ENhancedTEChnology

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DC SwitchgearETGR 21 & 22 Series Ver. 3.0

DC Switchgearfor Railway System

DC Switchgear is the Major Equipment for Safe Operation in DC RailwaySystem. ETGR 21 & 22 series have been designed for DC Railway Substation,and also designed to be affordable in heavy conditions.

ETGR 21 & 22 are optimized in order to be installed in any place with easyhandling. And the users safety is maximized by restrictedly distinguishingall components upon adequate Insulation Voltage level.

HSCB(High Speed Circuit Breaker), DC Switchgear main component isapproved in their safety and reliability by passing International IndependentLaboratory test in IPH (CESI Group Company in Germany) in accordance withIEC Standard.

ENTEC ETGR 21&22 are divided into DC 1800[V] for Urban Subway Systemand DC 900[V] for Light Railway System.

Future would be derived by ENTEC s advancedtechnology and endless study from DC Switchgearin main core of Metro Power System.

2 ENhanced TEChnology

Characteristics

Fast and precise operation capability by using Digital Protection Relay in case of variouspower fault. Short circuit or heavy current are managed by mechanical OCRinside of breaker as instantaneous trip.

Digital Protection relay application

System event(1,000 events), fault record(100 events, 16 waves, 0.1~6,000ms sampling) canbe stored in Digital Protection Relay and System control and management efficiency isincreased by having Protocol communication (DNP 3.0 , Modbus, IEC 60870 and etc.)through SCADA RTU.

Information storage

Through insulated barriers inside of cubicle, frame fault by Arc spewed out from CB arcchamber is eliminated and it is even possible to maintenance job for live line work.

Cubicle inside Insulation

- Four insulated rubber wheels(front : 2 free wheels, rear : 2 fixed wheels) are used and it iseasily engaged with main power Bus.

- Manual and Automatic withdrawable truck operations are available between service andtest position .

Convenient Handling of withdrawal type CB truck

The most advanced technology PMA is built inside of Circuit Breaker and compactsize ofDisconnector is combined in order to optimize the cubicle space use and switchgear.

Compact design

To prevent any incident from mis-operation, Interlock mechanisms are applied amongHSCB, Disconnector and panel.

Interlocks

Outstanding interruption of small current(0~500A) and Mid-low current (500~3,000A).All range of small current, load current, fault current upto rated interrupting capacity are ableto be quickly and safely managed without having any blind current range at rated voltage.

Both of HSCB and Disconnector are adequate for high frequent operational duties.Operation reliability

High quality of HSCB and DC Disconnector are evidenced by completing Internationalauthorized Laboratory test according to International standards.

High quality DC high Speed Circuit Breaker(HSCB) andDC Disconnector application

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Current Interruption

1

2

4

5

6

10

8

3

4

7

9

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Surge ArresterSurge (Lightening Surge,Inductive surge) prenvention.

DC HSCB(Incl. truck)Fast fault current clearing ina fault occasion.Several Interlock funtions areapplied in Circuit Breaker.

DC Power meter (kWh)Power consumption calculation.

64P (Voltage type)Monitoring earth voltage potential increasing and protect system.

64HR (Current type)Monitoring between DC livebus and enclosure, Protectearth current.

DC DisconnectorPower line close and openwhen no load.

FaultselectiveRelay(50F)Determine faults and operateCircuit Breaker (Digital type).

DC PTPrimary voltage sensing.

Communication DeviceDC CTCurrent Sensing.

