D.C. Switchgear Range Type MBS

SUBSTATIONS
D.C. Switchgear Range
Type MBS
D.C. SWITCHGEAR RANGE / TYPE MBS
A domain of expertise
With a complete range of equipment and a leading expertise in
DC traction power substations, Sécheron SA is a world leader
and major partner for electrification of DC traction networks.
Covering all activities from calculation, network design and
engineering, up to the production of the DC Systems, Sécheron
SA can offer customers and partners tailor made solutions
based on a modular concept and standard products.
Our equipment is developed on world leading technology
and proven worldwide design and acceptance. In-house
technology covers all key devices applied in the DC Systems
(Rectifiers, DC HSCB, Disconnect Switches, Protection Relays,
Measuring Amplifiers, etc.).
HSCB D.C. Switchgear: Description
DC traction networks require safe power distribution and reliable control systems.
The MBS breaker panel is based on Sécheron traction DC protection experience
and contains proven technology components.
The DC switchgear serves as the control and protection equipment for the DC
power distribution.
The DC breaker panel type MBS is a modular concept cubicle which integrates
different functions and equipment in three compartments:
• Rear high voltage busbar compartment
• Protection and control system
• High speed circuit breaker
MBS Feeder Panel
Rear high voltage busbar compartment
The high voltage compartment is at the rear of the cubicle. It contains the main
busbar, cable connections and disconnector switches where applicable.
Protection and control system
The protection and control system is located at the front of the cubicle. This low
voltage compartment contains low voltage components and ensures the protection
through the SEPCOS, protection and control relay.
High speed circuit breaker trolley
The high speed circuit breaker (Sécheron UR series) is mounted on a removable
four-wheeled trolley which can be easily withdrawn from the cubicle. The trolley
also contains the current measuring and line test device equipment. The HSCB is
connected to the auxiliary circuits thanks to an unpluggable multiple connector and
the breaker is connected to the high-voltage busbars by power finger connectors.
All trolleys are exchangeable by one of the same type and are easy to manoeuvre.
MBS Feeder Trolley
2
Proven Sécheron components are applied for all major functions in the MBS
cubicle.
HSCB D.C. Switchgear: Characteristics
Symbol
Unit
Cubicle type
MBS 08
MBS 05
Rated service current
INe
[A]
2600
4000
Rated voltage
UNe
[VDC]
900/1800
UR26
5.5/9.2
Circuit breaker type
4000
6000
8000
900/1800
3600
900/1800
900
UR36/40
UR40
UR45/60
UR80
5.5/9.2
18.5
5.5/9.2
5.5
Power frequency withstand voltage
Active part to earth (50 Hz, 1min)
Main busbar
[kV]
Ie
Busbar rating: connection
Rated short-circuit current
<[A]
INss/ÎNss
[kA]
TNc 100 ms
(900V)
TNc 31.5 ms (1800V)
2500
4000
125/178
63/90
6000
8000
125/178
125/178
134/190
80/113
80/113
40/57
<T
Typical weight
Dimensions (WxDxH)
IP30 / IP20 or IP42*
[°C]
[kg]
[mm]
->
4000
TNc 31.5 ms (3600V)
Protection degree (general/roof)
Ambient temperature range
up to 11 kA
<500
550
<-
-5 ... +40
->
->
700
650
500 or 800x1400x2200
700
->
**IP42: option.
For further characteristic: refer to the data sheet for the individual circuit-breaker type.
Designed according to standard specifications EN50123 and IEC61992.
HSCB D.C. Switchgear: Composition
Unique feature:
Key components of the switchgear are designed and manufactured by Sécheron and are fully compatible.
Protection and Control Unit:
SEPCOS
Touch Screen Interface:
SEPCOS DISPLAY
High Speed Circuit Breaker:
UR26 to UR80
Voltage Measuring
Amplifier: VM10/12
Disconnector:
SWS
Current Measuring
Amplifier: MIU10
3
D.C. SWITCHGEAR RANGE / TYPE MBS
Safety features / functioning
The withdrawable high speed circuit breaker trolley has four positions:
• Service position
• Test position
• Disconnected position
• Removed position
When the trolley is in service position, the front high voltage door is locked
and it is not possible to access the trolley. When high voltage is applied to the
breaker, it must be open before the trolley can be moved from service to test
position. The trolley is moved from one position to another either manually by
an external handle or electrically via the SEPCOS touch screen display. In this
way, user’s security is ensured. Trolleys can be encoded to ensure that they
cannot be exchanged for a trolley of another type.
