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Innovative Solution for DC Traction Power Supply

Version 4.0

Remote evaluationvia modem orinternet(VPN)

Central evaluation system

Remote evaluationvia modem orinternet(VPN)

Central evaluation system

System Configuration of DC Traction Power Supply

ENTEC's Innovative Solution for DC Traction Power Supply 02 _ 03

ENTEC's advanced technology and endless innovation for DC Switchgear in DC Traction Power Systemwill contribute to a brighter approaching future. DC Switchgear is the essential equipment for SafeOperation in DC Traction Power System. ENTEC's DC Switchgears have been designed and optimizedfor DC Traction Power System and can also be utilized in heavy applications.

CharacteristicsWide Range Current Interruption

No dead zone

High quality componentsHSCB and Diconnector designed for frequent operation duty

Reliable protection relaySpecialized for Metro Power Traction Systemall information recorded

Outstanding arc quenching technologyPatented Boil Coil designFrame free from spewed-out arc

Rigid & Convenient DesignCompact design, easy installationwithdrawable HSCB truck, easy maintenance Strong cubicle structure by welding each part

DC Switchgear for DC Traction Power System

❶

❷

❼

❾

❿❽

❸

❹❺

❻

❷Surge ArresterSurge (Lightening Surge,Inductive surge) prevention.

❶DC HSCB(Incl. truck)Fast fault current clearing in a faultoccasion.Several Interlock funtions areapplied in Circuit Breaker.

❻DC Power meter (kWh)Power consumption calculation.

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

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

❼DC DisconnectorPower line close and openwhen no load.

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

❾DC PTPrimary voltage sensing.

❿Communication Device❽DC CTCurrent Sensing.

ENTEC's Innovative Solution for DC Traction Power Supply 04 _ 05

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

8.3kV/6.9kV

650

1.5 ~ 2 x rated voltage3000A/4000A/6000A

178kAp/125kA 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 / 220V2~8kA,6~12kA

40℃ / 35℃≤2,000m

＞ IP31IEC 61992

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

11kV/9.2kV

700

Model ETGR 21 ETGR 22Ratings

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

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)

OperationElectrical operation Mechanical Operation

Manual closing device by requestClose HSCB without external power supply.

Manual Closing Device(DC HSCB)

Trip HSCB under emergencyMust be held when withdrawing or inserting HSCB

Manual Trip Device(DC HSCB)

Close or open Disconnection Switch(DS) without power supplyManual 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

Standard Type and Test Graph

Panel Type

DC HSCB 'CO' Test Oscillogram

Rectifier Feeder Spare Tie post Neg. DS

Widrg[mm] 600 600 600 600 1,500

Standard type

Type Test

Test Graph

Disconnector Test Oscillogram

Other application available upon user request.

ENTEC's Innovative Solution for DC Traction Power Supply 06 _ 07

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 protectRailway system from abnormality of Power feeding system. Under high frequencyswitching and heavy load condition, EDB Series DC HSCB is the most reliable choice.EDB Series have rated voltage of DC 900V for light weight railway system (EDB-09)and rated voltage of DC 1800V for urban and heavy railway system(EDB-18).

DC High Speed Circuit Breaker(DC HSCB)

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

345×913×831.5

3000A / 4000A / 6000A1.5~2.5×Ue

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

40,000 times178kAp / 125kA 110kAp / 76.8kA

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

2~8kA, 6~12kA

IEC 61992

DC 1,500VDC 1,800V

345×913×881.5

Model EDB-09 EDB-18

Ratings

Insulationvoltage

Enhanced small current interruption0 ~ rated making and breaking current

High Durability and ReliabilityPMA Mechanism over 40,000 times of operationGuaranteed high speed overcurrent tripping

Quality AssuranceInternational authorized laboratory(IPH CESI, KERI) type tested

Sufficient current and thermal capacityHigh cooling efficiency 85 or lower under normal conditions.

High Insulation capacity and increased interruption capabilityTo ensure personnel safetyTo fulfill heavy interrupting duty

Optimized design with simple structureSimple installation, simple maintenance

Panel InterfaceSmart interface with protection relay

Characteristics

DC HSCB

DC Diconnector & Load Break Switch

1600A1000A1250A1600A6400A

13000A120 cycles/h

2500A20002500

-10000A20000A

60 cycles/h

DC Disconnector is used for no load switching in DC system. ET-DS design is compactand optimized to be integrated in DC switchgear and other applications. In addition, sufficient insulation capacity and electric current capacity increase thesafety level of the product. Fast operation time is also appealing in perspective of userconvenience.

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 900/1800V4000 / 6000A

178kAp/125kADC 110V / 220VAuto / Manual100,000 times

Below 2secAC11kV/1minAC9.2kV/1minAC 2kV/1min

300×507×450mm32kg

IEC 61992

Model ET-DS

Ratings

Disconnector

Load Break Switch

Insulationvoltage

DC LBS has been developed to provide making and breaking capacity to suit differentsituations. The safety and reliability are ensured by fast operating speed, safeinterruption of the arc and so on.