Product construction

Rating and Operation

Nominal VoltageRated VoltageInsulation VoltageRated interrupting over voltageRated currentRated making and breaking capacityOperation dutydi/dt (Current rising rate vs time)Mechanical operationPower frequency withstand voltag (60Hz,1min.)Rated operation and control voltageOver current Release Pick-upMax. Ambient Temp / Avg. Temp.Altitude

Size [Width x Depth x Height mm]

Weight [kg]IP protection (IEC 529)Applied standard

DC 750VDC 900V

DC 1,800V

5.5kV

650

1.5 ~ 2 x rated voltage2,000A / 3,000A / 4,000A

133kAp /91.2kA 110kAp /76.8kAO-15sec-CO-15sec-CO-60sec-CO (max fault, max energy, distant fault)

30.7 x 106A/S 24.2 x 106A/S40,000 times

DC 110V / 220V5 ~ 15kA

40 / 352,000m

IP31IEC 61992, JEC 7152 etc

DC 1,500VDC 1,800VDC 3,000V

11kV

700

Model ETGR 21 ETGR 22

Ratings

OperationElectrical operation Mechanical Operation

By attaching the removable manual closing device HSCBcan be closed when there is no external power supply.

Option Size [Depth] : 1,900mm(When adding a function of automatic withdrawal, for other sizes, discuss with maker)

Manual Closing Device(DC HSCB)

For trip HSCB manual tripping can be operated by manualHandle of front Panel. Circuit Breaker can be drawn out andinserted only on the HSCB Tripped Status in DC Cubicle.20[kg] is required for Manual Tripping Handle.

Manual Trip Device(DC HSCB)

When DC Control Power is missing, it is possible to Closeor Open Disconnected Switch(DS) using Manual Handleitself.

Manual Close/Open(DC DS)

(Fault selective Relay, DC Ground Relay, Undervoltage Relay, Reverse Current Relay, OCR,Intertripping Signal Relay, Lock-Out Relay)

Trip by protection Relay System

Trip by Direct Fault CurrentLocal Close/OpenRemote Close/Open

5ENhanced TEChnology

Rectifier, Feeder (600 x 1,800 x 2,200 / 600 x 1,500 x 2,200)Negative (1,500 x 1,800 x 2,200 / 1,200 x 1,200 x 2,200)

Protection SystemConfiguration

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B

76I76D85458280

76I

76I76D85458280

Other communication available upon user request.

7

Standard type

Test Graph

Width [mm] 600 600 600 600 1,500

Panel Type Rectifier Feeder Tie postSpare Neg. DS

Standard type and Test Graph

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76I76D458280

DC HSCB CO Test Oscillogram (Interruption, 110 [kA])

Disconnector Test Oscillogram (Short time current, 106.5 [kA, peak])

Other application available upon user request.

DC High Speed Circuit Breaker (DC HSCB)

8ENhanced TEChnology

DC HSCB is used to manage DC Power Feeding line and interrupt a fault current.EDB Series is designed with the most advanced technology in order to protect Railway systemfrom abnormal phenomenon of Power feeding system.Under high frequent switching and heavy load condition, EDB Series DC HSCB is the most reliable.

EDB Series has rated voltage of DC 900V for light weight railway system (EDB-09) and rated voltageof DC 1800V for Urban railway system.

Enhanced small current interruptionOwn patent of small current interruption technology apply. Through capability of clearing all rangesof current(0 Amp~Rated making and breaking current), eliminates blind spot of system protection.

High Durability and ReliabilityThe most reliable and simplest Magnetic Actuator Mechanism application, over 40,000 timesof operation and high speed overcurrent tripping are encountered.

Quality AssuranceInternational authorized laboratory(IPH CESI, KERI) type test was successfully completedwith International standard(IEC).

Sufficient current and thermal capacitySufficient electric current capacity to keep lower then regulated temperature (85) whenrated current becomes saturated.

High Insulation capacity and increased interruption capabilitySufficient insulation capacity(AC 11kV) to protect users from abnormal condition andincreased electric current capacity and interruption capacity of Breaker to comply in largecapacity of heavy load DC system.

Optimized design with simple structureCAD and 3D design contributes more optimized structure design and convenient maintenance.

Panel InterfaceSimple interface structure between Panel and Protection Relay.

