2019 5th International Conference
on Electric Power Equipment- Switching Technology (ICEPE-ST)～ Frontiers of switching technology
for a future sustainable power system～

Final Program

Kitakyushu Japan, October 13-16, 2019

At the beginning of ICEPE-ST 2019

Thanks to your great contributions to the past four meetings of ICEPE-ST since 2011, this conference
has grown up one of the largest and most distinguished international conferences, and the importanceof this conference has been recognized much more by the engineers in the technological field.

Adding to the conventional research ones, the number of researching subjects have been increasing
recently. For example, in order to replace SF6 gas circuit breakers to the new ones, the developments
for the substitute gasses were being conducted, and new gasses have been demonstrated. I personallyfeel some anxiety about the usage of the new gasses. The control of the gasses might be a troublesometask for the production lines in case of plural gas mixture, and decomposition products of the newgasses after a high current interruption might have some influences to the environment if it is released
to the outside of the breakers. Aiming to cope these obstacles of the substitute gasses, high voltage
vacuum circuit breaker (VCB) development are being promoted such as one break VCB with 145 kVor above. It needs further consideration to clarify the voltage level of VCB to be realized in the future.

Semiconductor device application have been limited in ac low voltage applications so far, but recently
application to the dc circuit breaker is also expected. In the HV-DC power system with multi terminal
configuration, a very quick interruption is needed such as less than 10 ms interruption after the fault
detection, and moreover, 300 kV and 20 kA ratings will be requested to the circuit breakers in the HVDC system. I believe the HV-DCCB with a combination of the semiconductor devices and current
limiting equipment might be promising measures to the future power systems.

It is worthy of mention that these requirements are coming not only from Europe nor US but mainly
from Asian countries, and I truly want to promote the research and development based on thesesituations from now on. I believe that, in the near future, many valuable research themes are waiting
for us in the switching technology, and I sincerely want to encourage young engineers to participate
in the research and development groups especially in Asian countries.

S. Yanabu, Xi’an Jiaotong University

Chairperson of International Scientific Committee, ICEPE-ST

1

Welcome Message from Conference Chairperson

On behalf of the local organizing committee, I would like to cordially invite you all to the fifthinternational conference on electric power equipment - switching technology, ICEPE-ST 2019, which
will be held on 13th to 17th October, 2019, in Kitakyushu-city, Japan. The objective and focus of thisconference is to encourage the innovation in the field of science, technology and application of electric
power equipment especially switching technology. This time, we set the slogan of this conference as“Frontiers of switching technology for a future sustainable power system”. Based on this, we havealready accepted more than 250 abstracts from all over the world, which are covering following
scientific topics.

A. Switching phenomena in SF6 gas
B. SF6 alternative gasses for switching applications
C. Switching phenomena in vacuum
D. Switching phenomena in air
E. DC switching technology
F. Semi-conductor switching technology
G. Fault current switching technology
H. Fundamental physics and electrical insulation
I. Digital design and simulation in switchgear
J. Testing and measurement in switchgear
K. Operating mechanism in switchgear
L. Electrical contact
M. Digital and IoT application in switchgear
N. Others

In order to secure high reliability and safety in the modern electric power society, switching technology
is one of indispensable technologies for electric power equipment. Since economic growth in Asian
countries looks remarkable, a huge increase in electricity demand will be expected as before. Copingwith this increase, developments of electrical power equipment with higher reliability and lower costshould be desired. I sincerely hope that many young engineers in these regions will be encouraged tojoin these engineering areas and do their best for the amazing growth of these regions. Based on these
expectations, fifth conference will be held in Kitakyushu-city, Japan.
Kitakyushu-city of Fukuoka prefecture is the second largest city in Kyushu island with a populationof about one million.

The city is the industrial innovation city greatly contributed to Japan’s

industrial modernization, such as Yawata Steel Works in Kitakyushu area, which is Asia’s first2

successful integrated iron and steel works, and UNESCO’s world heritage of sites of Japan’s Meiji
industrial revolution, industrial heritages, etc. Moreover, Kitakyushu offers a lot of sightseeing spots
such as scenic beauty places. In addition, along with changes in the industrial structure in recent years,
high-technology industries including industrial robots, IC-related products and biotechnologies arebeing generated in this area.

I believe that inviting you from all over the world and from Japan to the valuable place of industry
may be useful to all participants of this conference. From my heart, I wish you have good times during
the conference, and enjoy it.

Eiji Kaneko

Conference Chairperson of ICEPE-ST 20193

Conference Committees

International Scientific Committee :Satoru Yanabu (Chairperson, Xi'an Jiaotong University), Japan
Jianhua Wang (Vice - Chairperson, Xi'an Jiaotong University), China
Young-Geun Kim (Vice - Chairperson, LSIS Co., Ltd.), Korea
Eiji Kaneko (University of the Ryukyus), Japan
Mingzhe Rong (Xi'an Jiaotong University), China
Yingsan Geng (Xi'an Jiaotong University), China
Lee Bang-Wook (Hanyang University), Korea
Rene Smeets (DNV GL KEMA Laboratories), The Netherlands
Mietek Glinkowski (Schneider Electric), USA
Leslie T. Falkingham (Vacuum Interrupters Limited), UK
Hiromichi Ohashi (Research Institute for Applied Sciences), Japan
John Shea (Schneider Electric), USA
Zhiyuan Liu (Xi’an Jiantong University), China

4Local Organizing Committee :Eiji Kaneko, (Chairperson, University of the Ryukyus)
Yasunobu Yokomizu, (Vice - Chairperson, Nagoya University)
Hajime Urai (Hitachi, Ltd.)
Tadashi Koshizuka (Tokyo Denki University)
Masahiro Kozako (Kyushu Institute of Technology)
Mikimasa Iwata (Central Research Institute of Electric Power Industry)
Motohiro Sato (Mitsubishi Electric Corporation)
Kunihiko Tomiyasu (Hitachi, Ltd.)
Gaku Asanuma (Fuji Electric Co., Ltd.)
Masayuki Hikita (Kyushu Institute of Technology)
Takeshi Shinkai (Tokyo University of Technology)
Yuki Inada (Saitama University)
Hiroyuki Iwabuchi (Yokohama National University)
Hiroki Kojima (Nagoya University)
Yasushi Yamano (Saitama University)
Hitoshi Saito (Meidensha Corporation)
Yasunori Tanaka (Kanazawa University)
Kazuto Yukita (Aichi Institute of Technology)
Shinya Ohtsuka (Kyushu Institute of Technology)
Yoshimitsu Niwa (Toshiba Infrastructure Systems & Solutions Corporation)
Naoki Asari (Toshiba Infrastructure Systems & Solutions Corporation)
Shigeyuki Tsukao (TEPCO Power Grid, Incorporated)
Kennichi Kitajima (TAKAOKA TOKO CO.,LTD.)
Keishi Nishimura (Togami Electric Mfg. Co., Ltd.)
Yoshihisa Ogawa (TAKAOKA TOKO CO.,LTD.)
Naoki Osawa (Kanazawa Institute of Technology)

Audit :
Akiko Kumada (The University of Tokyo)

5Schedule for ICEPE-ST 2019

Time table
Registration

16:00
16:00

13 Oct.

19:00
17:00
19:00
Welcome reception

Sub foyer
Registration

8:00
9:00

Main Hall

9:45

12:00

13:30

Plenary Lecture(China, Korea, Europe and Japan)

Opening Ceremony

Event Hall
14 Oct.

10:00

Break

15:00

17:30
17:30

15:30

Oral session : Category B-1

Oral session : Category B-2

Lunch

Break

International
Conference Room

Oral session : Category G-1

Oral session : Category G-2

Conference Room 21 AB

Oral session : Category C-1

Oral session : Category C-2

Conference Room 21 CD

Oral session : Category H-1

Oral session : Category H-2

Oral session : Category J-1

Oral session : Category E-1

Conference Room 22*Note : A group photo will be taken after the plenary lecture.
Registration

8:30
8:45

Main Hall

9:45

Invited Lecture 1

DCCB Special session

Event Hall
15 Oct.

10:00

12:00

13:30

Oral session :Category K-1
Oral session :Category I-1

Conference tour

Conference Room 22

Oral session : Category J-2

Oral session : Category J-3

Main Hall

8:30
10:00

International
Conference Room
Conference Room 21 AB
Conference Room 21 CD

12:00

13:30

Preparation of the poster session
Oral session :Category E-4
Oral session :Category C-4
Oral session :Category A-1

15:00
15:00

15:30

Poster session

Oral session : Category E-5
Oral session : Category L-1
Oral session : Category A-2
Oral session : Category D-1

Conference Room 22
Sub-entrance Hall
Category
A
B
C
D
E
F
G
H
I
J
K
L
M
N

11:00

Oral session : Category N-3

Event Hall

Break

Lunch :
Every room

Break

Oral session titles
Switching phenomena in SF6 gas
SF6 alternative gases for switching applications
Switching phenomena in vacuum
Switching phenomena in air
DC switching technology
Semi-conductor switching technology
Fault current limiting technology
Fundamental physics and electrical insulation
Digital design and simulation in switchgear
Testing and measurement in switchgear
Operating mechanism in switchgear
Electrical contacts
Digital and IoT application in switchgear
Others6

21:30

BanquetOral session : Category I-2
Oral session : Category C-3

9:45

18:40

Oral session : Category K-2

Oral session : Category H-3

8:45
Oral session :Category N-2

15:15

Lunch
Oral session :Category N-1
Oral session :Category M-1 and F-1

Conference Room 21 CD

Registration

15:00
15:00

Oral session : Category E-3

BreakInternational
Conference Room
Conference Room 21 AB

16 Oct.

11:00
Oral session :Category E-2

7

16:00

16:45

Invited Lecture 2

Closing Ceremony

17:30

Location

Main-entrance

Kitakyushu International Conference Center
Conference Location : Kitakyushu International Conference Center
3-9-30 Asano, Kokurakita-ku, Kitakyushu-shi, Fukuoka 802-0001
Telephone : +81-93-541-5931
Facsimile : +81-93-541-5928

The ICEPE-ST 2019 will be held at Kitakyushu International Conference Center in Kitakyushu City,
Fukuoka prefecture, Japan. Kitakyushu City is situated in the northernmost tip of the Kyushu. Apartfrom being a large government‐ordinance‐designated city, but also coexists with the nature. The
city has a wonderful night view sight, many historical sights and delicious foods.
Please enjoy Kitakyushu City by all means.

Mojiko-Retro8

Conference Rooms

Sub-entrance Hall

Registration desk
Event Hall

Main Hall

Main-entrance

Kokura station

Conference
Room 22
Conference
Room 21 AB
Conference
Room 21 CD

Sub foyer
International
Conference Room9

Registration & Reception

Registration desk will be located in the “Public Lounge” of Kitakyushu International ConferenceCenter, and will be opened as below.

Day

Date

Registration hour

SundayOctober 13th, 201916:00 - 19:00

MondayOctober 14th, 201908:00 - 17:30

Tuesday

October 15th, 201908:30 - 15:00

Wednesday

October 16th, 201908:30 - 15:00

Local Organizing Committee
LOC members stay at the registration desk. In case of any kind of troubles or inconvenient matters,
you are welcome to consult the LOC there.

Lunch & Banquet
On October 14th and 15th, all participants and accompanying persons can have buffet lunch at the"Event Hall" of the Kitakyushu International Conference Center. On 16th, a lunch box will be provided
to all participants and accompanying persons and can be taken it at each conference room.
Additionally, the banquet and conference tour (Banquet tour) are included in registration fee.

Coffee BreakCoffee, tea and refreshments will be provided during the coffee breaks at the “Event Hall” and the“Sub foyer”.

Free Wi-Fi Service
Free Wi-Fi is available in KICC. If you use it, please select "KICC" as SSID.

Tourist Information
A specialist advisor for sightseeing in Kitakyushu is at the registration desk. Please drop in.

10

Conference Tour and Banquet
Date : Tuesday, October 15th, 2019
Time Schedule*1 :15:10

Please get on a specific bus in front of the hall entrance

15:15 - 18:00

Conference Tour*2

18:00 - 18:40

Welcome drink at Art Hotel Kokura New Tagawa

19:00 - 21:30

Banquet at Art Hotel Kokura New Tagawa (https://art-kokura.com/)*1Note : The schedule might be changed by the traffic and weather conditions.
*2Note : The conference tour is divided into the following 3 courses. Online pre-order is required
due to bus capacity.

Course A: YASKAWA Innovation Center

YASKAWA Innovation Center is established as a facility toconvey the fun and wonders of manufacturing as well as therobotics technology to stakeholders including customers,
students, educational institutions and local residents.
(https://www.yaskawa.co.jp/robot-vil/en/miraikan/index.html)

Course B - 1 : City Tour (Kokura Castle and Garden)
Kokura Castle was built in 1602 at the beginning of the Edo
Period. The castle's traditional architecture provides aninteresting visual contrast to the neighboring modern
shopping and entertainment center. A small Japanesegarden with pond and the castle keep as borrowed scenery
was opened in 1998 on the castle grounds.
(https://www.kokura-castle.jp/https://www.gururich-kitaq.com/en/spot/kokura-castle)

Course B - 2 : City Tour (Mojiko-Retro)
Moji was one of five cities that merged to form Kitakyushu
City in 1963. Moji Port retains its relevance as a tourist
destination with a flavor from the past thanks to several
well-preserved Western style buildings from the Meiji andTaisho Periods. A romantic walk along the promenade by
the sea takes you to Kaikyo Plaza, a shopping facility wheresouvenirs and local produce are on sale.
(https://www.gururich-kitaq.com/en/spot/mojiko-retro)

11

Post Conference Tours

Date : Thursday, October 17th, 2019
The post conference tour is divided into the following 2 courses.

