Doc. No.IDE148002

Togami Electric Mfg. Co., Ltd.

Compact Unit Substation
24kV SF6 insulated RMU + 500 kVA Distribution Transformer + LV compartment

Ring Main Unit
LBSLBS

LBS w/ HRC Fuse

Metering unit
Accuracy:±1.0 %Distribution Transformer
24 kV

416/240 V

KNAN

Dyn1500 kVA

Low Voltage Compartment
Incoming
MCCB×1Outgoing
MCCB×61

Voltmeter
Accuracy:±1.5 %Ammeter w/ Demand indicator
Accuracy:±1.0 %/±3.0 %/Togami Electric Mfg. Co., Ltd.

The Slim Size Advantage
Secure a space for pedestrians

2,700 mm

Side walk

Total mass: 5,000 kg2CUS
Road way

Less than 1 m

990 mmTogami Electric Mfg. Co., Ltd.

The Slim Size Advantage
Typical minimum width in an urban area.

2,300mm
990mm

1,310mm2,300mm1,200mm 1,100mm

750mm

CUS type Ⅲ

31,000mm

1,000mmOther types

Togami Electric Mfg. Co., Ltd.

ALL-IN-ONE Package
MV network

LV network

24 kV

416/240 V

Compact Unit Substation
RMU

Distribution Transformer

LV compartment

500 kVA×

MV SideCurrent measuring
Voltage measuring
To Other Customers

4

LV SideCurrent measuring
Voltage measuring

××××××To Your Premises

Togami Electric Mfg. Co., Ltd.

Reliable Support for The Product

Our branch@ Bangkok

We, Togami manufacture CUS in cooperation with PRECISE.

5Togami Electric Mfg. Co., Ltd.

SCADA-Ready RMUController of RMU

INGEPACTM DA PT by
Multifunction protection IEDFunctionsOvercurrent, voltage, power and frequency functions

51LR locked rotor, 37, 66,
Motor protection functions

Inhibition due to excessive number of pick-ups,
48 protection against excessive starting times

Native platform

IEC 61850

PRP, HSR and link failover redundancy
Automatisms, logics

IEC 61131-3

Cybersecurity features

sFTP, HTTPs, firewall, audit log,

Slave protocol

Password accessing

IEC 61850, DNP3.0,
IEC 870-5-103, PROCOME
Feeder protection relay | INGEPAC™ DA PT product range | Ingeteam

6Togami Electric Mfg. Co., Ltd.

High-Efficiency Ventilation System
The rated class of the enclosure complies with Class 15.
Ventilation louvers
Temperature rise test result
Temp. rise valueof the top oil of the transformer[Applied total loss : 100 %]⊿t1

45.7 K [without the enclosure]⊿t2

58.8 K [with the enclosure]

The class of the enclosure⊿t2-⊿t1 13.1 K <Class 15Temperature rise tests for definition of The class of the enclosure
According to IEC62271-202

7Togami Electric Mfg. Co., Ltd.

Protection Degrees (IP, IK degree)

ImpactProtection

IK 10Weight
5.0 kg

Fall400 mm

Energy20 Joule

4
Protected against
A solid object ≥1 mmIngressProtection

CIP 4 3

1st digit
Degree of solid particle protection

8C

3
Protected against
Water spray at 60°

C

2 nd digit
Degree of liquid ingress protection

Togami Electric Mfg. Co., Ltd.

Heavy Duty Coating for The Enclosure
2-coat 2-bake coatingPretreatmentZinc phosphate chemical conversion

Base coating

Epoxy-based powder coating

Top coating

Polyester-based powder coating

Min. coating thickness

80 μm

Munsell color system

5Y7/1 [Semi gloss]

Design test item (Partial list)
Test cycle (60 min)Accelerated
Light only:12 min
Weathering test
Light and water splay :48 min[SWOM]
Test duration:2,000 h
Test cycle (60 min)
Hot water immersed (95℃) :30 min
Cycle corrosion test
Cold water immersed (5℃) :30 min
Test duration:360 h
Test cycle (8 h)Salt spray(2 h)→Drying(4 h)→Wetting(2 h)
Neutral salt spray testSalt concentration: 5%[NSS]
Test duration:3,750 h

The coating meets Togami internal criteria standard.
9Togami Electric Mfg. Co., Ltd.

Internal Arc Safety Design
Our CUS is certificated in STL laboratory.(IEC62271-202 6.102)
The test is carried out 4 patterns [IAC-A,B and 2 arc ignition points ]Test current
Test duration
Internal Arc Classification
Arc ignition point

1016 kAr.m.s
1s
IAC-A, B
Point A:MV cable box in RMU
Point B:Inside RMU

IAC-A

IAC-B

(Door open condition)(Door closed condition)

16kA,1 sec. IAC-A(Door open condition)
Arc ignited in the cable compartment (CC)Togami Electric Mfg. Co., Ltd.

Specification : Ring Main Unit

Rated voltage
Rated current
Rated frequency
Rated short time withstand current(LBS, ES)
Rated short circuit making current(LBS, ES)
Rated power frequency withstand voltage

Lightning impulse withstand voltage

1124 kV
630 A (2-IN), 200 A (1-OUT)
50 Hz
16 kAr.m.s 1 sec.
40 kApeak
50 kV (Dry)
125 kV

Togami Electric Mfg. Co., Ltd.

Specification : Distribution Transformer

12

Rated primary and secondary voltage

24 kV / 416/240 v

Percent of rated voltage each tapping-4×2.5 %Connection symbol

Dyn1

Type of cooling

KNAN

Load loss at rated current (Max.)

4,200 w

No load loss at rated voltage (Max.)

790 w

Impedance voltage at 75 ℃

3.25 % or more

Togami Electric Mfg. Co., Ltd.

Specification : Low Voltage Compartment
Incoming MCCB

Outgoing MCCB1,2
Voltmeter

Ammeter
w/demand indicator
Incoming MCCB

800AT/800AF

Outgoing MCCB 1 and 2

400AT/250AF
Icu=30 kA at 400V

Outgoing MCCB 3 to 6

400AT/400AF
Icu=30 kA at 400V

Ammeter w/ demand indicator(15min. Delay)±1.5 % / ±3.0 %Voltmeter w/ selector switch±1.5 %

Outgoing MCCB3 to 6

13Togami Electric Mfg. Co., Ltd.

Single Line Diagram

14Togami Electric Mfg. Co., Ltd.

Togami Electric Mfg. Co., Ltd.