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SE Rapid Traction Power System DC Switchgear
GE
GE
Industrial Solutions
2010 World's Most Innovative Companies
2008 World’s Most Respected Companies 2007 World’s Best R&D Companies
2011 World’s Most Admired Companies
2011 Best Global Brand
2009 World’s Most Respected Companies
GE is a diversified organization covering a myriad of market segments, including infrastructure, finance and media.
From energy, water, transportation and health to access to money and information, GE serves customers in more than
100 countries and employs more than 300,000 people worldwide.
The company traces its beginnings from Thomas A. Edison, who established the Edison Electric Light Company in 1878.
In 1892, a merger of Edison General Electric Company and Thomson-Houston Electric Company created the General
Electric Company. GE is the only company listed in the Dow Jones Industrial Index today that was also included in the
original index in 1896.
GE Industrial Solutions, a division of GE Energy Management, is a global leading provider in power distribution, offering a
wide range of products which include medium and low voltage power distribution equipment and components, and
motor & control systems that are safe, reliable and offer high performance. Its innovative solutions can improve energy
efficiency and environmental impact in power plants, power grids, oil & gas, mining, data center, overseas EPC,
industrial manufacturing, rail transportation, commercial buildings, residential houses, renewable energy and many
other industries.
GE is one of the worldwide partners of the Olympic Games. In 2008, GE assisted Beijing with this tremendous event, which was unprecedented in scale and first-class in its use of science and technology, offering a series of innovative solutions and products for around 400 Olympic infrastructure projects, covering fields in electricity distribution, lighting, security, water processing, benefiting some 37 Olympic venues and 168 commercial buildings. GE also brought its experiences to the 2010 Expo in Shanghai, Asia Games in Guangzhou, Vancouver Olympic Games and continued through to the London 2012 Olympic Games.
General introduction 1
Features 2
Typical Applications 6
Structure and Installation 9
Technical Description 11
Cubicle Description 14
Incoming Cubicle 14
Feeder Cubicle 15
Negative Cubicle 16
Electronic Ground Fault Protection 17
Introduction of Components 18
High-speed breaker Gerapid 4207 18
Digital Relay MPR-32 20
Appendix 22
Contents
1
General introductionSE Rapid traction power system DC switchgear developed by GE is a complete power distribution system with feeder protection and control for the DC traction power system in railway transportation.
SE Rapid consists of incoming cubicle, feeder cubicle, negative cubicle, shunt trip cubicle and over voltage limiting cubicle etc.
With the latest US made digital relay and the modern high-speed DC breaker (Gerapid) from GE , SE Rapid satisfies the needs of DC traction power supply for metro and rail transit all over the word.
SE Rapid offers a system solution in a compact and robust framework. It complies with international standards EN50123/IEC60439-1 for application of low-voltage switchgear. The rated current of the switchgear is up to 6000A.
SE Rapid traction power system DC switchgear
2
Features
Safety and Reliability
• Equipped with Gerapid, the high-speed DC breaker with large capacity and high reliability
• Compliance with international standards EN 50123 and IEC60439-1/ IEC61992
• GE's Digital Relay MPR-32 provides all the protection and monitoring functions for DC feeder
systems of metro
Digital relay for DC Protection Gerapid High-speed Circuit Breaker
3
Reliable protection performance
• Protection module is separated from trolley with only sampling module installed.
• Relay communication network
• Electromagnetic trip and static trip
• Comprehensive protection with multi-level operating authority
• Reliable electromagnetic interlock to prevent wrong operation
• Using fault simulation CPU board to simulate all over-current protection.
Mechanical interlock Net-microcomputer relay protection
4
Powerful Communication Function
• TCP/IP, MODBUS communication
• RS485, RS232, Ethernet ports, and PC communication
• Transmission rate up to 10M/100M
• Optical fiber communication, anti-electromagnetic interference
Low voltage control compartment Optical fiber communication
5
Flexible and Easy Operation
Secondary connector Trolley operation
• Friendly user-interface in Chinese and English
• Easy installation assisted by smooth-moving trolly
• The trolley suitable for all feeder cubicles makes operation effortless.