Couse 1 : Toyota Plant and Munakata Shrine
Itinerary

Date

Kitakyushu International
Conference Center

Toyota Motors Kyushu Miyata Plant

9:00

10:00

11:00

Oct-17th(Thu)

Munakata Shrine

Fukuoka Airport

11:30 (Lunch) 14:00

15:00(*Lunch include)

Toyota Motors Kyushu Miyata Plant: Car models built
at Toyota Motors Kyushu Miyata Plant include the Lexus
sedan IS and ES models, and the Toyota Harrier, Harrier
Hybrid, Highlander, and Highlander Hybrid SUV models.
(https://www.toyota-kyushu.com/english/index.html)

Munakata Shrine: Munakata Taisha in Fukuoka, arevered shrine with a history dating back to ancient times,
is famous for its charms for the protection of travelers.
Learn more about the highlights and mythical backgroundof this impressive World Heritage site.
(https://www.japan-guide.com/e/e4840.html)

12

Hakata Station
15:30

Couse 2 : Dazaifu Tenmangu and Shopping
Itinerary

Date

Kitakyushu International
Conference Center
Dazaifu Tenmangu
9:00

10:00

Kyushu National Museum
11:30

12:00

(Lunch)14:00

Oct-17th(Thu)

Canal City Hakata
15:00 (Shopping) 16:00

JR Hakata Station
16:30

Fukuoka Airport
17:00(*Lunch include)
Dazaifu Tenmangu: Among the hundreds of Tenmangu
Shrines throughout Japan, Dazaifu's is the most important
one alongside Kyoto's Kitano Tenmangu. Tenmangu
Shrines are dedicated to the spirit of Sugawara Michizane,
a scholar and politician of the Heian Period. Because of
his great learning, Michizane is Tenjin, a Shinto deity oflearning and culture, and is popular among students.
(https://www.japan-guide.com/e/e4851.html)

Kyushu National Museum: When Dazaifu's Kyushu
National Museum was opened in 2005, it joined the Tokyo,
Kyoto, and Nara National Museums to become only the
fourth national museum in the country. During the Naraand Heian Periods (710-1185), Dazaifu was the site of agovernment office that dealt with diplomatic relations
with mainland Asia. The museum recognizes its hostcity's history by basing its exhibits on the concept ofProvided by : Kyushu National Museum"Understanding Japanese culture from an Asian point ofview".

(https://www.kyuhaku.jp/en/)

Canal City Hakata: Canal City Hakata is a large
shopping and entertainment complex, calling itself a "City
Theater". Attractions include about 250 shops, cafes andrestaurants, a theater, game center, cinemas, two hotels
and a canal running through the complex.
(https://canalcity.co.jp/english)

CANAL CITY HAKATA 2019 Ⓒ

13

FUKUOKAJISHOInstructions for Speakers

Oral Presentation
Presentations of contributed papers must be made in 15 minutes:
10 minutes for the presentation, 4 minutes for questions and 1 minute for the change of the presenters.

The presenter can use a Windows PC (laptop) equipped in the room or your OWN PC.
If you use the PC equipped in the room, you should arrive in the session room at least 5 minutes prior
to the start of the session to load your presentation onto the PC using your USB memory stick. Notethat “Microsoft Power Point 2019” or “Adobe PDF” is available for the presentation that is installedin the PC, and we cannot guarantee the quality of Macintosh-based presentations.
In case of using your OWN PC, you should arrive in the session room at least 5 minutes prior to thestart of the session to ensure the connection to the projector. A VGA cable with a male connector will
be provided for hooking up your PC. A HDMI to VGA adapter is available on site.
In addition, a micro-phone, a laser pointer and a lectern will be provided for the presentation.

Also, photography and video recording are prohibited during the presentation.

Poster Session
A poster session will be held from 13:30 on October 16 for those who have applied for Wang Jimei
Best Investigator Award. Please prepare for the session between 11:00 and 13:30 on October 16 if you
are planning a poster session. The materials such as some scissors and tapes will be provided in Poster
Session Place.
Venue

:

Event Hall

*Note : Each poster will be assigned a panel, which has its own paper’s number, at the conference.

14

Topics

A. Switching phenomena in SF6 gas
B. SF6 alternative gasses for switching applications
C. Switching phenomena in vacuum
D. Switching phenomena in air
E. DC switching technology
F. Semi-conductor switching technology
G. Fault current switching technology
H. Fundamental physics and electrical insulation
I. Digital design and simulation in switchgear
J. Testing and measurement in switchgear
K. Operating mechanism in switchgear
L. Electrical contact
M. Digital and IoT application in switchgear
N. Others

15

Scientific Program
Date : Sunday, October 13th, 201916:00 - 19:00

Registration< Public Lounge of Kitakyushu International Conference Center >*Note : At registration, a participant will receive a conference kit including USB memory ofconference proceeding; the hard copy of papers will not be provided.

17:00 - 19:00

Welcome Reception<Sub foyer of Kitakyushu International Conference Center >Date : Monday, October 14th, 201908:00 - 17:30

Registration< Public Lounge of Kitakyushu International Conference Center >09:00 - 9:45

Opening Ceremony< Main Hall >Chairperson : Yasunori Tanaka ( Kanazawa University )Opening Address from Local Organizing Committee and Chairperson of International Scientific Committee

09:45 - 10:00

Coffee Break < Event Hall >10:00 - 12:00

Plenary Lecture< Main Hall >Chairperson : Yasunobu Yokomizu ( Nagoya University ), Hajime Urai ( Hitachi, Ltd. )PL-1

Innovation of switching technologies for future power systems(Dr. Hiroki Ito : Mitsubishi Electric Corporation, Japan)

PL-2

Computation for Electrical Switching Equipment(Prof. Mingzhe Rong : Xi’an Jiaotong University, China)

PL-3

SF6 free power equipment development for environmentally friendly policy(Dr. Jaeseop Ryu : LSIS Co. Ltd., Republic of Korea)

PL-4

Vacuum Switchgear; Past, Present, and Future(Prof. Leslie T Falkingham : Vacuum Interrupters Limited, UK)*Note : A group photo will be taken after the Plenary Lecture.

16

12:00 - 13:30

Lunch < Event Hall >13:30 - 15:00

Oral Sessions (*Note : 5 sessions will be held simultaneously)

Main Hall : SF6 alternative gases for switching applications
Chairperson : Jaeseop Ryu ( LSIS Co., Ltd. )13:30 - 15:00, Oct. 14 (Mon)B-1-1

Calculation of Thermodynamic Physical Parameters of C5F10O/CO2 and C6F12O/CO2 Mixtures
Xin Lin ( School of Electric Engineering, Shenyang University of Technology ), Zhaoxuan CUI ( School of Electric Engineering, Shenyang
University of Technology ), Zhenxin GENG ( School of Electric Engineering, Shenyang University of Technology ), Jia ZHANG ( Schoolof Electric Engineering, Shenyang University of Technology ), Zhen ZHANG ( School of Electric Engineering, Shenyang University ofTechnology ), Jianyuan XU ( School of Electric Engineering, Shenyang University of Technology )B-1-2

Numerical Thermofluid Simulation of Decaying Arc Behavior in CO 2/O2/C5F10O(C5-PFK) andCO2/C4F7N(C4-PFN) Considering More Than Nona-atomic Molecules
Yuki Demura ( Kanazawa University ), Yasunori Tanaka ( Kanazawa University ), Yusuke Nakano ( Kanazawa University ), Yoshihiko
Uesugi ( Kanazawa University ), Tatsuo Ishijima ( Kanazawa University )B-1-3

Simulation and comparison of arc characteristics in C4F7N,CO2 and SF6
Jianying Zhong ( Pinggao Group Co. Ltd. ), Sumin Pang ( Pinggao Group Co. Ltd. ), Yanwei Nan ( State Key Laboratory of ElectricalInsulation and Power Equipment, Xi'an Jiaotong University ), Hao Sun ( State Key Laboratory of Electrical Insulation and Power Equipment,
Xi'an Jiaotong University ), Wenkui Liu ( Pinggao Group Co. Ltd. )B-1-4

Introduction and Test Analysis of the Disconnector and Earthing Switches of SF 6/N2 Mixed Gas in GIS
Guangwei Fan ( Xi'an High Voltage Apparatus Research Institute Co., Ltd. ), Shi Huang ( Xi'an High Voltage Apparatus Research InstituteCo., Ltd. ), Gang Li ( Xi'an High Voltage Apparatus Research Institute Co., Ltd. ), Sili Yao ( Xi'an High Voltage Apparatus ResearchInstitute Co., Ltd. ), Haojun Liu ( Xi'an High Voltage Apparatus Research Institute Co., Ltd. )B-1-5

Experimental Study on the Insulation Performance of the Application of Fluoronitrile Mixture in 24kV RMUChenguang Han ( Xi’an XD Electric Research Institute Co. LTD ), Lili Guo ( Xi’an XD Electric Research Institute Co. LTD ), Shuai Wang
( Xi’an XD Electric Research Institute Co. LTD ), Ping Wang ( Xi’an XD Electric Research Institute Co. LTD )B-1-6

Comparison of decomposition by-products of C4F7N/CO2 mixed gas under AC discharge breakdown and partial
discharge
Yongyan Zhou ( Electric Power Research Institute of Guangdong Power Grid Co. Ltd ), Chenwei Li ( State Key Laboratory of ElectricalInsulation and Power Equipment, Xi’an Jiaotong University ), Nian Tang ( Electric Power Research Institute of Guangdong Power Grid Co.
Ltd ), Boya Zhang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Li Li ( ElectricPower Research Institute of Guangdong Power Grid Co. Ltd ), Xingwen Li ( State Key Laboratory of Electrical Insulation and Power
Equipment, Xi’an Jiaotong University ), X.D. Li ( Electric Power Research Institute of Guangdong Power Grid Co. Ltd )International Conference Room : Fault current limiting technology
Chairperson : Yoshimitsu Niwa ( Toshiba Infrastructure Systems & Solutions Corporation )13:30 - 15:00, Oct. 14 (Mon)
G-1-1

Research on Pressure Control Material Based on Granular System in Current Transfer
Yu Zhu ( School of Electrical Engineering, Dalian University of Technology ), Enyuan Dong ( School of Electrical Engineering, Dalian
University of Technology ), Mingjie Li ( School of Electrical Engineering, Dalian University of Technology ), Huan He ( Anshan Power
Supply Company, State Grid Liaoning Electric Power Co., Ltd. ), Zirong Zhang ( Anshan Power Supply Company, State Grid Liaoning
Electric Power Co., Ltd. ), Xinghai Guo ( Anshan Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. )17

G-1-2A new DC Current Limiting Device Based on Medium Frequency Transformer
Lin Zou ( Electric Power Research Institute, CSG ), Zhihui Huang ( School of Electrical Engineering, Dalian University of Technology ),Daizhong Zhu ( Anhui Electric Power Egrid Equipment Co., LTD. ), Yongxing Wang ( School of Electrical Engineering, Dalian Universityof Technology ), Jiyan Zou ( School of Electrical Engineering, Dalian University of Technology )G-1-3

Research on Voltage Sag Control Scheme Based on Fast Vacuum Switch
Jianghua Yu ( Anhui Electric Power Egrid Equipment Co., LTD ), Zhu Liu ( School of electrical engineering, Dalian University ofTechnology ), Lin Zou ( Electric Power Research Institute, CSG ), Zhihui Huang ( School of electrical engineering, Dalian University ofTechnology ), Yongxing Wang ( School of electrical engineering, Dalian University of Technology )G-1-4

Barrier Effect on the DC Breakdown Characteristics of Cryogenic Nitrogen Gas for the Designing of theSuperconducting Fault Current Limiter
Lei Gao ( State Key laboratory of Electrical Insulation and Power Equipment ), Bin Xiang ( State Key laboratory of Electrical Insulation
and Power Equipment ), Jinhui Luo ( State Key laboratory of Electrical Insulation and Power Equipment ), Zhiyuan Liu ( State Keylaboratory of Electrical Insulation and Power Equipment ), Yingsan Geng ( State Key laboratory of Electrical Insulation and Power
Equipment ), Jianhua Wang ( State Key laboratory of Electrical Insulation and Power Equipment ), Satoru Yanabu ( State Key laboratory
of Electrical Insulation and Power Equipment )G-1-5

Study on Dynamic Current Distribution Characteristics of non-uniform Superconducting Types in parallel
connection
Mingqian Wen ( State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of ElectricalEngineering, Chongqing University ), Quan Zhou ( State Key Laboratory of Power Transmission Equipment & System Security and New
Technology, School of Electrical Engineering, Chongqing University ), Yaxiong Tan ( State Key Laboratory of Power Transmission
Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University ), Shushan Luo ( State Key
Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing
University ), Jiajun Pan ( State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School ofElectrical Engineering, Chongqing University )G-1-6

Numerical Thermofluid Simulation on 10 kA-class High Current Fault Arcs in Air Contaminated with Metal
Vapor from Evaporation of Metal Electrodes in Open Air
Toru Takeshima ( Kanazawa University ), Yasunori Tanaka ( Kanazawa University ), Yusuke Nakano ( Kanazawa University ), Yoshihiko
Uesugi ( Kanazawa University ), Tatsuo Ishijima ( Kanazawa University )Conference Room 21 AB : Switching phenomena in vacuum
Chairperson : Erik D Tayler ( Siemens AG )13:30 - 15:00, Oct. 14 (Mon)
C-1-1

Transition process of vacuum arc to diffusion stage under transverse magnetic fieldShixin Xiu ( Xi'an Jiaotong University ), Zixi Liu ( Xi'an Jiaotong University ), Tao Liu ( Xi'an Jiaotong University ), Rui Li ( Xi'an Jiaotong
University ), Dingyu Feng ( Xi'an Jiaotong University )C-1-2

Research on the Interruption Characteristics of Wan-type Transverse Magnetic Field Contacts
Li Zhao ( Xi'an Jiaotong University ), Shixin Xiu ( Xi'an Jiaotong University ), Jiashuo Cui ( Xi'an Jiaotong University ), Zepeng Chen
( Xi'an Jiaotong University ), Mengru Li ( Xi'an Jiaotong University ), Bo Yuan ( Xi'an Jiaotong University )C-1-3

Feasibility of Time-Resolved Integral Field Spectroscopy for Vacuum Arc Observation
Yoshihiko Matsui ( MEIDENSHA CORPORATION ), Akihiko Suwa ( MEIDENSHA CORPORATION ), Kazuya Kato ( MEIDENSHACORPORATION )C-1-4

Investigation on the influence of the dynamic characteristics on the DC vacuum arc
Xingyu Guo ( School of Electrical Engineering, Dalian University of Technology ), Deshi Liang ( School of Electrical Engineering, Dalian
University of Technology ), Jiyan Zou ( School of Electrical Engineering, Dalian University of Technology ), Huang Zhihui ( School ofElectrical Engineering, Dalian University of Technology ), Liu Ruitong ( State Grid Liaoning Electric Power Research Institute )18

C-1-5

Suitability of Vacuum Circuit Breakers for Generator Switching Applications according to Dual Logo standard
IEC/IEEE 62271-37-013
Karthik Reddy Venna ( Siemens AG ), Andreas Lawall ( ABB AG ), Martin Leusenkamp ( EATON Electrical Ltd )C-1-6