Characteristics

Nominal voltageRated voltageRated currentRated interrupting over voltage

Operation duty

Mechanical OperationRated making and breaking capacityRated operation voltage

Phase-Phase Phase-Ground Control Circuit

Over current trip device(76I)Size[Width x Depth x Height]Applied standard

DC 750VDC 900V

345913831.5

2,000A /3,000A /4,000A1.5~2.5Ue

O-15sec-CO-15sec-CO-60sec-CO(max fault, max energy, distant fault)

40,000 times133kAp /91.2kA 110kAp /76.8kA

DC 110V / 220VAC 11kV/1minAC 9.2kV/1minAC 2kV/1min

5~15kA

IEC, JEC

DC 1,500VDC 1,800V

345913881.5

Model EDB-09 EDB-18

Ratings

Insulationvoltage

9ENhanced TEChnology

Overview

ETCPU200 Panel54F LINE FEEDER

ETCPU200

HMI(Human Machine Interface) Panel

DC protection relay ETCPU200 includes Fault Selective Relay(50F), Overcurrent Relay(76D),Voltage Relay(45,80), Ground Fault Relay(64P)and Reclosing Relay(82) in order to protectMetro DC system.For remote control and monitoring DNP3.0, IEC60870, MODBUS and etc. protocols are used.

FeaturesConsist of DC protection relay(ETCPU200) and Human Machine Interface(ETCPU200HMI).Monitoring function - Current, Voltage, Delta-I, di/dt etc.4 Analog input port - Feeder current, Voltage, Rectifier voltage, Compensation current.

(Option: 4 user channel)Storage function - Operation and Fault event, Fault waves, Load waves etc.ETCPU200 has PLC function.Communication port: 4, PLC port: DO: 24, DI: 40.Human Machine Interface - Graphic LCD 240 x 128 Dot (English, Chinese and Korean font)HMI uses 485 communication and remote monitoring is available.User Interface PC Software available upon newly Window OSSystem event(1,000events), Fault event(100events), Fault wave(16waves, 0.1~6,000ms), Loadprofile (42days / daily: 3years) are downloaded and manageable by user Interface Software.

ETCPU200

Ver. 3.0

DC Disconnector

DC Disconnector is used for no load switching in DC feeder system.ET-DS design is compact and optimized in order to apply DC panel and Other applications.In addition, sufficient insulation capacity and electric current capacity increase the product safety.Fast operation time accommodate the user convenience.

High durability and reliabilityRegular operation time and good electrical mechanical characteristics by using ofhigh quality materials.

Reduction of Closing and Opening timeFast operation by reducing time of opening and closing with adopting relevant Motor Gearbox.

High grade Insulation and Sufficient electric current capacitySufficient current capacity and high grade insulation to protect users fromabnormal condition.

Compact and light weightSize and weight are compact and more optimized in order to provide more conveniencein handling.

Various operation methodNormally use electrical operation however manual operation of DC Disconnector isaccomplished in case of unstable power source or power-off.

Various installation arrangementFree Installation directions to accommodate convenience in construction.

Interlock provisionTo prevent mis-operation, interlock function are applied with Manual Lock and Position Lock.

Characteristics

Nominal voltageRated voltageRated currentRated short time currentOperation voltageOperation methodMechanical OperationOperation time

Phase-PhasePhase-Ground Control Circuit

Size[Width x Depth x Height]WeightApplied standard

DC 750/1500VDC 900/1800V

2,000A/3,000A/4,000A/5,000A106.5kAp / 75kADC 110V / 220VAuto / Manual100,000 timesBelow 2sec

AC11kV/1minAC9.2kV/1minAC 2kV/1min

300507450mm32kgIEC

Model ET-DS

Ratings

78-2 Buncheon-ri Bongdam-eup Hwaseong-city Gyungki-do KOREA 445-894TEL : 82-31-227-1161 FAX : 82-31-227-1164http://www.entecene.co.kr E-mail : entec@entecene.co.kr

Insulationvoltage