• Flexible parameter configuration and easy operation. All configuration parameters can be set up remotely
• A compact framework with high stabilization
• A secondary connector for optical fiber communication inside the cubicle
6
SCADA ServerSQL Server
PrinterScreens/Trends
Exchanger
Engineer station
90-30 PLC
QuickPanel Control
40.5kV system
GE provides SecoCube-40.5
CGIS Cubicle Gas Insulating
Switchgear with GE Multilin
F650 type integrated
management relaySCADA
GE provides SCADA integrated system
Transformer
GE provides Wave Cast
SCB10 cast resin dry-type
power transformers
Catenary UplinkDownlinkNegative track
Unit substationGE provides MLS-600 low voltage switchgear with MPACT ACB breaker and Record Plus MCCB breaker
DC system
GE provides SE Rapid
DC Switchgear with GE
Gerapid high-speed DC
breaker
Typical ApplicationsDC traction power-systems for urban railway transportation system like metro, light rail and trolleybus
Traction Power Station with complete offer from GE
7
Incoming cubicle
Feeder cubicle
VehicleNegative cubicle
SE Rapid Application in Traction Power StationDC 1500V rectified from high AC voltage (e.g. 35kV) is supplied to the third rail or overhead line through DC switchgear in traction power station
SE Rapid series DC Switchgear complies with standard EN 50123(Railway applications. Fixed installations. D.C. switchgear) and consists of following four types cubicles:
Incoming cubicle: shall be installed between the positive pole of rectifier and DC 1500V positive busbar to control the feeding from rectifiers to DC 1500V busbar
Feeder cubicle: shall be installed between the positive busbar and the disconnector going to the overhead line. It controls and protects the feeding from DC 1500V positive busbar to feeder line
Negative cubicle: shall be installed between negative pole of the rectifier and the return rail to control the return current from feeder line
Electronic ground fault protection: is connected with the negative rail and the earth of public station to measure the voltage between rail and earth. It keeps the safety of people walking on the rail
A B C A B C
8
Control and Protection for Traction Power SystemHigh-speed DC breaker (Gerapid) and the microcomputer relay MPR are integrated in SE Rapid DC switchgear, which provides the highest-level control and protection function for traction power system
SE Rapid provides the most reliable basic protection
Di/dt and △I protection(Rising rate and current increment protection)Protection function based on measure of current: The frame current leakage, electromagnetic/static trip, overcurrent , reverse current and etcProtection function based on measure of voltage: The frame voltage leakage, low level voltage protection, rail voltage limiting protection
SE Rapid also provides more advanced protection
Multi-language selection (Chinese/English), customized according to requirementIntelligent internal and external interlock, safe-operation protectionControl and protection parameter configuration switching freely (Alarm, trip, interlock) by remote SCADA control center or local PCBidirectional low current ground faults, time overcurrent, inverse time overcurrent, and extreme inverse overcurrent protectionCable thermal overload protectionIntertrip protection
9
Structure and Installation
Cubicle dimensions (Could be customized):(mm)
The switchgear assembly has the type-C material modular construction with self-threading screws joint the frame and components. The frame and enclosure have adequate strength and the rigidity to bear mechanical stress and electrodynamics force during short circuit and components installation.
Protection degree: Trolley compartment: IP2XLow voltage compartment: IP4X
Cubicle type Height Width DepthFeeder cubicle 2260 500/800 1500
Incoming cubicle 2260 500/800 1500
Negative cubicle 2260 1200 1200
OHL DS cubicle 2260 500/800 1500
OA DS cubicle 2260 500/800 1500
60
PA
A P T
PA
A P T
PV PA
A P T
PA
A P T
A
AA
A A
A
A
A
A
A
A
A
A
A
A
A
A
Feeder cubicle
Incoming cubicle
Feedercubicle
Feedercubicle
Incomingcubicle
Feedercubicle
Negative cubicle
500 500 5003
500 500 1200
2200
1585
3 3 3
Multifunction Protection Relay
VG Controls
Rev CurInst CurTmd CurRORLockoutHealthy
Multifunction Protection Relay
VG Controls
Rev CurInst CurTmd CurRORLockoutHealthy
Multifunction Protection Relay
VG Controls
Rev CurInst CurTmd CurRORLockoutHealthy
PA
A P T
PA
A P T
5003
Multifunction Protection Relay
VG Controls
Rev CurInst CurTmd CurRORLockoutHealthy
10
1500
500 500 500
50 400 103 400 103 400
500 500 500
400 103 400 103 400
1400
100
100
200
300
103
300
200
200
1200
1100
100
100
1100
1200
700
Feedercubicle
Incomingcubicle
Incoming cubicle
Feeder cubicle
Feeder cubicle
Feeder cubicle
Negative Cubicle
Layout
Primary System Diagram
Operation ConditionsNormal operation conditions
Ambient temperature:-5℃~+40℃; average temperature within 24h is less than +35℃Atmosphere conditions:clean air; ambient relative humidity shall not exceed 50% when the highest temperature is +40℃. When the temperature is low, it allows higher humidityAltitude:≤1400m
Pollution degreeIII.
