［ Introduction of New Products ］

Uninterruptible Power System(UPS), THYRIC 5000 Series
Keywords

Satoru Oishi,
Yasushi Watanabe,
Jun’ichi Watanabe,
Hisakazu Baba

Uninterruptible Power System (UPS), Efﬁciency upgrading, 200V class, Downsizing

Abstract

In order to deliver high-quality power supply to our customers, we havebeen supplying Uninterruptible Power Systems (UPS) for a long time. We recently
released a new type of 200V class UPS, THYRIC 5000 Series, in order to meet themarkets need for higher efﬁciencies.
The new model realized greatly improved performance of more than 40% of
elimination of losses (compared with our former products) and efﬁciency gain.
This model met the requirements of voltage transient characteristics in accordance with the JEC-2433: 2003 Class 1.
In addition to the above, the replacement cycle has been improved in order
to extend the operational life of its parts. Ease of maintenance has also been
improved by using the monitoring function through Web brouser and optional
reporting function via Internet mail services.

1 PrefaceFig. 1

THYRIC 5000

An external appearance of THYRIC 5000 is shown.

1950

In our IT-oriented society, there is a signiﬁcantrise of data volume and the importance of data over
the world and the need for data management isbecoming crucial. In addition, there is an increase in
our level of awareness after experiencing the Great
East Japan Earthquake in 2011.
People now believe that since “there is no
absolute stable power of the grid, we may need tosecure an in-house emergency power generation
system.” Such a belief has inﬂuenced the risingneeds for Uninterruptible Power Systems (UPS).
With the rise of environmental awareness, themarket shows an increased demand for environmentally conscious and high-efﬁcient UPS.
This paper introduces a new type of 200V
class UPS, Meiden THYRIC 5000 Series featuring
improved performance and ease of maintenance tomeet the charging market needs.

2 Speciﬁcations of THYRIC 5000 Series
Fig. 1 shows an external view and Fig. 2 shows
the outline drawing and external dimensions. Table 1shows external dimensions and mass. Table 2 shows
equipment speciﬁcations and capacities.

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WFig. 2

DUnit: mm

External Image of THYRIC 5000

An external image of THYRIC 5000 UPS is shown. Characters
W and D in this diagram correspond to those in Table 1.

Table 1 External Dimensions and Mass of THYRIC 5000
External dimensions and mass of the UPS main body are shownfor THYRIC 5000 Series.
Capacity (kVA)

W (mm)D (mm)

Mass (kg)

20600

800

800

30600

800

850

50

800

900

900

75

800

900

1100

100

900

900

1200

150

1100

900

1500

200

1200

900

1800

250

1400

1000

2000

300

1400

1000

2200

3 Features of THYRIC 5000 SeriesCompared with our conventional model, THYRIC3800 Series, the new product series features areintroduced below.

3.1 Improvement of Efﬁciency andPerformance
As a result of changing the control system andthe main circuit conﬁguration, we improved the loss
level at more than 40% and realized an efﬁciency ofthe highest class in this industry. Fig. 3 shows theefﬁciency curve of THYRIC 5000.
In regard to performance, the requirements ofTable 2 Specifications of THYRIC 5000 Series and Capacity Lineups
Speciﬁcations of THYRIC 5000 Series are shown.
Item

Specifications

Rated output capacity

20, 30, 50, 75, 100, 150, 200, 250, 300kVA

ACinput

Configuration

3-phase 3-wire

Rated voltage

200V・210・220V

Rated frequency

50Hz/60Hz

Permissible voltage deviation range±10%

Remarks

For voltages other than those on the left,
a transformer is installed on input side.

Permissible frequency deviation range ±5%
Input current distortion factor

Max. 3%

With rated I/O

Bypass Configuration

3-phase 3-wire

Rated voltage

200, 210, 220V

Configuration

3-phase 3-wire

Rated voltage

200, 210, 220V

Rated frequency

50Hz or 60Hz

Voltage control range

Rated voltage ±5%

Rated power factor

0.7 (lagging)〜1.0 Rated: 0.8/0.9

Within rated kW at power factor 0.9 or above

Inverter overload

125% for 10 minutes, 150% for 1 minute

110% for 30 minutes

Voltage accuracy±1.0%

Voltage transient response±2% Sudden change in AC power (±10%)

ACoutput±2% Loss・return of AC power±5% Sudden change in load (0⇔100%)

Conforming to JEC-2433: 2003 Class 1±5% Output changeover (Bypass⇔UPS)

Transient recovery

30ms Max.

Voltage unbalance＊

2% at unbalanced load

Frequency accuracy±0.01%

With internal oscillation

External sync range±1.5%

Setting possible at ±1.0〜5.0% (optional)

Voltage THD

2.0% Max. (for linear load)
5.0% Max. (for 100% non-linear load)

Installa- Cooling systemtionenviron- Installation place
ment
AltitudeForced airIndoors
1000m or below

Ambient temperature / Relative humidity 0〜40℃ / 15〜90%
Note: ＊ Voltage unbalance ＝Max. output voltage － Min. output voltage
Mean output voltage

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output voltage transient characteristics in accordance with the JEC-2433: 2003 Class 1. Fig. 4 shows
the voltage transient characteristics.