Rated operational voltage UeRated insulation voltage UiRated impulse withstand voltage UimpNumber of polesFrame size

Rated breaking capacityRated short-time withstand current Icw (1sec)Maximum electrical switching frequencyOverall dimensionsOperation temperatureVersions

Mechanical durabilityRated control voltageStandard

1500V3.82kV12kV

3

Please consult us-25 ~ +70

Electric holding / Mechanical latch holding

Insulated / Network with earthed negative polarity /Network with the mid-point earthed

2 millionsDC 24, 48, 110, 220V, AC 220V

IEC 60947-1, 60947-4-1

Model ET-LBS

Ratings

Rated operational current

According to the type of DC network

ENTEC's Innovative Solution for DC Traction Power Supply 08 _ 09

VLD(Voltage Limiting Device)

Real time rail voltage monitoringProtection against rail and / or earth voltage increasingSelective Ground Fault Protection

Function of VLD (IEC62128-1)

Rating Voltage [ V]Rated Current [A]Rated short-timeWithstand current [kA]

HV contactorHV contactor + Thyristor

Mechanism Life [times]Control Voltage [V]Standard

1,250DC 900 DC 1,800

50(250ms)

DC 25 ~ 300V / 0~1,000sDC 300 ~ 1,000V / Inst.

1,000,000DC 110V or AC 220V

IEC61992-6, BS EN 50122

Model ETOVPD 22Configuration & Specification

Principle of VLD Maximum permissible touch voltage(IEC62128-1)

Pick-upVoltage range

Voltage limiting device

ETCPU200or

ETCPU300

Fault Lamps

V,A-Meter

Control S/W

Counter(Contactor & Thyristor)

❶

❷

❸

❹

❺

❷HV. contactor❶Driver

❹DCCT ❺DCPT

❸ Thyristor

Protection Relay ETCPU & Interface software ETIMS

ETCPU200 + ETHMI

ETCPU300

Various line protection functionVarious communication protocolsMonitoring function: Current, voltage, Delta-I, di/dt etc.Storage function: operation and fault event, fault waves etc.PLC functionMultiple language supportedInterface PC software

With Interface Software ETIMS, ETCPU can be connected to and exchange data with a computer very easily and variousother functions can also be realized.

System Setting

PLC Edit

System information

System event

Diagnostic event

Load profile Wave form (Hourly)

Load profile Wave form (Daily)

Fault event

Fault wave summary & Fault wave form

Features

Interface Software ETIMS

Control Voltage [ V]Digital InputDigital OutputAnalog InputCommunicationData Saving

SIZE(mm)

Protection

DC 110 V / AC 220 V

IEC61850, IEC60870-5-101/104, DNP 3.0, ModBus, etcSystem history(1,000), Fault event(100), Fault waves(16), Load waves (3years), etc

Fault elective relay(50F) / Over current relay(76D) / Voltage relay(45,80) /Ground fault relay(64P) / Reclosing relay(82)

Model ETCPU 300ETCPU 200

Ratings

40 points24 points

8 ch.((±20mA or ±10V)

36 points24 points

16 ch.((±20mA or ±10V)

W275 D180 H160 W300 D240 H270

Earth

Train location

Potential betwee

n

rail and earth

V(-)

V(+)

DC(+)

A S/S(Sub sta tion)

B S/S(Sub sta tion)

DC(-) DC(+)DC(-)

DC(+)

F2F1

DC(-)

A S/S

DC(+)

CloseF2F1

DC(-)

B S/S

Close

DC(+)

F2F1

DC(-)

C S/S

DC(+)

F2F1

DC(-)

D S/S

VLD VLD VLD VLD VLD VLD VLD

ENTEC's Innovative Solution for DC Traction Power Supply 10 _ 11

SCMS (Stray Current Monitoring System)

Generally, the amount of stray current can be estimated indirectly by measuring return circuit’s resistance value againstground or rail potential caused by rail operation because it is difficult to measure stray current directly.

IMAX = 2.5 mA/m

Principle of SCMS

Voltage data acquisition, recording, plotting and real time monitoringAnalyzing of voltage data and alarmingReporting voltage data and VLD status historyData transmission to SCADA(through communication)Localization of the fault location

Functions of SCMS

VLDETCPU200 CMS (Central monitoring server)

Line Overview Alarm Viewer Trade Page ManagerConfiguration of SCMS

Reference electrode (IEC62128-2)

Open formation GRE 0.5 S/km per trackVRE 5V

Closed formationGRE 2.5 S/km per trackVRE 1V

225-38 Choirubaekro, Bongdam-Eup, Hwaseong-City, Gyunggi-Do, Republic of KoreaPost Code : 18329TEL: +82-31-299-8400 FAX:+82-31-299-8401~2http://www.entecene.co.kr E-mail: entec@entecene.co.kr

*Note. Product structure and arrangement shall be modified without notice. 1609

High Efficiency ( 99%)Current Unbalance ratio less than +/- 10%Full Load Operation of the Diode n-1 Condition Graphic User Interface ApplicationReal-Time Monitoring System & AlertsCompact and Convenient Maintenance with design Rectifier Operation History Storage etc.

Key Features

Rated Input Voltage Rated Output Voltage

Rated CurrentRated Frequency Over-load RatingInput SystemOutput PulseCooling MethodPower Frequency Withstand VoltageDiode TypeDiode Max Unbalanced CurrentFull Load Efficiency Maximum Noise StandardRated Control Voltage

IP Protection (IEC 529)Apply standard

*Rated Capacity

Maximum Environmental Temperature/Avg. Temp(Days)/Avg. (Year)

Model ETSR22ETSR21

Ratings

AC 300V (1,200V) DC 750V

1,000/2,000kW

1,333/2,667A

2,350V

AC 600V (1,200V) DC 1,500V

2,000/3,000/4000kW

1,333/2,000/2,667A

4,140V

* other ratings : consultation with customer

50/60HzContinuous at 100% current / 2Hrs at 150% / 1Min at 300% (Class VI)

Rectifier Tr ( / ‚ or / -Y) 6P or 12P

Self-Cooling

Silicone+/- 10%

99% 60dB

DC 110V and others

40 /30 /25

IP 31IEC 60146-1-1, 146-2 etc.

Silicone Rectifier