Experimental Investigation of Vacuum Arc Characteristics under Various Cathode Materials Subject to Axial
Magnetic Field
Hui Ma ( Xi'an Jiaotong University ), Zhiyuan Liu ( Xi'an Jiaotong University ), Yingsan Geng ( Xi'an Jiaotong University ), Jianhua Wang
( Xi'an Jiaotong University ), Qiming Li ( Xi'an Jiaotong University )Conference Room 21 CD : Fundamental physics and electrical insulation
Chairperson : Masayuki Hikita ( Kyushu Institute of Technology )13:30 - 15:00, Oct. 14 (Mon)H-1-1

Fundamental Study on Charging Potential of Floating Electrode Modeled on Vacuum Interrupter under AC
Voltage Application
Hideaki Fukuda ( MEIDENSHA CORPORATION ), Kenta Yamamura ( MEIDENSHA CORPORATION ), Ryutaro Kusa ( Saitama
University ), Issei Fujita ( Saitama University ), Yasushi Yamano ( Saitama University )H-1-2

Impulse Breakdown Characteristics of Double Vacuum Gaps in Series with Asymmetric Distribution
Jingyu Shen ( Xi’an Jiaotong University ), Hui Ma ( Xi’an Jiaotong University ), Xiangwen Xiao ( Xi’an Jiaotong University ), Yingsan
Geng ( Xi’an Jiaotong University ), Zhiyuan Liu ( Xi’an Jiaotong University ), Jianhua Wang ( Xi’an Jiaotong University )H-1-3

3-D Hybrid Simulation of Low-current Vacuum Plasma Jets under Axial Magnetic Fields
Zhiyuan Cao ( State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University Xi’an ), Yuwei Du ( StateKey Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University Xi’an ), Zhenxing Wang ( State Key Laboratory
of Electrical Insulation and Power Equipment Xi’an Jiaotong University Xi’an ), Yudong Xu ( State Key Laboratory of Electrical Insulation
and Power Equipment Xi’an Jiaotong University Xi’an ), Feng Chen ( State Key Laboratory of Electrical Insulation and Power Equipment
Xi’an Jiaotong University Xi’an ), Yingsan Geng ( State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong
University Xi’an ), Jianhua Wang ( State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University Xi’an ),Zhiyuan Liu ( State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University Xi’an )H-1-4

Study on Breakdown Stability of Gas Spark Switches
Wenlong Yan ( State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University ), Boyang Chen ( State Key
Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University ), Zhenxing Wang ( State Key Laboratory of ElectricalInsulation and Power Equipment Xi’an Jiaotong University ), Liqiong Sun ( State Key Laboratory of Electrical Insulation and Power
Equipment Xi’an Jiaotong University ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong
University ), Yingsan Geng ( State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University ), Jianhua
Wang ( State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University )H-1-5

Research on radiation model for fault arc in an enclosed air container
Mei Li ( Xi'an University of Technology ), Peng, Gong ( Henan Electric Power Transmission and Transformation Construction Co., Ltd. )H-1-6

Relationship between Morphology Feature of Contact Surfaces and Impulse Breakdown Voltage in Vacuum
Gap under a Non-uniform Electric Field
Guoqin Li ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an ), Hui Ma ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an ), Jiangang Ding ( State Key Laboratory ofElectrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation
and Power Equipment, Xi’an Jiaotong University, Xi’an ), Jianhua Wang ( State Key Laboratory of Electrical Insulation and Power
Equipment, Xi’an Jiaotong University, Xi’an ), Yingsan Geng ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an
Jiaotong University, Xi’an )19Conference Room 22 : Testing and measurement in switchgear
Chairperson : Junzo Kida ( Hitachi, Ltd. )13:30 - 15:00, Oct. 14 (Mon)J-1-1

Mechanical Condition Monitoring of On-load Tap Changer Based on Textural Features of Recurrence Plots ofVibration Signals
Fenghua Wang ( Key Laboratory of Control of Power Transmission and Conversion ( Shanghai Jiao Tong University ), Ministry of
Education ), Dongxu Zhou ( Key Laboratory of Control of Power Transmission and Conversion ( Shanghai Jiao Tong University ), Ministryof Education ), S Zhang ( Logistics Department, Shanghai Jiaotong University )J-1-2

Study on Gas Decomposition Characteristics of SF6 with Moisture After Current Interruption
Xianhai Pang ( State Grid Hebei Electric Power Research Institute ), Li Zhen ( State Grid Hebei Electric Power Supply Co., Ltd ), Yuyou
Long ( Stage Key Laboratory of Electrical Insulation and Power Equipment, Department of Electrical of Engineering, Xi'an Jiaotong
University ), Kun Yu ( Stage Key Laboratory of Electrical Insulation and Power Equipment, Department of Electrical of Engineering, Xi'an
Jiaotong University ), Shixin Xiu ( Stage Key Laboratory of Electrical Insulation and Power Equipment, Department of Electrical ofEngineering, Xi'an Jiaotong University )J-1-3

Influence of Grease on Characteristics of Gas Decomposition Product After Breaking Current of SF 6 Circuit
Breaker
Xianhai Pang ( State Grid Hebei Electric Power Research Institute ), Boyan Jia ( State Grid Hebei Electric Power Research Institute ),Zhiheng Sun ( Southern Power Supply Company ), Yuyou Long ( Stage Key Laboratory of Electrical Insulation and Power Equipment,
Department of Electrical of Engineering, Xi'an Jiaotong University ), Shixin Xiu ( Stage Key Laboratory of Electrical Insulation and Power
Equipment, Department of Electrical of Engineering, Xi'an Jiaotong University ), Tao Liu ( Stage Key Laboratory of Electrical Insulation
and Power Equipment, Department of Electrical of Engineering, Xi'an Jiaotong University )J-1-4

Reliability Prediction of Permanent Magnetic Actuator Under the Influence of Multi-factors
Yongxing Wang ( School of Electrical Engineering, Dalian University of Technology ), Fangyuan Lv ( School of Electrical Engineering,
Dalian University of Technology ), Enyuan Dong ( School of Electrical Engineering, Dalian University of Technology ), Jiyan Zou ( Schoolof Electrical Engineering, Dalian University of Technology ), Ying Zhang ( College of Information Science and Technology, Nanjing
Forestry University ), Huan He ( Anshan Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. )J-1-5±535kV High Voltage DC Circuit Breaker Insulation Test Analysis
Chen Liu ( Xi'an High Voltage Apparatus Research Institute Co., Ltd ), Qiang Li ( Xi'an High Voltage Apparatus Research Institute Co.,Ltd ), Chunqiang Su ( Sieyuan Electric Co., Ltd. ), Meng Shen ( Xi'an High Voltage Apparatus Research Institute Co., Ltd ), YongchengWang ( Xi'an High Voltage Apparatus Research Institute Co., Ltd ), Xingping Gou ( Xi'an High Voltage Apparatus Research Institute Co.,Ltd ), Xiaoyan Guo ( Xi'an High Voltage Apparatus Research Institute Co., Ltd )J-1-6

Research on Suppression Methods of Overshoot and Power-frequency Voltage Drop During Lightning Impulse
Test of UHV Switchgear
Meng Shen ( Xi'an High Voltage Apparatus Research Institute Co., Ltd. ), Chunmin Zhang ( Xi'an High Voltage Apparatus ResearchInstitute Co., Ltd. ), Bo Wang ( Xi'an High Voltage Apparatus Research Institute Co., Ltd. ), Chen Liu ( Xi'an High Voltage Apparatus
Research Institute Co., Ltd. ), Lei Zhong ( Xi'an High Voltage Apparatus Research Institute Co., Ltd. ), Xiaoyan Guo ( Xi'an High Voltage
Apparatus Research Institute Co., Ltd. )15:00 - 15:30

Coffee Break < Event Hall, Sub foyer >20

15:30 - 17:30

Oral Sessions (*Note : 5 sessions will be held simultaneously)

Main Hall : SF6 alternative gases for switching applications
Chairperson : Yasunori Tanaka ( Kanazawa University )15:30 - 17:15, Oct. 14 (Mon)
B-2-1

A New Prediction Model of SF6 Alternative Gases in Electrical Strength
Luqi Liang ( State Key Laboratory of Electrical Insulation and Power Equipment ), Yi Wu ( State Key Laboratory of Electrical Insulation
and Power Equipment ), Hao Sun ( State Key Laboratory of Electrical Insulation and Power Equipment ), Mingzhe Rong ( State Key
Laboratory of Electrical Insulation and Power Equipment ), Chunlin Wang ( State Key Laboratory of Electrical Insulation and Power
Equipment ), Haodong Chang ( State Key Laboratory of Electrical Insulation and Power Equipment )B-2-2

SF6 Alternative Gas Lightning Impulse Insulation Breakdown Characteristic in Medium Voltage
Ryul Hwang ( HANYANG UNIVERSITY ), In-Seok Choi ( HANYANG UNIVERSITY ), Jae-Hong Koo ( HANYANG UNIVERSITY ),Yu-Min Kim ( Hyundai Electric & Energy Systems ), Bang-Wook Lee ( HANYANG UNIVERSITY )B-2-3

Theoretical determination of total electron-impact ionization cross sections of dichlorodifluoromethane R12 andtetrafluoroethane (R134)
Feng Tang ( Shenzhen Power Supply Bureau Co., Ltd. ), Jiayu Xiong ( State Key Laboratory of Electrical Insulation and Power Equipment,
Xi’an Jiaotong University ), Boya Zhang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ),Qishen Lv ( Shenzhen Power Supply Bureau Co., Ltd. ), Xingwen Li ( State Key Laboratory of Electrical Insulation and Power Equipment,
Xi’an Jiaotong University )B-2-4

Dependence of Critical Electric Field Strength in High Temperature CO2 Gas on Contamination of PTFE Vapor
Toshiya Yokoi ( Aichi Institute of Technology ), Akihiro Tsusaka ( Aichi Institute of Technology ), Toshiro Matsumura ( Aichi Institute ofTechnology ), Kazuto Yukita ( Aichi Institute of Technology ), Yasuyuki Goto ( Aichi Institute of Technology ), Yasunobu Yokomizu( Nagoya University )B-2-5

Breaking and Switching Performance with Fluoronitile (C4F7N) Mixtures on 170kV 50kA 60Hz GIS
Hae-Eun Jung ( LSIS Co., Ltd ), Je-Uk Je-Uk ( LSIS Co., Ltd ), Hee-Sub Ahn ( LSIS Co., Ltd ), Jong-Ung Choi ( LSIS Co., Ltd ), YongGeun Kim ( LSIS Co., Ltd ), Maxime Perret ( GE Grid Solutions, France ), Karim Bousoltane ( GE Grid Solutions, France )B-2-6

Post-arc Dielectric Recovery Characteristics of Free-burning Ultrahigh-Pressure Nitrogen Arc
Fahim Abid ( Norwegian University of Science and Technology, Trondheim, Norway ), Kaveh Niayesh ( Norwegian University of Scienceand Technology, Trondheim, Norway ), Nina Stoa-Aanensen ( SINTEF Energy Research, Trondheim, Norway )B-2-7

Experiment Study on the Influence of Gas Humidity and Purity on the Property of 40.5 kV N 2 Insulated
Switchgear
Yuyou Long ( Stage Key Laboratory of Electrical Insulation and Power Equipment, Department of Electrical of Engineering, Xi'an Jiaotong
University ), Feng Zhu ( State Grid Anhui Electric Power Research Institute ), Shixin Xiu ( Stage Key Laboratory of Electrical Insulation
and Power Equipment, Department of Electrical of Engineering, Xi'an Jiaotong University ), Fengxiang Ma ( State Grid Anhui ElectricPower Research Institute ), Zepeng Chen ( Stage Key Laboratory of Electrical Insulation and Power Equipment, Department of Electricalof Engineering, Xi'an Jiaotong University ), Zhenxi Su ( State Grid Anhui Electric Power Research Institute )International Conference Room : Fault current limiting technology
Chairperson : Takeshi Shinkai ( Tokyo University of Technology )15:30 - 16:30, Oct. 14 (Mon)
G-2-1

Introduction of an Active Triggered Liquid Metal Fault Current-limiting Method
Hailong He ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Jiaze Li ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Yi Wu ( State Key Laboratory of Electrical Insulation
and Power Equipment, Xi'an Jiaotong University ), Peng Zhao ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an
Jiaotong University ), Lingxiao Li ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University )21

G-2-2

Investigation of a Liquid Metal Fault Current Limiter Based on Current Injection Method
Beibei Wang ( Xi'an Jiaotong University ), Hailong He ( Xi'an Jiaotong University ), Yi Wu ( Xi'an Jiaotong University ), Chunping Niu( Xi'an Jiaotong University ), Mingzhe Rong ( Xi'an Jiaotong University ), Longlong Wang ( Xi'an Jiaotong University )G-2-3

Investigation of Liquid Metal Current Limiter for MVDC Power System
Mingzhe Rong ( State Key Lab of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Zhuo Yang ( State Key Lab ofElectrical Insulation and Power Equipment, Xi’an Jiaotong University ), Qing Wan ( State Grid Shaanxi Electric Power Research Institute ),Hailong He ( State Key Lab of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Yi Wu ( State Key Lab of ElectricalInsulation and Power Equipment, Xi’an Jiaotong University ), Longlong Wang ( State Key Lab of Electrical Insulation and Power
Equipment, Xi’an Jiaotong University )G-2-4

Investigation on Fault Characteristics and Intelligent Diagnosis of a DC Superconducting Fault Current Limiter
Yaxiong Tan ( State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of ElectricalEngineering, Chongqing University ), Jiajun Pan ( State Key Laboratory of Power Transmission Equipment & System Security and New
Technology, School of Electrical Engineering, Chongqing University ), Chao Sheng ( Electric Power Research Institute of Guangdong
Power Grid Corporation, China Southern Power Grid ), Leishi Xiao ( Electric Power Research Institute of Guangdong Power Grid
Corporation, China Southern Power Grid ), Quan Zhou ( State Key Laboratory of Power Transmission Equipment & System Security and
New Technology, School of Electrical Engineering, Chongqing University ), Jian Li ( State Key Laboratory of Power Transmission
Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University)

Conference Room 21 AB : Switching phenomena in vacuum
Chairperson : Leslie T. Falkingham ( Vacuum Interrupters Limited )15:30 - 17:00, Oct. 14 (Mon)
C-2-1