The MBS compartmented switchgear requires limited maintenance with easy
access to all parts. Active equipment is located on the trolley.
Advantages: • Very compact with minimum depth.
• Possibility to install cubicles directly against a wall.
• Front access to all equipment.
Motorized trolley:
This new feature is an available option that allows the trolley to be disconnected
in remote mode, thus replacing the line isolating disconnecting switch.
Service and test positions
Main dimensions
500 or 800
1. Circuit-breaker
breaker trolley
1075
100
2. Withdrawable
1400
3. Low-voltage
325
3
compartment
(protection and
control circuits)
8
4. Main plugs (power
circuit)
10
5. Shunt (current)
1400
6. Current measuring
7
amplifier
7. Voltage measuring
8. High voltage
11
2200
amplifier
9. Output cable
10. Bypass busbar
(option)
11. Disconnector
1430 (1605*)
compartment
1
2
13
(option)
12. Main busbar
13. Motor (option)
* For 3600 VDC cubicle.
4
12
4
5
9
6
Disconnecting D.C. Switchgear: Description
Disconnector cubicles are applied for incoming DS, negative DS or coupling DS.
The system contains two compartments:
• High voltage compartment
• Low-voltage compartment
Each compartment has a separate front door and can be mounted against the wall.
Cable connection is possible from the bottom or top.
Disconnectors are rated 2000A, 4000A, 6300A and 8000A.
Incoming DS Cubicle:
Incoming DS cubicles isolate the positive high voltage output transformer/rectifier
group from the feeder DC distribution bus.
Disconnectors may have single or double poles. Double poles are used to
disconnect the positive and the negative pole simultaneously. Operation may be
motorized or manual. There are four different sizes: 500mm, 800mm, 1200mm or
1600mm. Incoming DS cubicles may contain up to 4 disconnectors.
Negative DS Cubicle:
Negative DS cubicles isolate the negative pole of the rectifier groups from the return
current of the network (rail). Operation may be motorized or manual. There are four
different sizes: 500mm, 800mm, 1200mm or 1600mm. Negative DS cubicles may
contain up to 4 disconnectors.
Coupling DS Cubicle:
Coupling DS cubicles subdivide the DC switchboard into separate busbar sections.
Operation may be motorized or manual, size is 500mm.
Disconnecting Switch cubicle
Below are the different configurations according to the cubicle dimensions and types:
Negative DS panel
Incoming DS panel
60
00
00
00
40
20
00
A
A
A
A
A
-1
-1
-1
-1
-1
-1
-2
-2
-1
-1
-1
po
1
le
le
po
1
le
po
le
po
le
po
s
le
po
s
le
le
le
po
le
po
po
po
le
po
1
00
A
A
A
A
A
A
1
60
40
00
00
00
00
00
00
20
40
20
60
40
20
1
Coupling DS panel
2200
500
50
0
1
1
N.A.
N.A.
N.A.
1
00
14
Disconnecting Switch SWS
2200
800
80
0
2
2
2
1
1
2
2
2
1
1
1
4
4
4
1
1
4
4
4
1
1
1
00
14
2200
1200/1600
12
00
00
14
Disconnector cubicle Configurations
Disconnecting Switch SWS
5
D.C. SWITCHGEAR RANGE / TYPE MBS
Protection Relay
SEPCOS is a protection and control unit that is applied to the outgoing feeder
or the incoming HSCB cubicles in the DC traction substation.
Main features:
• Modular PLC concept, PLC programming, IEC61131 normalized
programming.
• Fully approved in railway substation environment EN50255-22.
• High noise immunity thanks to sampling rate at 40 microseconds and 16
bits A-D converter.
Protection functions:
• All typical protection functions (e.g. Function DDL +/-, Imax +/-, etc.).
Control functions:
• HSCB ON / OFF control with electric or magnetic holding.
• Intertripping, automatic reclosing, anti-pumping, line test function.
• External synchronization of the PLC, measurement supervisor control.
