GE
߾ᄽဣཥ
SE Rapid
Traction Power System DC Switchgear
GE
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.
Industrial Solutions
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.
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Contents
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
General introduction
SE 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
1
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
2
Gerapid High-speed Circuit Breaker
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
3
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
4
Optical fiber communication
Flexible and Easy 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
Secondary connector
Trolley operation
5
Typical Applications
DC traction power-systems for urban railway transportation system
like metro, light rail and trolleybus
Traction Power Station with complete offer from GE
90-30 PLC
40.5kV system
SCADA Server
SQL Server
Engineer
station
Printer
Screens/Trends
GE provides SecoCube-40.5
CGIS Cubicle Gas Insulating
Switchgear with GE Multilin
F650 type integrated
Exchanger
management relay
QuickPanel Control
SCADA
GE provides SCADA integrated system
DC system
Transformer
GE provides SE Rapid
GE provides Wave Cast
DC Switchgear with GE
SCB10 cast resin dry-type
Gerapid high-speed DC
power transformers
breaker
Unit substation
GE provides MLS-600 low
voltage switchgear with
MPACT ACB breaker and
Record Plus MCCB breaker
Catenary
6
Uplink
Downlink
Negative track
SE Rapid Application in Traction Power Station
DC 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
A B C
A B C
Incoming cubicle
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
Feeder cubicle
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
Negative cubicle
Vehicle
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
7
Control and Protection for Traction Power System
High-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 etc
Protection 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 requirement
Intelligent internal and external interlock, safe-operation protection
Control and protection parameter configuration switching freely (Alarm, trip, interlock) by
remote SCADA control center or local PC
Bidirectional low current ground faults, time overcurrent, inverse time overcurrent, and
extreme inverse overcurrent protection
Cable thermal overload protection
Intertrip protection
8
60
Structure and Installation
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Multifunction Protection Relay
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Multifunction Protection Relay
PA
Rev Cur
Inst Cur
Tmd Cur
PV
PA
ROR
Lockout
Healthy
APT
APT
Multifunction Protection Relay
PA
Rev Cur
Inst Cur
Tmd Cur
ROR
Lockout
Healthy
VG Controls
VG Controls
APT
APT
޶टࡋ
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Multifunction Protection Relay
PA
Rev Cur
Inst Cur
Tmd Cur
ROR
Lockout
Healthy
VG Controls
ᆸ৊၍
PA
PA
Rev Cur
Inst Cur
Tmd Cur
ROR
Lockout
Healthy
VG Controls
APT
APT
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
1585
2200
A
߾ፕ
߾ፕ
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ཚ
߾ፕ
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๬ᄓ
ཚ
500
Feeder
cubicle
500
3
Incoming
cubicle
ཚ
܏
๬ᄓ
ਸ࠲๮‫כ‬
3
߾ፕ
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๬ᄓ
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500
Feeder
cubicle
3
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๬ᄓ
ਸ࠲๮‫כ‬
ਸ࠲๮‫כ‬
3
500
Feeder
cubicle
500
Incoming
cubicle
3
500
Feeder
cubicle
1200
Negative cubicle
The switchgear assembly has the type-C material modular construction with selfthreading 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.
Cubicle dimensions (Could be customized)：（mm）
Cubicle type
Height
Width
Depth
Feeder 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
Protection degree:
Trolley compartment: IP2X
Low voltage compartment: IP4X
9
Layout
400
103
400
103
400
103
400
103
400
103
400
200 100
50
1200
1100
700
1400
200
300
500
500
500
500
500
500
Feeder
cubicle
Incoming
cubicle
Feeder
cubicle
Feeder
cubicle
Incoming
cubicle
Feeder
cubicle
100
200
300
100
1500
100
1100
1200
Negative Cubicle
Primary System Diagram
DC1500V+
DC1500VV
M
M
M
M
L-
V
M
M
L-
Operation Conditions
Normal 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 humidity
Altitude：≤1400m
Pollution degree
III.