Influence of Opening Velocity on Arcing Time Windows of Fast Vacuum Circuit Breaker in Duties of Terminal
Fault Test T100s
Wen Shi ( State Key Laboratory of Electrical Insulation and Power Equipment, Department of Electrical Engineering, Xi'an Jiaotong
University ), Bojian Zhang ( State Key Laboratory of Electrical Insulation and Power Equipment, Department of Electrical Engineering,
Xi'an Jiaotong University ), Chen Guan ( State Key Laboratory of Electrical Insulation and Power Equipment, Department of ElectricalEngineering, Xi'an Jiaotong University ), Jian’gang Ding ( State Key Laboratory of Electrical Insulation and Power Equipment, Department
of Electrical Engineering, Xi'an Jiaotong University ), Xiaofei Yao ( State Key Laboratory of Electrical Insulation and Power Equipment,
Department of Electrical Engineering, Xi'an Jiaotong University ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation and Power
Equipment, Department of Electrical Engineering, Xi'an Jiaotong University ), Jianhua Wang ( State Key Laboratory of Electrical Insulation
and Power Equipment, Department of Electrical Engineering, Xi'an Jiaotong University ), Yingsan Geng ( State Key Laboratory ofElectrical Insulation and Power Equipment, Department of Electrical Engineering, Xi'an Jiaotong University )C-2-2

Two dimensional distribution diagnostic of copper vapor in a vacuum arc by laser-induced fluorescence
Jiankun Liu ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Ziru Zha ( State Key
Laboratory of Electrical Insulation and Power Equipment , Xi'an Jiaotong University ), Zhenxing Wang ( State Key Laboratory of ElectricalInsulation and Power Equipment , Xi'an Jiaotong University ), Liqiong Sun ( State Key Laboratory of Electrical Insulation and Power
Equipment , Xi'an Jiaotong University ), Jianhua Wang , Yingsan Geng , Zhiyuan Liu

C-2-3

Three-Dimensional Reconstruction of Vacuum Arc Motion under Transverse Magnetic Field
Yi Li ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Guan Wang ( State Key Laboratory
of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Jiankun Liu ( State Key Laboratory of Electrical Insulation andPower Equipment, Xi'an Jiaotong University ), Zhenxing Wang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an
Jiaotong University ), Jianhua Wang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ),Yingsan Geng ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Zhiyuan Liu ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University )C-2-4

Evaluation of the Impact of Out-Of-Phase faults on Generators and Generator Circuit-Breakers implementing
Vacuum Interruption Technology
Fabian Rademacher ( Siemens AG ), Karthik Reddy Venna ( Siemens AG )C-2-5

Vacuum breakdown voltage distributions between different contact arrangements and materials
Erik D. Taylor ( Siemens AG ), Jorg Genzmer ( Siemens AG ), Andreas Schulz ( Siemens AG )22

C-2-6

An arc-less DC Vacuum Circuit Breaker Technology Based On Capacitor Absorbing Energy
Kun Yang ( State Key laboratory of Electrical Insulation and Power Equipment ), Lei Gao ( State Key laboratory of Electrical Insulation
and Power Equipment ), Bin Xiang ( State Key laboratory of Electrical Insulation and Power Equipment ), Zhiyuan Liu ( State Keylaboratory of Electrical Insulation and Power Equipment ), Yingsan Geng ( State Key laboratory of Electrical Insulation and Power
Equipment ), Jianhua Wang ( State Key laboratory of Electrical Insulation and Power Equipment )Conference Room 21 CD : Fundamental physics and electrical insulation
Chairperson : Akiko Kumada (the University of Tokyo), Yusuke Nakano (Kanazawa University)

15:30 - 17:45, Oct. 14 (Mon)
H-2-1

Analysis of Ferromagnetic Resonance in 550 kV GIS Electromagnetic Voltage Transformer
Shuang LENG ( School of Electrical Engineering Shenyang University of Technology ), Sha HAO ( School of Electrical Engineering
Shenyang University of Technology ), Xin LIN ( School of Electrical Engineering Shenyang University of Technology ), Chen CAO( School of Electrical Engineering Shenyang University of Technology ), Xiaolong LI ( School of Electrical Engineering Shenyang
University of Technology )H-2-2

Two-Dimensional Observation of Single Cathode Spot Copper Vapor in Vacuum Arcs by Laser-Induced
Fluorescence
Liqiong Sun ( Xi'an Jiaotong University ), Yuecheng Li ( Xi'an Jiaotong University ), Jiankung Liu ( Xi'an Jiaotong University ), Yi Li( Xi'an Jiaotong University ), Zhenxing Wang ( Xi'an Jiaotong University ), Jianhua Wang ( Xi'an Jiaotong University ), Yingsan Geng
( Xi'an Jiaotong University ), Zhiyuan Liu ( Xi'an Jiaotong University )H-2-3

Particle-In-Cell Monte Carlo Collision Simulation of the Breakdown Initiating Process in Vacuum
Haruki Ejiri ( The University of Tokyo ), Takashi Fujii ( The University of Tokyo ), Akiko Kumada ( The University of Tokyo ), KunihikoHidaka ( The University of Tokyo )H-2-4

Discharge Path Measurement of A Vacuum Interrupter with Fixed Break after Suffering High Inrush Current
Jian'gang Ding ( State Key Laboratory of Electrical Insulation and Power Equipment ), Xiaofei Yao ( State Key Laboratory of ElectricalInsulation and Power Equipment ), Hui Ma ( State Key Laboratory of Electrical Insulation and Power Equipment ), Jiali Chen ( State Key
Laboratory of Electrical Insulation and Power Equipment ), Guoqin Li ( State Key Laboratory of Electrical Insulation and Power
Equipment ), Xue Liu ( State Key Laboratory of Electrical Insulation and Power Equipment ), Wen Shi ( State Key Laboratory of ElectricalInsulation and Power Equipment ), Xiaojun Wang ( Shaanxi Sirui Advanced Materials CO., LTD ), Kai Liu ( Shaanxi Sirui Advanced
Materials CO., LTD ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation and Power Equipment ), Yingsan Geng ( State Key
Laboratory of Electrical Insulation and Power Equipment ), Jianhua Wang ( State Key Laboratory of Electrical Insulation and Power
Equipment )H-2-5

Characteristics of Field Emission Phenomena of Single Micro-protrusion on Vacuum Gap Cathode Based on
Fractal Theory
Yingyao Zhang ( Tongji University ), Chen Shaojie ( Tongji University ), Ma Manman ( Tongji University ), Yang He ( Electrical Sector
APAC Eaton ), Hu Biao ( Electrical Sector APAC Eaton ), Wang Xiaojun ( Shaanxi Sirui Advanced Material Co., Ltd )H-2-6

Comparison of non-chemical equilibrium effects in the decaying arc in different gases and conditions
Hao Sun ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Yi Wu ( State Key Laboratory
of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Yasunori Tanaka ( Faculty of Electrical and Computer
Engineering, Kanazawa University ), Kentaro Tomita ( Interdisciplinary Graduate School of Engineering Sciences, Kyushu University ),Mingzhe Rong ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University )H-2-7

Suppression of Conditioning Effect in Vacuum by Micro-protrusions from Anode
Fuminori Kondo ( Nagoya University ), Hiroki Kojima ( Nagoya University ), Hideaki Fukuda ( MEIDENSHA CORPORATION ),Masayuki Sakaki ( MEIDENSHA CORPORATION ), Naoki Hayakawa ( Nagoya University )23

H-2-8Prediction of dielectric strength of Nitrogen by coupling Boltzmann analysis and transport calculation at room
temperature
Yanwei Nan ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Minzhe Rong ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Yi Wu ( State Key Laboratory of Electrical Insulation
and Power Equipment, Xi'an Jiaotong University ), Hao Sun ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an
Jiaotong University ), Luqi Liang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University )H-2-9

Development of Thermoplastic Materials for the Application of Eco-friendly
Donghoon Jeong ( Hyosung Haeavy industries Corporation ), Jung Woo Park ( Hyosung Haeavy industries Corporation ), Young Jun Jeon
( Hyosung Haeavy industries Corporation ), Joo Hyun Lee ( Hyosung Haeavy industries Corporation )Conference Room 22 : DC switching technology
Chairperson : Nadew Adisu Belda( DNV GL KEMA Laboratories )15:30 - 17:00, Oct. 14 (Mon)E-1-1

Approach to Mechanism Interpretation of Arc Voltage Rise by Polymer Cylinder Installation in Silica-Sand
Naoto Kodama ( Nagoya University ), Yasunobu Yokomizu ( Nagoya University ), Koya Nakamura ( Nagoya University ), Asato Takahashi( Nagoya University ), Yusuke Kondo ( Pacific Engineering Corporation )E-1-2

Influence of Oscillating Frequency of External Transverse Magnetic Field on DC Vacuum Arc Evolution
Jingyi Wang ( Xi'an Jiaotong University ), Hui Ma ( Xi'an Jiaotong University ), Shaowei Liu ( Xi'an Jiaotong University ), Feiliang Hu( Xi'an Jiaotong University ), Zhiyuan Liu ( Xi'an Jiaotong University ), Yingsan Geng ( Xi'an Jiaotong University ), Jianhua Wang ( Xi'an
Jiaotong University )E-1-3

Current Injection Circuit Breakers for HVDC: Overview on Improved Injection Circuits
Tim Schultz ( High Voltage Laboratory, ETH Zurich ), Patrik Herzog ( High Voltage Laboratory, ETH Zurich ), Christian M. Franck ( High
Voltage Laboratory, ETH Zurich )E-1-4

Investigation on the High-Speed Interruption Strategy of the Medium-voltage Hybrid DC Circuit Breaker
Huaqing Wang ( Zhengzhou University , Henan Engineering Research Center of Power Transmission & Distribution Equipment andElectrical Insulation ), Guowei Ge ( Zhengzhou University , Henan Engineering Research Center of Power Transmission & Distribution
Equipment and Electrical Insulation ), Xian Cheng ( Zhengzhou University , Henan Engineering Research Center of Power Transmission& Distribution Equipment and Electrical Insulation ), Senlin Shen ( Zhengzhou University , Henan Engineering Research Center of Power
Transmission & Distribution Equipment and Electrical Insulation )E-1-5

Synthesis Test Control of HVDC Circuit Breaker
Shijia Wang ( School of Electrical Engineering, Dalian University of Technology ), Yongxing Wang ( School of Electrical Engineering,
Dalian University of Technology ), Enyuan Dong ( School of Electrical Engineering, Dalian University of Technology ), Jiyan Zou ( Schoolof Electrical Engineering, Dalian University of Technology ), Chao Sun ( School of Electrical Engineering, Dalian University ofTechnology ), Lu Jiang ( Hydropower Branch Maintenance Center, State Grid Hunan Electric Power Co., Ltd., China )E-1-6

Research on the Factors Influencing the Post-arc Current in Vacuum DC Interruption
Enyuan Dong ( School of Electrical Engineering, Dalian University of Technology), Yuxuan Dai ( School of Electrical Engineering,
Dalian University of Technology), Taotao Qin ( the National Key Laboratory of Transient Physics, Nanjing University of Science andTechnology), Yongxing Wang ( School of Electrical Engineering, Dalian University of Technology), Bo Shao ( Anshan Power Supply
Company State Grid Liaoning Electric Power Co., Ltd.), Kai Liang ( Anshan Power Supply Company State Grid Liaoning ElectricPower Co., Ltd.)24

Date : Tuesday, October 15th, 201908:30 - 15:00

Registration< Public Lounge of Kitakyushu International Conference Center >08:45 - 9:45

Invited Lecture 1< Main Hall >Chairperson : Mikimasa Iwata ( Central Research Institute of Electric Power Industry )IL-1

HVDC circuit breaker technology(Dr. René Peter Paul Smeets, KEMA Laboratories of DNV GL, the Netherlands)

09:45 - 10:00

Coffee Break < Event Hall >10:00 - 11:00

Oral Sessions (*Note : 5 sessions will be held simultaneously)

Main Hall : DCCB Special session
Chairperson : René Peter Paul Smeets ( DNV GL KEMA Laboratories )Technical Panel on "HVDC circuit breaker Technology"
Convener: Dr. René Peter Paul Smeets, KEMA Laboratories of DNV GL, the Netherlands
This panel aims to present the HVDC circuit breaker development, testing and field demonstration. 4-5 speakers areinvited.

International Conference Room : Others
Chairperson : Chae-Yoon Bae ( LSIS Co., Ltd. )10:00 - 11:00, Oct. 15 (Tue)N-1-1

Preparation and properties of polystyrene deposited with TiN film using atmospheric-pressure plasma jet
Fei Kong ( Key Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering, Chinese Academy of Sciences ),Penghao Zhang ( Key Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering, Chinese Academy of
Sciences ), Chengyan Ren ( Key Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering, Chinese Academyof Sciences, University of Chinese Academy of Sciences ), Cheng Zhang ( Key Laboratory of Power Electronics and Electric Drive, Instituteof Electrical Engineering, Chinese Academy of Sciences, University of Chinese Academy of Sciences ), Tao Shao ( Key Laboratory ofPower Electronics and Electric Drive, Institute of Electrical Engineering, Chinese Academy of Sciences, University of Chinese Academyof Sciences )N-1-2

Influence of Moisture on Dielectric Responses of Oil -Impregnated Paper Condenser Bushings
Chao Wei ( Jiangsu Electric Power Company Research Institute , State Key Laboratory of Power Transmission Equipment & System
Security and New Technology,Chongqing University ), Caibo Liao ( Jiangsu Electric Power Company Research Institute ), Yuncai Lu( Jiangsu Electric Power Company Research Institute ), Lin Du ( State Key Laboratory of Power Transmission Equipment & System Security
and New Technology,Chongqing University ), Xiangxiang Chen ( State Key Laboratory of Power Transmission Equipment & System
Security and New Technology,Chongqing University )N-1-3

Algebra of Fractal Vector as a Tool for Mapping two Different Mashes
Amer Smajkic ( Faculty of Electrical Engineering, University of Sarajevo ), Sead Delic ( EnergoBos ILJIN d.o.o. Sarajevo ), Dejan Beslija( Faculty of Electrical Engineering, University of Sarajevo ), Kyong Hoe Kim ( ILJIN Electric Co. Ltd. ), Mirsad Kapetanovic ( Faculty ofElectrical Engineering, University of Sarajevo , EnergoBos ILJIN d.o.o. Sarajevo )25

N-1-4

DC Transformer Detection of Power Transformer Based on Characteristic Analysis of Vibration Signal
Jinlong WANG ( School of Electrical Engineering ,Shenyang University of Technology ), Jianyuan XU ( School of ElectricalEngineering ,Shenyang University of Technology ), Chen CAO ( School of Electrical Engineering ,Shenyang University of Technology ),Xin LIN ( School of Electrical Engineering ,Shenyang University of Technology ), Sha HAO ( School of Electrical Engineering ,Shenyang
University of Technology )Conference Room 21 AB : Digital and IoT application in switchgear, Semi-conductor switching technology
Chairperson : Yasunobu Yokomizu ( Nagoya University )10:00 - 11:00, Oct. 15 (Tue)
M-1-1