M
M
M
M
M M
DC1500V+ DC1500V-
L- L-
V V
11
Technical Description
Electrical Data
Main Components BreakerIncoming cubicle: High-speed breaker 4000A auxiliary power supply (APS) DC.220V Feeder cubicle: High-speed breaker 4000A auxiliary power supply (APS) DC.220V
DisconnectorIncoming cubicle: Electric disconnector 4000A auxiliary power supply (APS) DC.220VNegative cubicle: Manual disconnector 4000A auxiliary power supply (APS) DC.220V
Current divider Incoming cubicle: 4000A/60mVFeeder cubicle: 4000A/60mVNegative cubicle: 800-10000A/60mV
Lightning arrester: Incoming cubicle: 3EB2 020-7D Rated voltage 2000V (Optional)Negative cubicle (Optional): 3EB2 020-7D Rated voltage 2000V (Optional)
Electrical DataNominal voltage Un 1500V DC
Rated insulation voltage UNm 3000V DC
Rated voltage UNe 1800V DC
Impulse withstand voltage UNi primary circuit 1.2/50μs Between main circuit and earth 15kV
Across the isolating distance 18kV
Power frequency withstand voltage Ua Main circuit 50HZ/1min Between main circuit and earth 6.9kV
Across isolating distance 8.3kV
Power frequency withstand voltage Ua Auxiliary circuit 50HZ/1min Between main circuit and frame 2.0kV
Main busbar conventional thermal current Ithe1 6000A
Feeder conventional thermal current Ithe2 4000A
Frame rated earth fault current INcwe 31.5kA
Main busbars rated short-time withstand current INcw [250ms] 70kA
Main busbar rated peak withstand current Ipk 100kA
CB rated short-circuit restraint current INss [250ms] 70kA
CB rated short-circuit peak current Iss 100kA
Over voltage category III
Material category I and II
Protection level IP2X/IP4X
12
Partition and Shutter
Partition separates the equipment into busbar compartment , trolley compartment , low voltage control compartment. It prevents neighbor live units from touching each other. It also avoids other object moving from one compartment to another Partition is made of zinc coated metal plate or insulation board. The zinc coated metal plate is connected to protection conductor
The partition in the compartment will not be damaged or permanently distorted by pressure of electric arc or free gas produced from short-circuit breaking
When the trolley is moved out, the insulated shutter will keep trolley compartment and busbar compartment apart
Protective EarthingSE Rapid not only compliances with IEC60439-1, but also provides more advanced earthing protection
Protection:
The switchgear has an earthing bar across the whole switchboard. All the frame of electrical components inside the equipment are connected to the cubicle frame by the earthing bar
The trolley is connected to the cubicle frame through the sliding contact mechanism
All the metal partitions used to separate the live conductor and metal handle of electrical components are earthed effectively
Earthing:
Drive shaft Clockwise: Test position to service positionCounter clockwise: Service position to test position
Racking Mechanism
13
InterlockInterlocking system is applied to prevent operator errors.The trolley has both mechanical and electrical interlockTrolley can be moved out only when DC breaker is openDisconnector can be operated only when related breaker and is open.
Trolley The trolley located in the trolley compartment consists of the cart , high-speed breaker, measuring unit, latch mechanism, interlocker and main circuit contactWith idler wheels on both sides, the trolley has guiding function to facilitate the movement into or out the compartmentThe electric and mechanic interlocking ensures that the high-speed breaker is always open when the trolley moves between test and service position.Both side of the trolley have sliding contact mechanism for reliable earthing.The main busbar and contactor are visible, with the transparent patition between breaker compartment and busbar compartment made from fire-retardant insulation material.