10
Technical Description
Electrical Data
Electrical Data
Nominal voltage Un
1500V DC
Rated insulation voltage UNm
3000V DC
Rated voltage UNe
1800V DC
Impulse withstand voltage UNi primary circuit 1.2/50μs
Power frequency withstand voltage Ua Main circuit 50HZ/1min
Power frequency withstand voltage Ua Auxiliary circuit 50HZ/1min
Between main circuit and earth
15kV
Across the isolating distance
18kV
Between main circuit and earth
6.9kV
Across isolating distance
8.3kV
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
Material category
Protection level
III
I and II
IP2X/IP4X
Main Components
Breaker
Incoming cubicle: High-speed breaker 4000A auxiliary power supply (APS) DC.220V
Feeder cubicle: High-speed breaker 4000A auxiliary power supply (APS) DC.220V
Disconnector
Incoming cubicle: Electric disconnector 4000A auxiliary power supply (APS) DC.220V
Negative cubicle: Manual disconnector 4000A auxiliary power supply (APS) DC.220V
Current divider
Incoming cubicle: 4000A/60mV
Feeder cubicle: 4000A/60mV
Negative 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)
11
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 Earthing
SE 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
Earthing:
All the metal partitions used to separate the live conductor and metal handle of electrical components are
earthed effectively
Racking Mechanism
Drive shaft
12
Clockwise: Test position to service position
Counter clockwise: Service position to test position
Interlock
Interlocking system is applied to prevent operator errors.
The trolley has both mechanical and electrical interlock
Trolley can be moved out only when DC breaker is open
Disconnector can be operated only when related breaker and is open.
Mechanical interlock
Trolley
The trolley located in the trolley compartment consists of the cart , high-speed
breaker, measuring unit, latch mechanism, interlocker and main circuit contact
With idler wheels on both sides, the trolley has guiding function to facilitate the
movement into or out the compartment
The 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.
Trolley
Window
The window has the same protection degree as the equipment. It uses transparent
self-extinguishing insulation material with the same mechanical robustness of the
cubicle.
Disconnector and insulated
transparent partition
13
Cubicle Description
SE Rapid DC switchgear includes incoming cubicle, feeder cubicle, negative
cubicle and Electronic Ground Fault Protection
Incoming Cubicle
The 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-4000L
One set of voltage meter to measure the voltage of main
busbar
Earth fault detecting device for control circuits
DC/DC power supply converter
Two surge arrestors
Electric interlocking with feeder cubicles and negative
cubicles to prevent wrong operation
Disconnector on
Disconnector off
14
Low voltage control compartment
Busbar
Feeder Cubicle
The cubicle consists of low voltage control compartment, trolley compartment and
busbar compartment
Low voltage control compartment
Equipped with digital relay MPR-32 to satisfy requirements of control and
protection
Trolley compartment
Low voltage control compartment
Equipped with GE high quality high-speed DC breaker Gerapid
The trolley equipped with high performance DC circuit breaker, sensor and
digital sampling module
Electrically and mechanically interlocked with feeder cubicles to guarantee
safety
Smooth and easy trolley operation by drive shaft mechanism
Busbar Compartment
Busbar is located in the rear of the feeder, and outgoing cable is at the bottom
The transparent shutter between busbar compartment and trolley compartment,
ensures entire segregation but clear visibility when the trolley is removed out of
the cubicle.