Controlled Breaking Strategy of Shunt Reactor Based on Fast Vacuum Switch
Zhihui Huang ( School of electrical engineering, Dalian University of Technology , Pearl Electric Co., ltd. ), Wei Tan ( School of electricalengineering, Dalian University of Technology ), Qiwu Mao ( Pearl Electric Co., ltd. ), Lin Zou ( Electric Power Research Institute, CSG ),Jiyan Zou ( School of electrical engineering, Dalian University of Technology )M-1-2

A Digital Controller for Series of AC Contactors
Changkun Zhang ( College of Electrical Engineering and Automation, Fuzhou University , Fujian Province Key Laboratory of New Energy
Generation and Power Conversion ), Zhihong Xu ( College of Electrical Engineering and Automation, Fuzhou University , Fujian Province
Key Laboratory of New Energy Generation and Power Conversion , IEEE PES China Women in Engineering Committee )F-1-1

Study on Performance Optimization of IGCT Device for DC Circuit Breaker
Fanglin Chen ( Zhuzhou CRRC Times Electric Co., Ltd. ), Xuejun Pan ( Zhuzhou CRRC Times Electric Co., Ltd. ), Hong Zeng ( Zhuzhou
CRRC Times Electric Co., Ltd. ), Yongmin Chen ( Zhuzhou CRRC Times Electric Co., Ltd. ), Yi Wu ( Xi'an Jiaotong University ), Yifei
Wu ( Xi'an Jiaotong University ), Yi Jiang ( Zhuzhou CRRC Times Electric Co., Ltd. )F-1-2

Asynchronous Control Method of Parallel IGCT Components in Hybrid DC Circuit Breakers
Qiang Yi ( Xi'an Jiaotong University ), Fei Yang ( Xi'an Jiaotong University ), Yifei Wu ( Xi'an Jiaotong University ), Yi Wu ( Xi'an
Jiaotong University ), Mingzhe Rong ( Xi'an Jiaotong University ), Shijun Bai ( Xi’an XD High Voltage Apparatus Co., Ltd. )11:00 – 12:00
Mail Hall : DC switching technology
Chairperson : Kaveh Niayesh ( Norwegian University of Science and Technology )11:00 - 12:00, Oct. 15 (Tue)
E-2-1

Experimental Study on Commutation Parameter of HVDC Vacuum Circuit Breaker
ZIYING ZHANG ( School of electrical engineering, Dalian University of Technology ), MIAOZHONG CAI ( School of electricalengineering, Dalian University of Technology ), JIYAN ZOU ( School of electrical engineering, Dalian University of Technology ), ZHIHUIHUANG ( School of electrical engineering, Dalian University of Technology ), RUITONG LIU ( State Grid Liaoning Electric Power
Research Institute )E-2-2

Research on Composite Magnetic Field Contact of DC Vacuum Circuit Breaker and Its Arc Behavior
MIAOZHONG CAI ( School of electrical engineering, Dalian University of Technology ), ZIYING ZHANG ( School of electricalengineering, Dalian University of Technology ), JIYAN ZOU ( School of electrical engineering, Dalian University of Technology ), Zhihui
Huang ( School of electrical engineering, Dalian University of Technology ), Ruitong Liu ( State Grid Liaoning Electric Power ResearchInstitute )E-2-3

A Miniature DC switch Based on Liquid Metal Droplets
Xiaonan Zhu ( State Key Laboratory of Electrical Insulation and Power Equipment , Xi’an Jiaotong University ), Hang Lei ( State Key
Laboratory of Electrical Insulation and Power Equipment , Xi’an Jiaotong University ), Fei Yang ( State Key Laboratory of ElectricalInsulation and Power Equipment , Xi’an Jiaotong University ), Yifei Wu ( State Key Laboratory of Electrical Insulation and Power
Equipment , Xi’an Jiaotong University ), Yi Wu ( State Key Laboratory of Electrical Insulation and Power Equipment , Xi’an Jiaotong
University ), Mingzhe Rong ( State Key Laboratory of Electrical Insulation and Power Equipment , Xi’an Jiaotong University )26

E-2-4Current Limiting with Liquid arc for HVDC Circuit Breker
Xiuyang Ou ( Tokyo university of technology, Electrical and electronics department ), Tomoya Fujita ( Tokyo university of technology,
Electrical and electronics department ), Takumi Yokoyama ( Tokyo university of technology, Electrical and electronics department ),Yosuke Baba ( Tokyo university of technology, Electrical and electronics department ), Shota Tenjin ( Tokyo university of technology,
Electrical and electronics department ), Minoru Hara ( Tokyo university of technology, Electrical and electronics department ), Takeshi
Shinkai ( Tokyo university of technology, Electrical and electronics department ), Tadashi Koshizuka ( Tokyo denki university )International Conference Room : Operating mechanism in switchgear
Chairperson : Hitoshi Saito ( Meidensha Corporation )11:00 - 12:00, Oct. 15 (Tue)K-1-1

Simulation Research on Driving Technology and Influence Factors of Double-layer Coil Type Rapid Repulsive
Mechanism of 40.5kV Vacuum Circuit Breaker
Lijun Wang ( Xi’an Jiaotong University ), Jinwei Ma ( Xi’an Jiaotong University ), Jing Jiang ( Xi’an Jiaotong University ), Shenli Jia( Xi’an Jiaotong University ), Shengbin Wu ( Xi'an Xidian Electrical Research Institute Co., Ltd. ), Feng Pan ( Xi'an Xidian Electrical
Research Institute Co., Ltd. ), Haibo Su ( Electric power test and Research Institute, Guangzhou Power Supply Bureau Co., Ltd. ), Yong
Wang ( Electric power test and Research Institute, Guangzhou Power Supply Bureau Co., Ltd. )K-1-2

Design Method of Electromagnetic Mechanism for Vacuum Contactors by Using Twice Orthogonal Analyses
with Multi-Physical Simulation
Shaowei Liu ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Liqiong Sun ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Hui Ma ( State Key Laboratory of ElectricalInsulation and Power Equipment, Xi’an Jiaotong University ), Yingsan Geng ( State Key Laboratory of Electrical Insulation and Power
Equipment, Xi’an Jiaotong University ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong
University ), Jianhua Wang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University )K-1-3

A New Type Electromagnetic Repulsive Mechanism for 40.5 kV Vacuum Circuit Breaker
Kai Wang ( School of electrical engineering, Dalian University of Technology ), Xiang Zheng ( School of electrical and informationengineering, Dalian Jiaotong University ), Lin Zou ( Electric Power Research Institute, CSG ), Zhihui Huang ( School of electricalengineering, Dalian University of Technology ), Jiyan Zou ( School of electrical engineering, Dalian University of Technology )K-1-4

Development of VCB based on flexible multibody dynamics analysis
Jun Yeon Jo ( LSIS Co., Ltd. ), W. J. Park ( LSIS Co., Ltd. ), K.Y.Ahn ( LSIS Co., Ltd. ), Y.G.Kim ( LSIS Co., Ltd. )Conference Room 21 AB : Digital design and simulation in switchgear
Chairperson : Hajime Urai ( Hitachi, Ltd. )11:00 - 12:00, Oct. 15 (Tue)
I-1-1

Three-dimensional modeling and optimization analysis of internal electric field in 40.5 kV switchgear
Yanzhe Zhang ( Xi'an Jiaotong University ), Shixin Xiu ( Xi'an Jiaotong University ), Rui Li ( Xi'an Jiaotong University ), Tao Liu ( Xi'an
Jiaotong University ), Min Zhang ( Xi'an Jiaotong University ), Quan Li ( Xi'an Jiaotong University )I-1-2

Heat Dissipation Improvement of Medium-Voltage Switch-gear: Simulation Study and Experimental Validation
Zengbin Wang ( 1. Electric Power Research Institute, Guangdong Power Grid Co. Ltd.), Rui Wang ( 2. State Key Laboratory of ElectricalInsulation and Power Equipment, Xi’an Jiaotong University ), Chao Yan ( 2. State Key Laboratory of Electrical Insulation and Power
Equipment, Xi’an Jiaotong University ), Lijun Wang ( 2. State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong
University ), Ji Wu ( 1. Electric Power Research Institute, Guangdong Power Grid Co. Ltd. )I-1-3

Simulation Study on Wind Load and Mechanical Characteristics of High Voltage Dis-Connector
Liuhuo Wang ( Guangdong Power Grid Co. Ltd. ), Jinwei Ma ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an
Jiaotong University ), Xiaofeng Pang ( Electric Power Research Institute, Guangdong Power Grid Co. Ltd. ), Tong Jiang ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Lijun Wang ( State Key Laboratory of ElectricalInsulation and Power Equipment, Xi’an Jiaotong University ), Zengbin Wang ( Electric Power Research Institute, Guangdong Power Grid
Co. Ltd )27

I-1-4

Analysis of the Characteristics of Pressure Rise and Exhausted Hot Gas due to Internal Arc Faults in SF 6Insulated Power Equipment
Masashi Kotari ( Central Research Institute of Electric Power Industry , Nagoya University ), Tomo Tadokoro ( Central Research Instituteof Electric Power Industry ), Shin-ichi Tanaka ( Central Research Institute of Electric Power Industry ), Mikimasa Iwata ( Central ResearchInstitute of Electric Power Industry ), Hiroki Kojima ( Nagoya University ), Naoki Hayakawa ( Nagoya University )10:00 – 12:00
Conference Room 21 CD : Fundamental physics and electrical insulation
Chairperson : Hiroki Kojima ( Nagoya University ), Yasunori Tanaka ( Kanazawa University )10:00 - 12:00, Oct. 15 (Tue)
H-3-1

Breakdown Mechanism of Double Breaks in Air Under Lightning Impulse Voltage
Jiali Chen ( Xi’an Jiaotong University ), Jian’gang Ding ( Xi’an Jiaotong University ), Zhiyuan Liu ( Xi’an Jiaotong University ), Xiaofei
Yao ( Xi’an Jiaotong University ), Liqiong Sun ( Xi’an Jiaotong University ), Xue Liu ( Xi’an Jiaotong University ), Xiuguagn Li ( Ningxia
Electric Power Research Institute ), Feiyue Ma ( Ningxia Electric Power Research Institute ), Xiu Zhou ( Ningxia Electric Power ResearchInstitute ), Jianhua Wang ( Xi’an Jiaotong University )H-3-2

External Dielectric Performance of Various Vacuum Interrupter Envelope Constructions
Wangpei Li ( Eaton Co. ), Louis G Campbell ( Eaton Co. ), Daniel J Pruden ( Eaton Co. ), Xin Zhou ( Eaton Co. )H-3-3

Influence of Field Relaxation Ring Length on Vacuum Flashover Voltage in Model Sample of Vacuum
Interrupter
Ryutaro Kusa ( Saitama University ), Issei Fujita ( Saitama University ), Yasushi Yamano ( Saitama University ), Hideaki Fukuda( MEIDENSHA CORPORATION ), Kenta Yamamura ( MEIDENSHA CORPORATION )H-3-4

Experimental Investigation of Dielectric Strength and Thermal Stability of Micro-arc Oxidation Ceramic
Coating on Aluminum Winding
Lianke Wang ( Xi’an Jiaotong University ), Zehua Gao ( Xi’an Jiaotong University ), Li Lei ( Xi’an Jiaotong University ), Hui Ma ( Xi’an
Jiaotong University ), Yingsan Geng ( Xi’an Jiaotong University ), Zhiyuan Liu ( Xi’an Jiaotong University ), Jianhua Wang ( Xi’an Jiaotong
University )H-3-5

Evaluation of Creeping Flashover Characteristics of Dielectric-coated Vacuum Interrupter in Air
Chihiro Tateyama ( Toshiba Infrastructure Systems & Solutions Corporation ), Naoki Asari ( Toshiba Infrastructure Systems & Solutions
Corporation ), Akira Daibo ( Toshiba Infrastructure Systems & Solutions Corporation ), Hiromitsu Hirai ( Toshiba Infrastructure Systems& Solutions Corporation ), Takeshi Yoshida ( Toshiba Infrastructure Systems & Solutions Corporation )H-3-6

Microscopic Electric Field Enhancement on Contact Surface in Vacuum Interrupters with Contact Gap 1060mm
Yingyao Zhang ( Tongji University ), Wang Haoyu ( Tongji University ), Xu Xinye ( Tongji University ), Xu Xinye ( Tongji University ),Ma Manman ( Tongji University ), Yang He ( Electrical Sector APAC Eaton ), Hu Biao ( Electrical Sector APAC Eaton ), Wang Xiaojun( Shaanxi Sirui Advanced Material Co., Ltd )H-3-7

Simulation on the coupled Fluid-Mechanical Dynamic Analysis of High-voltage Self-blast circuit breakers
Jee-yong Park ( LSIS Co., Ltd ), Ming Cui ( LSIS Co., Ltd ), Chae-yoon Bae ( LSIS Co., Ltd ), Young-geun Kim ( LSIS Co., Ltd )H-3-8

Study on Thermo-Oxygen Aging Characteristics of Epoxy Resin Material
Xian Cheng ( Zhengzhou University , Henan Engineering Research Center of Power Transmission & Distribution Equipment andElectrical Insulation ), Shuo Chen ( Zhengzhou University , Henan Engineering Research Center of Power Transmission & Distribution
Equipment and Electrical Insulation ), Guo Wei Ge ( Zhengzhou University , Henan Engineering Research Center of Power Transmission& Distribution Equipment and Electrical Insulation )28

Conference Room 22 : Testing and measurement in switchgear
Chairperson : Tadashi Koshizuka ( Tokyo Denki University )10:00 - 11:30, Oct. 15 (Tue)J-2-1

Development and Test of a 252 kV Multi-breaks Bus-tie Fast Vacuum Circuit Breaker
Kui Ma ( State Key Laboratory of Electrical Insulation and Power Equipment ), Xiaofei Yao ( State Key Laboratory of Electrical Insulation
and Power Equipment ), Shaogui Ai ( State Grid Ningxia Electric Power Co., Ltd. ), Shuhong Wang ( State Key Laboratory of ElectricalInsulation and Power Equipment ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation and Power Equipment ), Jianhua Wang
( State Key Laboratory of Electrical Insulation and Power Equipment ), Bojian Zhang ( State Key Laboratory of Electrical Insulation andPower Equipment )J-2-2