Efficiency (%)

94.0
93.0

91.00255075

100Load factor (%)

Fig. 3

Efficiency Curve of THYRIC 5000 (150kVA)

Voltage regulation (%)

10050Class1

Class20－50 Sudden loadchange0⇒100%－1000.0001
0.001

Sudden load change
100⇒0%
0.01

0.1

In response to the market needs, the replacement cycle term for key parts has been improved.
The cooling fan replacement is expected only once
during the expected UPS life (15 years) and the control source unit and electrolytic condenser do not
require replacement.

3.4 Improvement of Data Communication
Functions

The relationship between UPS and load factor is shown.

1Transient time (s)Fig. 4

For the 250kVA and 300kVA models, the panel
width has been reduced by 40% (compared withour conventional models) through the innovation ofits parts.

3.3 Reduction of Parts Replacement Cost

92.0

90.0

3.2 Compact Design

By adapting the data communication terminal(optional) for THYRIC 5000 Series, a variety of remotemonitoring functions have become available.
Fig. 5 shows an illustration for functions at thedata communication terminal. Data communication
between UPS and the data communication terminal
is supported by a serial transmission system (RS485).
The data communication terminal is connected withan external PC through the Ethernet. Each function
is explained below.

3.4.1 Monitoring Function

Voltage Transient Characteristics

The voltage transient characteristic stated in JEC-2433: 2003 iscompared with the characteristic of THYRIC 5000 Series. This
diagram indicates that THYRIC 5000 meets the requirements ofClass 1 if there is a sudden load change of 0 → 100%.

For the purpose of monitoring, it is possible tocheck the state of equipment and failures as well as
values of telemetry. Monitoring is based on the three

THYRIC 5000

MonitoringCondition ofequipment
Condition offailure
Telemetry value
Recording
Waveform infailure time
LoggerBillSystem history

Web server
function

Hub
Ethernet

StatuschangeStatuschangeDL onlyFirewall

E-mailstatus
reportingMailserver

E-mailfunction
Monitorterminal

Bi Logll

THYRIC 5000
control blockDatacommunication
Serialcommu- terminal
nication

Customer facilities

Remote operation
Run
Stop
Power
changeover

Monitorterminal

Data savefunction[Download,USB memory]

DL: Downloading

Fig. 5Illustration on Functions at the Data Communication Terminal

Possible functions are shown when a data communication terminal is used and the data becomes available. This terminal provides various functions such as supervisory control by using a Web browser (IE, etc.), e-mail, data save (downloading via web-server, storage ofdata in USB memory), and others.

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Fig. 6Main Screen of the Data Communication Terminal

Gaining access to the data terminal through a Web browser, supervisory control can be carried out. At the main screen, thestate of equipment operation and telemetry values in their respective blocks can be checked.

( 1) Waveforms at the time of a failure
A maximum of 16 log and trace ﬁles can besaved.
( 2 ) Data logger function
When the preset condition for data recording
changes, the preset telemetry data are recorded for
duration of the preset time.
( 3 ) Billing function
Three types of bills can be established in theformat of daily report, monthly report, and annualreport.
( 4 ) Function for history of system operation
Equipment operation, the occurrence of failures, and a history of system operation can bereviewed in a time serial mode.

3.4.3 Function of Remote Operation
Run, stop, and operation changeover (UPSpower feeding ⇔ bypass power feeding) can beperformed on a website. This operation is possibleon the main screen (see Fig. 6).

3.4.4 Function of Mail Transmission
As shown in the illustration of Fig. 5, conditions of equipment and errors can be emailed at thetime of a status change. Likewise, logged data andrecords of bills can be transmitted for recording.
Since the monitoring of objects like the equipment status and errors can be set up arbitrarily, it ispossible to receive the event notice e-mail limited toonly the speciﬁc status changes. The mail encoding
system is a general UTF-8 format.

3.4.5 Function of Data Save
Fig. 7

List-of-Failure Screen

By clicking “Error Status” at the main screen of the data communication terminal, this kind of screen will appear. The detailed
conditions of equipment failure and its status can be checkedfrom these screens.

It is possible to back up the data of bills, recorded
waveforms, etc. saved at the data terminal with an
externally connected USB memory. Manual datadownloading is also possible through the website.

4 Postscript
essential screens (see Fig. 6) including a typical
Single Line Diagram (SLD) of the main circuit, thelist-of-failures screen (see Fig. 7), and the telemetry
screen. In the SLD screen, telemetry values andpresence of any failure can be examined. In addition, the state of equipment can be identiﬁed in symbol colors (ON: red, OFF: green). In the list-of-failures
screen, a failure in equipment and also the operational state of the UPS can be conﬁrmed.

3.4.2 Recording Function
It is possible to save waveforms at the time ofa failure as well as logged data, records of bills, andhistory of system operation.

This paper introduced the features of the new
type of 200V class UPS, the THYRIC 5000 Series.
Compared with the conventional series (THYRIC3800), we had many positive results such as theimprovement of efﬁciency and maintainability, footprint reduction, and enhancement of remote monitoring functions.
We will continue to make further efforts to improvesystem reliability and work on other innovations so thatour products can meet the needs of our customers.
・All product and company names mentioned in this paper arethe trademarks and/or service marks of their respective owners.

MEIDEN REVIEW Series No.162 2014 No.321