Trolley
Busbar compartment
Feeder Cubicle
15
Negative Cubicle
The 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-4000A
Use one ammeter to measure the total return current, and several ammeters to measure each branch return
current
The frame current leakage protection, detects the current between the frame and the protection earth
The frame voltage leakage protection detects the voltage between the frame and the negative pole of
traction system
Lightning arrester (Optional)
Electrically interlocked with feeder cubicles and incoming cubicles to prevent wrong operation
High quality manual disconnectors STOL-4000A
The frame current leakage protection
Negative cubicle
16
The frame voltage leakage protection
Electronic Ground Fault Protection
When 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 Station
Anti-shock protection
Trip on all the ground faults
Trip the traction substation in case of current return cable broken
Limit irregular current
Construction parameters
Operation temperature
from 5ºC to 45ºC
Weight
150-180kg
Dimensions(height x width x depth)
2260x600x600 [mm]
Electronic ground fault protection
Busbar Diagram
Incoming (disconnector) cubicle
Feeder (breaker) cubicle
17
Introduction of Components
High-speed breaker Gerapid 4207
Compact design based on modular concept
GE six-sigma quality control
High breaking capacity and excellent insulation character
Typical short-circuit oscillogram
Gerapid 4207 with arc chute type 2x2
Product Characters
Compact modular design
2 stage contact system
Driving-mechanic locking device without auxiliary
power supply
Electromagnetic drive integrated with control unit
Variable wiring terminals
Complete accessories
Standard Certification
Test voltage: 1600V
IEC60947-2
Prospective breaking current: 114kA
EN50123
Time constant: 12 ms
ANSI C37.14.
GB140482 and win CCC certification
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)
18
50000
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
Estonia
England
Germany
Belgium
Switzerland
Spain
Poland
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
Germany
Turkey
Network Rail London, Canterbury (Kent)
Canada
Great Britain
BART(retrofit)
Czechia
Long Island Rail Road-Shea Stadium (SMC)
Slovakia
Italy
Turkey
China
India
South Korea
USA
Thailand
Brazil
South Africa
Australia
Chile
19
Digital Relay MPR-32
As the market leader in digital relay, MPR-32 integrates control, protection,
monitoring and communication for the DC feeder systems in metro applications.
Powerful communication, including Ethernet, RS485, RS232, transmission rate up
to10M/100M
Release protection
Diagnose record
Cable fault
Process count
Frame leakage
Remote transmit
32-bit high performance DSP
High operation reliability (No error codes or wrong operation)
Systematic fault analysis
8 pieces of oscillograph records, 200 pieces of warning and events records
MODBUS
TCP/IP Ethernet
PC operation
Shunt trip
Interlock
Automatic
re-closing
22 DI and 32 DO
Protection Functions
Control and communication diagram
Instantaneous Overcurrent (dual) (Inst)
SCADA control center
Inverse time overcurrent protection (Inv)
Reverse Overcurrent (Rev)
Timed Inverse Overcurrent(TOC)
Main control room
of the substation
Cable thermal overload (Lng)
Main control computer
Ethernet
Rate of rise (ROR)
Contact Rail Potential Low Voltage (CRP)
Low Level current Fault (LLF)
S
5HY&XU
5HY&XU
5HY&XU
,QVW&XU
,QVW&XU
,QVW&XU
,QVW&XU
7PG&XU
7PG&XU
7PG&XU
7PG&XU
525
525
525
525
/RFNRXW
/RFNRXW
/RFNRXW
/RFNRXW
+HDOWK\
+HDOWK\
+HDOWK\
Extreme Inverse Overcurrent (Xinv)
5HY&XU
+HDOWK\
Load Impedance Measuring/ Reclosing
Feeder
cubicle
20
Incoming
cubicle
Feeder
cubicle
Feeder
cubicle
Incoming
cubicle
Feeder
cubicle
Negative
cubicle
Control
Local and remote parameter setting
Communication
6 levels of authority for safety control
Monitoring & Metering
Features
Protection
MPR-32
MPR DIGITAL RELAY REFERENCE LIST (Part)
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
21
Appendix
Product Certification/Standard
IEC60439-1,1999, Low-voltage whole set of switchgear and controlgear assemblies Part 1: Type-tested and partially
type-tested assemblies
EN50123-1,2003 Railway applications. Fixed installations. D.C. switchgear. General
EN50123-2,2003 Railway applications. Fixed installations. D.C. switchgear. D.C. circuit breakers
EN50123-6,2003 Railway applications. Fixed installations. D.C. switchgear. D.C. switchgear assemblies
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GE
Industrial Solutions
Greater China
Shanghai
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T : +886 2 2183 7000
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