Intermediate-frequency External Axial Magnetic Field for Current Interruption Experiment
Yuan Jiang ( University of Science and Technology Beijing ), Jianwen Wu ( Beihang University ), Bowen Jia ( Beihang University ), Ziang
Tong ( Beihang University ), Xiaowu Luo ( Beihang University ), Chao Xin ( ABB (China) Ltd. )J-2-3

Feature extraction of UHF PD signals based on diode envelope detection and linear discriminant analysis
Luyao Han ( State Key Laboratory of Electrical Insulation and Power Equipment ), Jing Yan ( State Key Laboratory of Electrical Insulation
and Power Equipment ), Shishi Fan ( State Key Laboratory of Electrical Insulation and Power Equipment ), Mengyuan Xu ( State Key
Laboratory of Electrical Insulation and Power Equipment ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation and Power
Equipment ), Yingsan Geng ( State Key Laboratory of Electrical Insulation and Power Equipment ), Chen Guan ( State Key Laboratory ofElectrical Insulation and Power Equipment )J-2-4

Mechanical Condition Assessment of High Voltage Circuit Breakers Based on Improved Dempster-Shafer
TheoryShishi Fan ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Jing Yan ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Luyao Han ( State Key Laboratory of ElectricalInsulation and Power Equipment, Xi'an Jiaotong University ), Mengyuan Xu ( State Key Laboratory of Electrical Insulation and Power
Equipment, Xi'an Jiaotong University ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong
University ), Yingsan Geng ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Chen Guan
( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University )J-2-5

Location of Breakdown Discharge of GIS Using Acoustic Signals
Wenjia Ma ( Shanghai Jiaotong University ), Fenghua Wang ( Shanghai Jiaotong University ), Song Zhang ( Shanghai Jiaotong University )J-2-6

DC Interruption of the Resistive Superconducting Current-limiting with Self-excited Oscillation Mechnical
Gas Circuit Breaker
Bin Xiang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Lei Gao ( State Key Laboratory
of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation andPower Equipment, Xi'an Jiaotong University ), Yingsan Geng ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an
Jiaotong University ), Jianhua Wang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ),Satoru Yanabu ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University )12:00 - 13:30

Lunch < Event Hall >29

13:30 - 15:00

Oral Sessions(*Note : 5 sessions will be held simultaneously)

Main Hall : DC switching technology
Chairperson : Yi Wu ( Xi'an Jiaotong University )13:30 - 15:00, Oct. 15 (Tue)
E-3-1

High-Frequency Current Interruption of Vacuum Interrupters in an Experimental DC Circuit Breaker
Nadew Adisu Belda ( KEMA Laboratories, Technische Universitat Darmstadt ), René Smeets ( KEMA Laboratories ), Roy Nijman ( KEMA
Laboratories ), Michalis Poikilidis ( DNV GL -Energy ), Cornelis Plet ( DNV GL -Energy )E-3-2

Dielectric Recovery of Ultrafast-Commutating Switches used for HVDC and Fault Current Limiting
Applications
Ali Kadivar ( Norwegian University of Science and Technology ), Kaveh Niayesh ( Norwegian University of Science and Technology )E-3-3

Rise Effect of DC Arc Voltage in Silica Sand: Various Interelectrode Distances and Arrangement of PA66Cylinder
Asato Takahashi ( Nagoya University ), Naoto Kodama ( Nagoya University ), Yasunobu Yokomizu ( Nagoya University ), Yusuke Kondo( Pacific Engineering Corporation )E-3-4

Numerical Analysis of Electrical Discharge in DC Switches Under External Circuit Parameter Variations
Kyung Sik Seo ( Sungkyunkwan University ), Myung Ki Baek ( Korea Electrotechnology Research Institute ), Il Han Park ( Sungkyunkwan
University )E-3-5

Arc Conductance and Contact Erosion in Liquid Nitrogen under DC Current Interruption
Hongxu Li ( Xi'an Jiaotong University ), Bin Xiang ( Xi'an Jiaotong University ), Junaid Muhammd ( Xi'an Jiaotong University ), Yingsan
Geng ( Xi'an Jiaotong University ), Zhiyuan Liu ( Xi'an Jiaotong University ), Jianhua Wang ( Xi'an Jiaotong University )E-3-6

Effects of Current Limiting Characteristics of Resistive Type Superconducting Fault Current Limiter on Flexible
DC Transmission System of Offshore Oil Production Platform
Jinkun Tu ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Bin Xiang ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Lei Gao ( State Key Laboratory of ElectricalInsulation and Power Equipment, Xi’an Jiaotong University ), Jianhua Wang ( State Key Laboratory of Electrical Insulation and Power
Equipment, Xi’an Jiaotong University ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong
University ), Yingsan Geng ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University )International Conference Room : Operating mechanism in switchgear
Chairperson : Yoshihiko Matsui ( Meidensha Corporation )13:30 - 14:45, Oct. 15 (Tue)K-2-1

Research on the Coordination of 40.5kV Fast Vacuum Switch Driven by Electromagnetic Repulsion Mechanismand Oil Damper
Jing Jiang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Lijun Wang ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University ), Jinwei Ma ( State Key Laboratory of ElectricalInsulation and Power Equipment, Xi'an Jiaotong University ), Shenli Jia ( State Key Laboratory of Electrical Insulation and Power
Equipment, Xi'an Jiaotong University ), Shengbin Wu ( Xi'an Xidian Electrical Research Institute Co., Ltd ), Feng pan ( Xi'an XidianElectrical Research Institute Co., Ltd ), Haibo Su ( Electric power test and Research Institute, Guangzhou Power Supply Bureau Co., Ltd ),Shengya Qiao ( Electric power test and Research Institute, Guangzhou Power Supply Bureau Co., Ltd )30

K-2-2

Influence of Moveable Mass on the Opening Velocity and Buffering Characteristics of Fast Vacuum Circuit
Breaker with a Gas Pressure Buffer
Chen Guan ( Xi'an Jiaotong University ), Dingyuan Peng ( Xi'an Jiaotong University ), Wen Shi ( Xi'an Jiaotong University ), Jiali Chen
( Xi'an Jiaotong University ), Bojian Zhang ( Xi'an Jiaotong University ), Jing Yan ( Xi'an Jiaotong University ), Xiaofei Yao ( Xi'an
Jiaotong University ), Zhiyuan Liu ( Xi'an Jiaotong University ), Yingsan Geng ( Xi'an Jiaotong University ), Jianhua Wang ( Xi'an Jiaotong
University )K-2-3

DC contactor energy conversion research
Jiahuan Gu ( Shenyang University of Technology, Shenyang ), Zhiyuan Cai ( Shenyang University of Technology, Shenyang ), Shaohua
Ma ( Shenyang University of Technology, Shenyang ), Yahong Zhang ( Shenyang Equipment Manufacturing Engineering School )K-2-4

Monitoring of Operating Speed of Electromagnetic Linear Actuator for Vacuum Circuit Breaker by using Search
Coil
Takayuki Kai ( Mitsubishi Electric Corporation ), Tomoko Tanabe ( Mitsubishi Electric Corporation ), Shintaro Yamada ( Mitsubishi
Electric Corporation ), Toshihiro Matsunaga ( Mitsubishi Electric Corporation )K-2-5

Optimization design of permanent magnet mechanism based on 6 Sigma design method
Qin Hao ( Xi'an Jiaotong University ), Guogang Zhang ( Xi'an Jiaotong University ), Lu Qi ( State Grid Jiangsu Power Company NanjingPower Supply Company ), Yakui Liu ( Xi'an Jiaotong University ), Jianhua Wang ( Xi'an Jiaotong University ), Yingsan Geng ( Xi'an
Jiaotong University )Conference Room 21 AB : Digital design and simulation in switchgear
Chairperson : Hao Sun ( Xi'an Jiaotong University )13:30 - 15:00, Oct. 15 (Tue)I-2-1

A Novel Method for Calculating Residual Magnetic Flux of DC Contactors
Baiqiang Li ( Shenyang University of Technology ), Shaohua Ma ( Shenyang University of Technology ), Zhiyuan Cai ( Shenyang
University of Technology ), Yahong Zheng ( Shenyang Equipment Manufacturing Engineering School )I-2-2

Relationship between arc behavior and parameters of the arc root model in the arc gas flow analysis
Misato Shibata ( Digital Platform Center, Digital Innovation Laboratory, Corporate R&D Headquarters, Fuji Electric Co., Ltd. ), Yoshiaki
Enami ( Digital Platform Center, Digital Innovation Laboratory, Corporate R&D Headquarters, Fuji Electric Co., Ltd. ), Masayoshi Sakata( Analysis Sec., Core Technology Dept., Development Group, Fuji Electric FA Components & Systems Co., Ltd. )I-2-3

Simulation Study on Current-zero Period Phenomenon and Analyse of High Voltage Gas Circuit Breakerh
Yuanjing Lu ( Xi'an XD Switchgear Electric Co., LTD ), Jin Guo ( Xi'an XD Switchgear Electric Co., LTD ), Xu Jiang ( China XDGroup Co., LTD )I-2-4

Fatigue evaluation and flexible multibody dynamic analysis of 550kV high voltage circuit breaker
Hyunwoo Kim ( Hyuundai electric & energy systems Co., LTD. )I-2-5

Evaluation of Dielectric Interruption Performance in Gas Circuit Breaker with Ablated PTFE/BN Vapor
Mami Kuroda ( Hitachi, Ltd. ), Hajime Urai (Hitachi, Ltd. ), Masanao Terada ( Hitachi, Ltd. ), Tatsuya Ishii ( Nagoya University ), Yuki
Kojima ( Nagoya University ), Yasunobu Yokomizu ( Nagoya University )I-2-6

Numerical Simulation of Residual Voltage Monitoring Device for 220 kV Metal Oxide Arresters
Guanghui Yu ( School of Electrical Engineering, Dalian University of Technology ), Yongxing Wang ( School of Electrical Engineering,
Dalian University of Technology ), Hao Zhu ( School of Electrical Engineering, Dalian University of Technology ), Enyuan Dong ( Schoolof Electrical Engineering, Dalian University of Technology ), Hanbing Li ( Anshan Power Supply Company State Grid Liaoning ElectricPower Co., Ltd. ), Guannan Liu ( Anshan Power Supply Company State Grid Liaoning Electric Power Co., Ltd. ), Renhan Liu ( Anshan
Power Supply Company State Grid Liaoning Electric Power Co., Ltd. )31

Conference Room 21 CD : Switching phenomena in vacuum
Chairperson : Yasushi Yamano ( Saitama University )13:30 - 15:00, Oct. 15 (Tue)
C-3-1

Experimental study on the influence of different opening speed on post-arc current in DCCB
Fengfeng Jiang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University), Hao Sun ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University), Yi Wu ( State Key Laboratory of Electrical Insulation
and Power Equipment, Xi’an Jiaotong University), Fei Yang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an
Jiaotong University), Chunping Niu ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University)

C-3-2

Comparison of Vacuum Arc Current Transfer Characteristics of a Novel AMF-TMF Contact under Different
Opening Velocities
Zihan Wang ( Xi'an Jiaotong University ), Yuanzhao Li ( Xi'an Jiaotong University ), Qifeng Zhang ( Xi'an Jiaotong University ), Hui Ma( Xi'an Jiaotong University ), Jianhua Wang ( Xi'an Jiaotong University ), Yingsan Geng ( Xi'an Jiaotong University ), Zhiyuan Liu ( Xi'an
Jiaotong University )C-3-3

Vacuum Arc Characteristics of a Novel Contact Consists of Arcing Contact and Main Contact
Yuanzhao Li ( Xi'an Jiaotong University ), Zihan Wang ( Xi'an Jiaotong University ), Qiming Li ( Xi'an Jiaotong University ), Yingsan
Geng ( Xi'an Jiaotong University ), Jianhua Wang ( Xi'an Jiaotong University ), Zhiyuan Liu ( Xi'an Jiaotong University ), Xiaomin Zhao
( Pinggao Group Co., Ltd. ), Yinghua Bi ( Pinggao Group Co., Ltd. )C-3-4

Evaluation of DC Interruption Performance of VCB in Various Electrode Materials
Akihiro Suwa ( MEIDENSHA CORPORATION ), Kazuya Kato ( MEIDENSHA CORPORATION ), Yoshihiko Matsui ( MEIDENSHACORPORATION ), Masayuki Sakaki ( MEIDENSHA CORPORATION )C-3-5

Numerical Modelling of Vapor Dynamics in Vacuum Arcs between Electrodes with Metal Shield Wall using
Moving Particle Method
Takamitsu Miyazaki ( Kanazawa University ), Yasunori Tanaka ( Kanazawa University ), Yusuke Nakano ( Kanazawa University ),Yoshihiko Uesugi ( Kanazawa University ), Tatsuo Ishijima ( Kanazawa University ), Gaku Asanuma ( Fuji Electric Co., Ltd. ), Toshiyuki
Onchi ( Fuji Electric Co., Ltd. )C-3-6

Investigation on the Influence of Non-Synchronous Magnetic Field Control on the Dynamic Voltage
Distribution of Vacuum Circuit Breakers in Series
Yifan Fu ( School of Electrical Engineering, Dalian University of Technology,China ), Minfu Liao ( School of Electrical Engineering,
Dalian University of Technology,China ), Hao Zhang ( School of Electrical Engineering, Dalian University of Technology,China ), Huaqing
Dong ( School of Electrical Engineering, Dalian University of Technology,China ), Xiaoli Zhang ( State Grid Dalian Power Supply
Company, China ), Lu Jiang ( Hydropower Branch Maintenance Center, State Grid Hunan Electric Power Co. Ltd., China )Conference Room 22 : Testing and measurement in switchgear
Chairperson : Yongxing Wang ( Dalian University of Technology )13:30 - 14:30, Oct. 15 (Tue)
J-3-1

The formation mechanism and reaction pathways of SOF2, SO2F2, SO2 and HF under local overheating fault in
SF6 insulated power equipment
Mengyuan Xu ( State Key Laboratory of Electrical Insulation and Power Equipment ), Luyao Han ( State Key Laboratory of ElectricalInsulation and Power Equipment ), Jing Yan ( State Key Laboratory of Electrical Insulation and Power Equipment ), Yingsan Geng ( StateKey Laboratory of Electrical Insulation and Power Equipment ), Chen Guan ( State Key Laboratory of Electrical Insulation and Power
Equipment )J-3-2