Open to all customer Network and protocols:
• TCP/IP: MODBUS-TCP
• Specific TCP/IP based power distribution protocols:
- IEC60870-5-104
- DNP3
- IEC61850
• Fieldbus: MODBUS-RTU, Profibus DP
SEPCOS in a low-voltage compartment
The SEPCOS may be controlled and parametrized
through a user friendly 7” color touch screen display which
is located on the front door of the cubicle.
All functions are available through a web server (S-Web),
including visualization of trends.
Products and Services
Sécheron provides complete DC substations systems including:
• Transformer-rectifier group
• Inverter group for energy recovery
• Energy storage systems
• DC switchgear including:
- DC HSCB cubicles
- Disconnector cubicles
- Contactor cubicles
• Voltage limiting devices
• Protection and control systems
• Human Machine Interfaces
Sécheron also provides services in order to support customers in network design and installation of our systems:
• DC System Engineering
• Dynamic simulation of complete networks
• Short-circuit, earthing circuit and harmonic calculation
• Supervision of installation and commissioning
• In line and field testing
6
MBS line up
Complete DC switchgear can be provided in line with MBS cubicles as shown below.
HSCB Cubicles: Applications
1. Line feeder
MAIN BUSBAR
MAIN BUSBAR
MAIN BUSBAR
2. Line feeder with
isolating switch
E/M
SEPCOS
E/M
Line Test
earthing switch
4. Rectifier breaker
I
bypass
E/M
I
MIU10
MIU10
U
U
U
VM10
VM10
VM10
M
SEPCOS
I>
I
MIU10
5. Line feeder with
SEPCOS
I>
Line Test
I>
Line Test
3. Line feeder with
6. Line feeder with
1
2
MAIN BUSBAR
E/M
3
MAIN BUSBAR
MAIN BUSBAR
BY-PASS BUSBAR
BY-PASS BUSBAR
SEPCOS
E/M
SEPCOS
E/M
I>
Line Test
I>
I
MIU10
I
MIU10
5
I
MIU10
M
4
SEPCOS
I>
Line Test
bypass and
isolating switch
M
U
U
VM10
VM10
M
6
Installation of lightning arrester for outgoing feeder is available upon request.
7
Standards
According to standards:
• IEC61992-2:2006
• EN50123-2:2003
• IEC60980 (Seismic tests)
Approved type test reports available.
Main features related to MBS05 breaker panel
Main features related to MBS08 breaker panel
Rated voltage (UNe)
Rated service current (INe)
Rated making & breaking capacity (ÎNss/INss)
Rated track time constant (TNc)
Duty classes
900 VDC
4000 A
177/125 kA
100 ms
f, e, d
Rated voltage (UNe)
Rated service current (INe)
Rated making & breaking capacity (ÎNss/INss)
Rated track time constant (TNc)
Duty classes
900 VDC
8000 A
190/134 kA
100 ms
f, e, d
Rated voltage (UNe)
Rated service current (INe)
Rated making & breaking capacity (ÎNss/INss)
Rated track time constant (TNc)
Duty classes
1800 VDC
4000 A
113/80 kA
31.5 ms
f, e, d
Rated voltage (UNe)
Rated service current (INe)
Rated making & breaking capacity (ÎNss/INss)
Rated track time constant (TNc)
Duty classes
3600 VDC
4000 A
57/40 kA
31.5 ms
f, e, d
900 VDC / 4000 A
3600 VDC / 4000 A
Internal Arc Test
Main features related to MBS05 breaker panel
SG817736BEN_E00-09.14
Rated voltage (UNe)
Rated insulation voltage (UNm)
Prospective current under arcing conditions (Îp arc/Ip arc)
Permissible arc duration (tarc)
Degree of protection
Sécheron SA
Rue du Pré-Bouvier 25
1217 Meyrin - Geneva
CH-Switzerland
900 VDC
1800 V
71/50 kA
250 ms
IP20
Tel: +41 (0)22 739 41 11
Fax: +41 (0)22 739 48 11
[email protected]
www.secheron.com
This document is not contractual and contains information corresponding to the level of technology at the date of printing. Sécheron reserves the right to modify and/or improve the product, whose
characteristics are described in these documents, as required by new technology at any time. It is the purchaser’s responsibility to inform himself, no matter what the circumstances, of the product’s
maintenance conditions and requirements. Sécheron reserves all rights, especially those arising from our “General Delivery Conditions”.
Copyright© 2007 Sécheron SA

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