WindowThe window has the same protection degree as the equipment. It uses transparent self-extinguishing insulation material with the same mechanical robustness of the cubicle.
Mechanical interlock
Trolley
Disconnector and insulatedtransparent partition
14
Cubicle DescriptionSE Rapid DC switchgear includes incoming cubicle, feeder cubicle, negative cubicle and Electronic Ground Fault Protection
Incoming CubicleThe incoming cubicle, as the isolation between the positive pole of rectifier and busbar of DC feeder, is installed between two feeder cubicles
Incoming cubicle
Transparent partition separates the busbar compartment from disconnector-operating compartment, which ensures the safety of operators
Low voltage control compartment segregated by partition to reduce electrical interference and ensure operator safety.
Equipped with one set of high quality electromotion disconnector STOL-4000LOne set of voltage meter to measure the voltage of main busbarEarth fault detecting device for control circuits DC/DC power supply converter Two surge arrestorsElectric interlocking with feeder cubicles and negative cubicles to prevent wrong operation
Disconnector off
Disconnector on Low voltage control compartment
Busbar
15
Feeder CubicleThe cubicle consists of low voltage control compartment, trolley compartment and busbar compartment
Low voltage control compartmentEquipped with digital relay MPR-32 to satisfy requirements of control and protection
Trolley compartmentEquipped with GE high quality high-speed DC breaker Gerapid The trolley equipped with high performance DC circuit breaker, sensor and digital sampling moduleElectrically and mechanically interlocked with feeder cubicles to guarantee safetySmooth and easy trolley operation by drive shaft mechanism
Busbar CompartmentBusbar is located in the rear of the feeder, and outgoing cable is at the bottomThe transparent shutter between busbar compartment and trolley compartment, ensures entire segregation but clear visibility when the trolley is removed out of the cubicle.
Busbar compartment
Low voltage control compartment
Trolley
Feeder Cubicle
16
Negative CubicleThe negative cubicle is installed between two rectifier cubicles, as isolation between the negative pole of the rectifier and rails
Two high quality manual disconnectors STOL-4000AUse one ammeter to measure the total return current, and several ammeters to measure each branch return currentThe frame current leakage protection, detects the current between the frame and the protection earthThe frame voltage leakage protection detects the voltage between the frame and the negative pole of traction systemLightning arrester (Optional)Electrically interlocked with feeder cubicles and incoming cubicles to prevent wrong operation
Negative cubicle
High quality manual disconnectors STOL-4000A
The frame current leakage protection
The frame voltage leakage protection
17
Construction parametersOperation temperature from 5ºC to 45ºC
Weight 150-180kg
Dimensions(height x width x depth) 2260x600x600 [mm]
Electronic Ground Fault ProtectionWhen frame leakage or short circuit between feeder line and overhead earthing line happens, the protection panel will operate according to EN50122-1 standard to guarantee personnel safety.The worst fault condition is frame leakage or short circuit between feeder line and overhead earthing line. The equipment bears the maximum short circuit current for longest time.It is recommended to disable the voltage component in the protection when using thyristor contactor type protection to prevent unintended tripping.