Study of Condition Monitoring by Operating Sound Diagnosis for Circuit Breaker in Substation
Toshifumi Sugimoto ( Chubu Electric Power Co.,Inc., Electric Power Research & Development Center ), Masahito Shimizu ( Chubu ElectricPower Co.,Inc., Electric Power Research & Development Center )32

J-3-3

Investigation of TRV Measurement for SLF Artificial Line
Kyoya Nonaka ( Tokyo Denki University ), Tadashi Koshizuka ( Tokyo Denki University ), Takeshi Shinkai ( Tokyo University ofTechnology ), Eiichi Haginomori ( The University of Tokyo ), Hisatoshi Ikeda ( The EPRI International )J-3-4

Principles and Parameter Calculation of 1200 kV UHV Synthetic Test Circuit
Delin Hu ( Suzhou Electrical Apparatus Science Research Institute Co, Ltd ), Min Zhang ( Suzhou Electrical Apparatus Science ResearchInstitute Co, Ltd )15:15 - 18:00

Conference Tour<(A):YASKAWA ELECTRIC CORPORATION factory tour, (B):Kitakyushu city tour>
Bus departure time : 15:15

18:40 - 21:30

Banquet < Art Hotel Kokura New Tagawa >Welcome drink will be served from 18:00

Date : Wednesday, October 16th, 201908:30 - 15:00

Registration< Public Lounge of Kitakyushu International Conference Center >08:45 - 09:45

Oral Sessions (*Note : 4 sessions will be held simultaneously)

Main Hall : Others
Chairperson : Eiji Kaneko ( University of the Ryukyus )8:45 - 9:45, Oct. 16 (Wed)
N-2-1

Experimental Study on the Mechanical Endurance of Vacuum Interrupter Bellows Subjected to High Gas
Pressure and High Opening Velocity
Xue Liu ( State Key Laboratory of Electrical Insulation and Power Equipment ), Lixin Hong ( State Key Laboratory of Electrical Insulation
and Power Equipment ), Xiaofei Yao ( State Key Laboratory of Electrical Insulation and Power Equipment ), Liqiong Sun ( State Key
Laboratory of Electrical Insulation and Power Equipment ), Zhiyuan Liu ( State Key Laboratory of Electrical Insulation and Power
Equipment ), Jianhua Wang ( State Key Laboratory of Electrical Insulation and Power Equipment ), Yingsan Geng ( State Key Laboratory
of Electrical Insulation and Power Equipment )N-2-2

The influence of the thickness of the insulation paper to the Oil-paper electrical strength in the high altitude area
Yufeng Shen ( Qinghai University ), Bing Luo ( The Company of South Gird of China ), Tingting Wang ( The Company of South Gird of
China ), Chao Gao ( The Company of South Gird of China )N-2-3

Novel and Necessary Applications of Plasma and Terahertz Technology in Electric Power System
Yang Liu ( Shaanxi Electric Power Research Institute of SGCC )N-2-4

Influence of Metallic Particles on Flashover Characteristics of Basin-type Insulator Under DC Voltage in
GIS/GIL
Wei LI ( School of Electrical Engineering, Shenyang University of Technology ), Wenjie WANG ( School of Electrical Engineering,
Shenyang University of Technology ), Xin LIN ( School of Electrical Engineering, Shenyang University of Technology ), Liucheng HAO( PingGao Group Co., Ltd, Pingdingshan ), Fan GE ( School of Electrical Engineering, Shenyang University of Technology ), Xiaolong LI( School of Electrical Engineering, Shenyang University of Technology )33

International Conference Room : DC switching technology
Chairperson : Tadashi Koshizuka (Tokyo Denki University )8:45 - 9:45, Oct. 16 (Wed)E-4-1

Arc extinction structure of air circuit breaker for DC system
IlHyun Kim ( LSIS Co., Ltd. ), S. C. Lee ( LSIS Co., Ltd. ), W. J. Park ( LSIS Co., Ltd. ), K. Y. Ahn ( LSIS Co., Ltd. ), G. Kim ( LSIS Co.,
Ltd. )

E-4-2

Axial Magnetic Field in Coil Type Vacuum Interrupter at High Frequency Breaking Current
Shuheng Dan ( Shanghai University of electric power ), Ruchun Li ( Shanghai University of electric power )E-4-3

Current Sharing Characteristics Study of Parallel IGCTs Module in a DC Circuit Breaker
Yifei Wu ( State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong
University ), Zhihui Zhang ( State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an
Jiaotong University ), Yi Wu ( State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an
Jiaotong University ), Mingzhe Rong ( State Key Laboratory of Electrical Insulation and Power Equipment, School of ElectricalEngineering, Xi’an Jiaotong University ), Fei Yang ( State Key Laboratory of Electrical Insulation and Power Equipment, School ofElectrical Engineering, Xi’an Jiaotong University ), Nan Shi ( Xi’an XD High Voltage Apparatus Co., Ltd ), Lincui Zeng ( Xi’an XD High
Voltage Apparatus Co., Ltd )E-4-4

Development and testing of EHV mechanical DC circuit breaker
Sho Tokoyoda ( Mitsubishi Electric Corporation ), Takashi Inagaki ( Mitsubishi Electric Corporation ), Hitoshi Sadakuni ( Mitsubishi
Electric Corporation ), Tadao Minagawa ( Mitsubishi Electric Corporation ), Daisuke Yoshida ( Mitsubishi Electric Corporation ), Hiroki
Ito ( Mitsubishi Electric Corporation )Conference Room 21 AB : Switching phenomena in vacuum
Chairperson : Zhiynan Liu ( Xi'an Jiaotong University )8:45 - 9:45, Oct. 16 (Wed)C-4-1

Detecting Vacuum Degree Condition of Vacuum Interrupter by Partial Discharge Measurement
Achmad Syerif Habibie ( PT PLN (Persero) ), M. Hikita ( Kyushu Institute of Technology ), M. Kozako ( Kyushu Institute of Technology ),Y. Nakano ( Kyushu Institute of Technology ), Suwarno ( Institut Technology Bandung ), U. Khayam ( Institut Technology Bandung ), M.
Kobayashi ( Hitachi Industrial Equipment Systems Co. Ltd. )C-4-2

Study on Dielectric Recovery Characteristic of Vacuum Interrupter after High Frequency Interruption
Yu Xiao ( State Key Laboratory of Electrical Insulation and Power Equipment，Xi'an Jiaotong University ), Yi Wu ( State Key Laboratory
of Electrical Insulation and Power Equipment，Xi'an Jiaotong University ), Yifei Wu ( State Key Laboratory of Electrical Insulation andPower Equipment，Xi'an Jiaotong University ), Fei Yang ( State Key Laboratory of Electrical Insulation and Power Equipment，Xi'an
Jiaotong University ), Mingzhe Rong ( State Key Laboratory of Electrical Insulation and Power Equipment，Xi'an Jiaotong University ),Yuan Wei ( State Key Laboratory of Electrical Insulation and Power Equipment，Xi'an Jiaotong University ), Sunhonghao Peng ( State Key
Laboratory of Electrical Insulation and Power Equipment，Xi'an Jiaotong University )C-4-3

Interruption Characteristics of a 40.5 kV Vacuum Circuit Breaker Used for the Current Limiter
Zhe Yang ( Xi'an XD Electric Research Institute Co., Ltd. ), Xu Jiang ( Xi'an XD Electric Research Institute Co., Ltd. ), Shengbin Wu( Xi'an XD Electric Research Institute Co., Ltd. ), Haojun Liu ( Xi'an XD Electric Research Institute Co., Ltd. ), Liing Yan ( Xi'an XD
Electric Research Institute Co., Ltd. )C-4-4

Research on Intermediate-frequency Vacuum Arc and Voltage Characteristics of Sinusoidal Curved Contact
Ziang Tong ( School of Automation Science and Electrical Engineering, Beihang University ), Jianwen Wu ( School of Automation Scienceand Electrical Engineering, Beihang University ), Miao Cheng ( School of Automation Science and Electrical Engineering, Beihang
University ), Yuan Jiang ( School of Automation Science and Electrical Engineering, Beihang University ), Bowen Jia ( School ofAutomation Science and Electrical Engineering, Beihang University )34

Conference Room 21 CD : Switching phenomena in SF6 gas
Chairperson : Mingzhe Rong ( Xi'an Jiaotong University )8:45 - 9:45, Oct. 16 (Wed)A-1-1

Hybrid Thermofluid Simulation with Chemically Non-Equilibrium and Equilibrium Calculations for Decaying
SF6 Arcs
Yasunori Tanaka ( Kanazawa University ), Takanori Iijima ( Toshiba Energy Systems & Solutions Corporation )A-1-2

Critical Electric-Field Strength of High-Temperature SF6 Mixture Gas with Ablated PTFE/BN Vapor at
Temperatures of 300-4000 K
Tatsuya Ishii ( Nagoya University ), Masanao Terada ( Nagoya University, Hitachi, Ltd. ), Yasunobu Yokomizu ( Nagoya University ),Yuuki Kojima ( Nagoya University ), Mami Kuroda ( Hitachi, Ltd. ), Hajime Urai ( Hitachi, Ltd. )A-1-3

Research on the Pressure Characteristics of 550kV Single-Break Self-Blasting Circuit Breaker during the
Breaking Process
Ruisong Li ( School of Electrical Engineering，Shenyang University of Technology ), Xin Lin ( School of Electrical Engineering，Shenyang
University of Technology ), Yu Song ( School of Electrical Engineering，Shenyang University of Technology ), Jianyuan Xu ( School ofElectrical Engineering，Shenyang University of Technology ), Yalong Xia ( School of Electrical Engineering，Shenyang University ofTechnology ), Zhenxin Geng ( School of Electrical Engineering，Shenyang University of Technology )A-1-4

Investigations on the Thermal Interrupting Capability of A Self-blast Type SF6 Circuit Breaker
Jin Guo ( Xi'an XD Electric Research Institute Co., Ltd. ), Xu Jiang ( China XD Group Co., Ltd. ), Wenjuan Du ( Xi'an XD Electric ResearchInstitute Co., Ltd. ), Yuanjing Lu ( Xi'an XD Electric Research Institute Co., Ltd. ), Haibin Wang ( Xi'an XD Electric Research InstituteCo., Ltd. )09:45 - 10:00

Coffee Break < Sub entrance hall >10:00 - 12:00

Oral Sessions (*Note : 5 sessions will be held simultaneously)

Main Hall : Others
Chairperson : Masahiro Kozako ( Kyushu Institute of Technology )10:00 - 11:30, Oct. 16 (Wed)N-3-1

A Novel Method of Suppressing VFTO in GIS -Spiral Tube Damping Bus-bar
Chao Li ( State Key Laboratory of Power Grid Environmental Protection, Wuhan University of Technology, School of Automation ), XiXiu
Wu ( State Key Laboratory of Power Grid Environmental Protection, Wuhan University of Technology, School of Automation ), Xin Yang
( State Key Laboratory of Power Grid Environmental Protection, Wuhan University of Technology, School of Automation ), Yu Feng ( StateKey Laboratory of Power Grid Environmental Protection ), Huan Wang ( State Key Laboratory of Power Grid Environmental Protection ),Hui Hou ( State Key Laboratory of Power Grid Environmental Protection, Wuhan University of Technology, School of Automation )N-3-2

Study on the spatial radiation EMI characteristics of GIS caused by disconnector operation
Xin Yang ( State Key Laboratory of Power Grid Environmental Protection , Wuhan University of Technology, School of Automation ),Xixiu Wu ( State Key Laboratory of Power Grid Environmental Protection , Wuhan University of Technology, School of Automation ), Jin
Qiu ( State Key Laboratory of Power Grid Environmental Protection ), Chao Li ( State Key Laboratory of Power Grid Environmental
Protection , Wuhan University of Technology, School of Automation ), Bo Wen ( State Key Laboratory of Power Grid Environmental
Protection , Wuhan University of Technology, School of Automation ), Hui Hou ( State Key Laboratory of Power Grid Environmental
Protection , Wuhan University of Technology, School of Automation ), Tao Yang ( Electric Power Research Institute of Guizhou Power
Grid Co., Ltd ), Liang Huang ( Electric Power Research Institute of Guizhou Power Grid Co., Ltd )35

N-3-3

Design of circuit breaker monitoring system based on MODBUS protocol in Delphi compiler environment
Zheyuan Pang ( School of Electrical Engineering, Shenyang university of technology, China ), Zhiyuan Cai ( School of ElectricalEngineering, Shenyang university of technology, China ), Shaohua Ma ( School of Electrical Engineering, Shenyang university oftechnology,China ), Yahong Zheng ( Shenyang Equipment Manufacturing Engineering School, China )N-3-4

Application of Disc Insulators for Electric Power Equipment in Pulse Power Technology
Xiaohong Chi ( Xi’an Jiaotong University ), Haiyang Wang ( Northwest Institute of Nuclear Technology ), Zihan Xi ( Xi’an Jiaotong
University ), Jianhong Zhang ( Motic Electric Group Co., Ltd., China ), Wenfeng Liu ( Xi’an Jiaotong University )N-3-5

Electron Impact Ionization, Attachment, Drift Velocities and Longitudinal Diffusion of SCN 2 at the Critical
Point 127K and 3.4MPa
Dai XInlongi ( Harbin University of Science and Technology ), Chen Cuntian ( Harbin University of Science and Technology ), Wei
Hongqing ( State Grid Zhejiang haiyan Country Power Limited Corporation ), Zhu Hanan ( Harbin Institute of Petroleum ), Liu Zhiyong( New Northeast Electric Group High Voltage Switchgear Co., Ltd. ), Zheng Dianchun ( Harbin University of Science and Technology ),Zhao Shufen ( Harbin University of Science and Technology )N-3-6

Residual Magnetic Flux in High Resistance Grounding System
Yukihiko Himata ( Tokyo Denki University ), Tadashi Koshizuka ( Tokyo Denki University ), Kunihiko Hidaka ( Tokyo Denki University )International Conference Room : DC switching technology
Chairperson : Hiroki Ito ( Mitsubishi Electric Corporation )10:00 - 11:15, Oct. 16 (Wed)
E-5-1

The Analysis of Low-Voltage DC Arc behavior on Three Interrupting Phases Based on AC Black-box Arc
model
Kyu-Hoon Park ( Hanyang University ), Ho-Yun Lee ( Hanyang University ), Bang-Wook Lee ( Hanyang University )E-5-2

High Voltage Gradient ZnO-Based Varistors from ZnO Nano-powders for DC Current Switching Application
Xiangjun Zeng ( National Engineering Laboratory for Ultra High Voltage Engineering Technology ), Wenfeng Liu ( State Key Laboratory
of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Lei Zhang ( State Key Laboratory of Electrical Insulation andPower Equipment, Xi’an Jiaotong University ), Zhi Wang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an
Jiaotong University ), Shengtao Li ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ),Fuzeng Zhang ( National Engineering Laboratory for Ultra High Voltage Engineering Technology ), Tingting Wang ( National Engineering
Laboratory for Ultra High Voltage Engineering Technology ), Yifan Liao ( National Engineering Laboratory for Ultra High Voltage
Engineering Technology )E-5-3

Design of bistable permanent magnet-repeat mechanism for medium voltage DC high speed switch
Xiaomin Zhao ( State Grid Pinggao Group Co., LTD ), Mingfei Wang ( State Grid Pinggao Group Co., LTD ), Yi Wu ( State Key Laboratory
of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Yu Xiao ( State Key Laboratory of Electrical Insulation andPower Equipment, Xi’an Jiaotong University ), Yifei Wu ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an
Jiaotong University ), Xiao Gu ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Wenkui
Liu ( State Grid Pinggao Group Co., LTD )E-5-4

Analysis on the Influence of Stray Inductance on Overvoltage of Hybrid DC Circuit Breaker During Breaking
Process
Yaxiong Tan ( Department of Electrical Engineering, Chongqing University ), Shushan Luo ( Department of Electrical Engineering,
Chongqing University ), Weigen Chen ( Department of Electrical Engineering, Chongqing University ), Lin Du ( Department of ElectricalEngineering, Chongqing University ), Han Yan ( Department of Electrical Engineering, Chongqing University )E-5-5

An Experimental Study on Arc Discharge Occured by Breaking of Line in Low-Voltage PV Systems
Akihiro Tsusaka ( Aichi Institute of Technology ), Toshiya Yokoi ( Aichi Institute of Technology ), Toshiro Matsumura ( Aichi Institute ofTechnology ), Kazuto Yukita ( Aichi Institute of Technology ), Yasuyuki Goto ( Aichi Institute of Technology ), Atsushi Miyamoto ( Nitto
Kogyo Corporation ), Hiroyuki Ito ( Nitto Kogyo Corporation )36

Conference Room 21 AB : Electrical contacts
Chairperson : Gaku Asanuma( Fuji Electric Co., Ltd. )10:00 - 11:15, Oct. 16 (Wed)
L-1-1

An Experimental Study on Contact Dynamic Welding under Different Contact Materials and Surrounding
Atmospheres in HVDC
Wenxuan Liu ( State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic
Engineering, Huazhong University of Science and Technology ), Yuan Liao ( State Key Laboratory of Advanced Electromagnetic
Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology ), Lin Jiao
( State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering,
Huazhong University of Science and Technology ), Xiaoping Bai ( Fuda Alloy Material Limited by Share Ltd. ), Ruxin Feng ( Zhongxi
Group Co., Ltd. ), Zhenbiao Li ( State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical andElectronic Engineering, Huazhong University of Science and Technology), Makoto Hasegawa ( Chitose Institute of Science andTechnology )L-1-2

Comparative study on the erosion mechanism of W70Cu30 anode in DC gaseous arcs
Yufei Cui ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Yi Wu ( State Key Laboratory
of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Mingzhe Rong ( State Key Laboratory of Electrical Insulation
and Power Equipment, Xi’an Jiaotong University ), Haodong Chang ( State Key Laboratory of Electrical Insulation and Power Equipment,
Xi’an Jiaotong University ), Weiping Guan ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong
University )L-1-3

Simulation of Cathode Spots Crater Formation on Zirconium electrode
Xiao Zhang ( Xi’an Jiaotong University ), Lijun Wan ( Xi'an Jiantong University ), Sheli Jia ( Xi'an Jiantong University ), D L Shmelev( Institute of Electrophysics )L-1-4

Investigate of electrical performance of CuCr30 manufactured by three different ways
Kai Liu ( shaanxi sirui advanced material Co., Ltd ), Peng Li ( shaanxi sirui advanced material Co., Ltd ), Shi SongZhang ( shaanxi siruiadvanced material Co., Ltd ), Xiaojun Wang ( shaanxi sirui advanced material Co., Ltd ), Bin Yang ( shaanxi sirui advanced material Co.,Ltd ), Gang Li ( shaanxi sirui advanced material Co., Ltd ), Xiao Yun Shi ( shaanxi sirui advanced material Co., Ltd ), Xiao juan Zhu( shaanxi sirui advanced material Co., Ltd )L-1-5

Theoretical Derivation of Current Commutation Process during Electrical-Contact Sliding Movement in Model
DC Motor
Yosuke Ogura ( Nagoya University ), Yasunobu Yokomizu ( Nagoya University ), Takashi Fukutsuka ( Nagoya University ), Kazuya
Oshima ( Nagoya University )Conference Room 21 CD : Switching phenomena in SF6 gas
Chairperson : Bang-Wook Lee ( Hanyan University ), Motohiro Sato ( Mitsubishi Electric Corporation )10:00 - 12:00, Oct. 16 (Wed)
A-2-1

Investigation of Ablation Gas Transportation with Optical Emission Spectroscopy for Gas Circuit Breaker
Toshiaki Sakuyama ( Hitachi, Ltd. ), Hiroyuki Kobayashi ( Hitachi, Ltd. ), Hideyuki Kotsuji ( Hitachi, Ltd. ), Katsuhiko Shiraishi ( Hitachi,Ltd. ), Hajime Urai ( Hitachi, Ltd. )A-2-2

Evaluation of Gas Flow by Multi-point Pressure Measurement using a Self-blast Gas Circuit Breaker Model
Hideyuki Kotsuji ( Hitachi, Ltd. ), Toshiaki Sakuyama ( Hitachi, Ltd. ), Masanori Terada ( Hitachi, Ltd. ), Hajime Urai ( Hitachi, Ltd. )A-2-3

Improvement of Dielectric Recovery Performance for Self blast Circuit Breaker
Myounghoo Kim ( ILJIN Electric ), Kyonghoe Kim ( ILJIN Electric ), Hojung Jeong ( ILJIN Electric ), Amer Smajkic ( EnergoBos ILJIN
d.o.o , University of Sarajevo ), Mahir Muratovic ( EnergoBos ILJIN d.o.o , University of Sarajevo ), Mirsad Kapetanovic ( EnergoBos
ILJIN d.o.o , University of Sarajevo )A-2-4

Sensitivity of dynamic resistance of gas circuit breakers to the arc-induced contact erosion
Milad Mohammadhosein ( University of Tehran ), kaveh Niayesh ( University of science and technology, NTNU ), Amir Abbas Shayegani
Akmal ( University of Tehran ), Hossein Mohseni ( University of Tehran )37

A-2-5

Influence of arcing contacts erosion on decomposition products under arc discharge in SF 6 circuit breaker
Ren Yang ( SGCC Shaanxi Electric Power Research Institute ), Mengyuan Xu ( State Key Laboratory of Electrical Insulation and Power
Equipment ), Jing Yan ( State Key Laboratory of Electrical Insulation and Power Equipment ), Yingsan Geng ( State Key Laboratory ofElectrical Insulation and Power Equipment )A-2-6

Temperature rise prediction of conductor and enclosure in a GIS component considering contact resistance
Jeong Ahn Ko ( Hyosung Corporation ), Seungbo Lee ( Hyosung Corporation ), Gwang Hyeon Ryu ( Hyosung Corporation ),Seung Boong Jeong ( Hyosung Corporation )A-2-7

Design of Dual Motion Mechanism Moving along Optimized Stroke Curve to Improve Capacitive Current
Switching Performance for Gas Circuit Breaker
Masanao Terada ( Hitachi, Ltd, R & D Group , Department of Electrical Engineering, Nagoya University ), Yuki Nakai ( Hitachi, Ltd,Power Business Unit ), Hiroaki Hashimoto ( Hitachi, Ltd, R & D Group ), Daisuke Ebisawa ( Hitachi, Ltd, Power Business Unit ), Hajime
Urai ( Hitachi, Ltd, R & D Group ), Yasunobu Yokomizu ( Department of Electrical Engineering, Nagoya University )A-2-8

Numerical Calculation and Analysis of UHV GIL HSGS during Breaking Process
Ying Zhu ( School of Electrical Engineering,Shenyang University of Technology ), Xin Lin ( School of Electrical Engineering,Shenyang
University of Technology ), Jia Zhang ( School of Electrical Engineering,Shenyang University of Technology ), Shengwu Tan ( Pinggao
Group Co., Ltd. ), Yu Song ( School of Electrical Engineering,Shenyang University of Technology ), Yingjie Sun ( Pinggao Group Co.,
Ltd. )

Conference Room 22 : Switching phenomena in air
Chairperson : Yuki Inada ( Saitama University )10:00 - 11:45, Oct. 16 (Wed)
D-1-1

Air Arc Squeezed into Insulating Slits - AC/DC Interruption
Tengyu Huo ( State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong
University ), Chunping Niu ( State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an
Jiaotong University), Hailong He ( State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering,
Xi’an Jiaotong University), Yi Wu ( State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering,
Xi’an Jiaotong University), Longlong Wang ( State Key Laboratory of Electrical Insulation and Power Equipment, School of ElectricalEngineering, Xi’an Jiaotong University), Mingzhe Rong ( State Key Laboratory of Electrical Insulation and Power Equipment, School ofElectrical Engineering, Xi’an Jiaotong University)

D-1-2

Simulation of free burning arcs and arcs Inside Cylindrical Tubes initiated by exploding wires
Ali Kadivar ( Norwegian University of Science and Technology, NTNU ), Kaveh Niayesh ( Norwegian University of Science andTechnology, NTNU )D-1-3

Thermodynamic and Transport Characteristics of High Temperature Atmospheric Air Arcs containing Two
Different Metal Vapor of Cu, Fe and Al
Yusuke Nakano ( Kanazawa University ), Yasunori Tanaka ( Kanazawa University ), Yoshihiko Uesugi ( Kanazawa University ), Tatsuo
Ishijima ( Kanazawa University )D-1-4

Arc Plasma Simulation Method in DC Relay with Contact Opening Process
Keyao Huang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University), Chunping Niu ( State Key
Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University), Yi Wu ( State Key Laboratory of Electrical Insulation
and Power Equipment, Xi'an Jiaotong University), Rong Mingzhe ( State Key Laboratory of Electrical Insulation and Power Equipment,
Xi'an Jiaotong University), Fei Yang ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University), Hao
Sun ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University)

D-1-5

Optimization of Breaking Speed for Miniature Circuit Breakers Using Improved Particle Swarm Optimization
Algorithm
Zhihong Xu ( College of Electrical Engineering and Automation, Fuzhou University, IEEE PES China Women in Engineering Committee ),Mingjie Shi ( College of Electrical Engineering and Automation, Fuzhou University )38

D-1-6

Calculation of the switch arc in low voltage circuit breaker considering the interaction between the contact
movement and the arc force
Hao Sun ( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Hyun-Woo Joo ( LSIS), Yi Wu( State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Mingzhe Rong ( State Key Laboratory
of Electrical Insulation and Power Equipment, Xi’an Jiaotong University ), Chae-Yoon Bae ( LSIS ), Young-Geun Kim ( LSIS )D-1-7

3D Simulation of Air Arc in the Molded Case Circuit BreakerKeewon Kim ( LSIS Co., Ltd ), Hyun Woo Joo ( LSIS Co., Ltd ), Chae Yoon Bae ( LSIS Co., Ltd ), Jongung Choi ( LSIS Co., Ltd ), Young
Geun Kim ( LSIS Co., Ltd )12:00 - 13:30

Lunch < Every room >13:30 - 15:30

Poster Sessions <Event Hall>

15:30 - 16:00

Coffee Break < Sub entrance Hall >16:00 - 16:45

Invited Lecture 2< Main Hall >Chairperson : Eiji Kaneko (University of the Ryukyus)
IL-2

Recent Insulation and diagnostic technology in power apparatus and power electronics(Prof. Masayuki Hikita, Kyushu Institute of Technology, Japan)

16:45 - 17:30

Closing Ceremony < Main Hall >39

Acknowledgement to Reviewers
We gratefully acknowledge the assistance of the following people, who reviewed papers for thisconference.

Junzo Kida (Hitachi, Ltd.)
Toshiaki Rokunohe (Hitachi, Ltd.)
Takashi Sato (Hitachi, Ltd.)
Katsuhiko Shiraishi (Hitachi, Ltd.)
Masanao Terada (Hitachi, Ltd.)
Shin-ichi Tanaka (Central Research Institute of Electric Power Industry)
Yutaka Goda (Central Research Institute of Electric Power Industry)
Katsuhiko Horinouchi (Mitsubishi Electric Corporation)
Taiki Donen (Mitsubishi Electric Corporation)
Shinya Watanabe (Mitsubishi Electric Corporation)
Manabu Yoshimura (Mitsubishi Electric Corporation)
Sho Tokoyoda (Mitsubishi Electric Corporation)
Takayuki Kai (Mitsubishi Electric Corporation)
Katsuki Hotta (Mitsubishi Electric Corporation)
Toshiyuki Onchi (Fuji Electric Co., Ltd.)
Hirotaka Torii (Fuji Electric Co., Ltd.)
Shuichi Sugiyama (Fuji Electric Co., Ltd.)
Masayuki Sakaki (Meidensha Corporation)
Yoshihiko Matsui (Meidensha Corporation)
Akiko Kumada (The University of Tokyo)
Shuhei Nakata (Kanazawa Institute of Technology)
Yoji Fujita (Kanazawa Institute of Technology)
Tadashi Mori (Toshiba Energy Systems & Solutions Corporation)
Toshiyuki Uchii (Toshiba Energy Systems & Solutions Corporation)
Toshihiro Hoshino (Toshiba Energy Systems & Solutions Corporation)40

Sponsors

Sponsored by
Nagoya University
City of Kitakyushu
Kitakyushu Convention & Visitors Association

Technically Co-sponsored byIEEE-Power and Energy Society

Supported by
Kyushu Institute of Technology
IEEJ (The Institute of Electrical Engineers of Japan)
Technical Committee on Switching and Protecting Engineering, IEEJTechnical Committee on Switching & Protecting Engineering, IEEJ

Correspondence
Address :Office of Local Organizing Committee of ICEPE-ST 2019,
c/o Yokomizu Laboratory
Department of Electrical Engineering,
Graduate School of Engineering,
Nagoya University,
Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8603 Japan
E-mail: icepe2019@dune.ocn.ne.jp

41Sponsored byTechnical Co-sponsored by

Supported by

TC on Switching andProtecting Engineering, IEEJ