EZZ Electronic Ground Fault Protection in Traction Power StationAnti-shock protectionTrip on all the ground faultsTrip the traction substation in case of current return cable brokenLimit irregular current
Busbar Diagram
Feeder (breaker) cubicleIncoming (disconnector) cubicle
Electronic ground fault protection
18
Technical Data of Gerapid 4207 Type of Arc chute 2x2
Max breaking capacity kA 100
Rated voltage V 2000
Rated current A IEC/EN/ANSI 4200
Short time withstand current A 2h 5000
Short time withstand current A 1min 8500
Short time withstand currentA 20sec 12600
Mechanical endurance (minimal maintenance) 50000
Introduction of ComponentsHigh-speed breaker Gerapid 4207
Compact design based on modular conceptGE six-sigma quality control High breaking capacity and excellent insulation character
Typical short-circuit oscillogramGerapid 4207 with arc chute type 2x2
Test voltage: 1600VProspective breaking current: 114kATime constant: 12 ms
Product Characters
Compact modular design2 stage contact systemDriving-mechanic locking device without auxiliary power supplyElectromagnetic drive integrated with control unitVariable wiring terminalsComplete accessories
Standard Certification IEC60947-2EN50123 ANSI C37.14.GB140482 and win CCC certification
19
Germany
England
Germany
Estonia
Poland
CzechiaSlovakia
Belgium
Spain
Switzerland
Italy Turkey
South Africa
India
China
Thailand
South Korea
Australia
Canada
USA
Chile
Brazil
Gerapid High-speed Breaker Reference List (Part)
Projects Details
Shanghai Metro line 1 extension China
Shanghai Metro line 3
Shanghai Metro line 4
Shanghai Metro line 5
Shenzhen Metro line 1
Shenzhen Metro line 4
Beijing Airport Metro Line
Shenyang Metro
Changchun Metro
Tianjin Metro
Metro Algier Algeria
SNCB Belgium
Sao Paulo Brazil
Metro Vancouver Canada
Metro Santiago Chile
Estonia Railway VIRU Esthonia
DB Energy (German Rail) Germany
Metro Athen Greece
Bangalore India
Dash Dublin Ireland
Melegnano, Cinisello Balsamo (MI) Italy
Metro Pusan South Korea
KGE Casablanca Morocco
Schiphol Holand
Manila Philippines
St. Petersburg Russia
Metro Madrid Spain
Stockholm Sweden
MRTA Bangkog Thailand
ESTRAM, Gebze-Kozaeli, Metro Istanbul Turkey
Network Rail London, Canterbury (Kent) Great Britain
BART(retrofit)
Long Island Rail Road-Shea Stadium (SMC)
20
MPR-32
Digital Relay MPR-32As the market leader in digital relay, MPR-32 integrates control, protection, monitoring and communication for the DC feeder systems in metro applications.
FeaturesPowerful communication, including Ethernet, RS485, RS232, transmission rate up to10M/100M6 levels of authority for safety control32-bit high performance DSPHigh operation reliability (No error codes or wrong operation)Local and remote parameter settingSystematic fault analysis8 pieces of oscillograph records, 200 pieces of warning and events records22 DI and 32 DO
Control and communication diagram
Prot
ectio
n
Monitoring &
Metering
Com
mun
icat
ion
Release protection
Cable fault
Frame leakage
Diagnose record
Process count
Remote transmit
Shunt trip
Interlock
Automatic
re-closing
Control
MODBUS
TCP/IP Ethernet
PC operation
Protection Functions
Instantaneous Overcurrent (dual) (Inst)Inverse time overcurrent protection (Inv)Reverse Overcurrent (Rev)Timed Inverse Overcurrent(TOC)Cable thermal overload (Lng)Rate of rise (ROR) Contact Rail Potential Low Voltage (CRP)Low Level current Fault (LLF)Extreme Inverse Overcurrent (Xinv)Load Impedance Measuring/ Reclosing
S
Main control room of the substation
Feedercubicle
Incomingcubicle
Incomingcubicle
Feedercubicle
Feedercubicle
Feeder
cubicleNegativecubicle
Main control computer
SCADA control center
Ethernet
21
Metro Operating Companies Details
SHANGHAI METRO Shanghai, China
DART Dallas, Texas, USA
LIRR Long Island, New York,
HIAWATHA LRT Minneapolis, Minnesota, USA
BART San Francisco, California, USA
METRA Chicago, Illinois, USA
MARTA Atlanta, Georgia, USA
BOMBARDIER Pittsburgh, PA, USA
ALSTOM (AREVA) Istanbul, Turkey
DENVER LRT Denver, Colorado, USA
DULLES Airport Washington DC, USA
WMATA Washington DC, USA
MPR DIGITAL RELAY REFERENCE LIST (Part)
22
Appendix
Product Certification/StandardIEC60439-1,1999, Low-voltage whole set of switchgear and controlgear assemblies Part 1: Type-tested and partially type-tested assembliesEN50123-1,2003 Railway applications. Fixed installations. D.C. switchgear. GeneralEN50123-2,2003 Railway applications. Fixed installations. D.C. switchgear. D.C. circuit breakersEN50123-6,2003 Railway applications. Fixed installations. D.C. switchgear. D.C. switchgear assemblies
GE Industrial Solutions
Printing Code: IN201301C05EN
© Copyright GE Industrial Solutions 2013
For more information, please visitwww.geindustrial.com
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