SUBSTATIONS

D.C. Switchgear Range Type MBS ( IEEE / ANSI standards )

D.C. SWITCHGEAR RANGE / TYPE MBS ( IEEE / ANSI STANDARDS )

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The high speed circuit breaker (Sécheron UR series) is mounted on a removable four-wheeled trolley which can be easily withdrawn from the cubicle.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 500

MBS 800

Rated service current

INe

[A]

2000

4000

6000

8000

Rated voltage

UNe

[VDC]

800/1600

800/1600

800/1600

800

UR26

UR46

UR60

UR80

5.5/9.2

5.5/9.2

5.5/9.2

5.5

Circuit breaker type Power frequency withstand voltage Active part to earth (50 Hz, 1min) Main busbar Rated short-circuit current (800V)

[kV] Ie INss/ÎNss



*IP42: option. For further characteristic: refer to the data sheet for the individual circuit-breaker type.

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

Current Measuring Amplifier: MIU10

Disconnector: SWS 3

D.C. SWITCHGEAR RANGE / TYPE MBS ( IEEE / ANSI STANDARDS )

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

2. Withdrawable

19.7 or 31.5 in

3.9 in

1. Circuit-breaker

55.1 in 42.3 in

breaker trolley

3. Low-voltage

3

compartment (protection and control circuits)

8

4. Main plugs (power circuit)

10

5. Shunt (current)

7

6. Current measuring amplifier

6

7. Voltage measuring

compartment

9. Output cable 10. Bypass busbar (option)

11. Disconnector (option)

12. Main busbar 13. Motor (option)

* For 3600 VDC cubicle. 4

56.3 in (63.2 in*)

8. High voltage

11 86.6 in

amplifier

12.8 in

1

12 4 5

2 13 9

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: 19.7 in, 31.5 in, 47.2 in or 63 in. 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: 19.7 in, 31.5 in, 47.2 in or 63 in. 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 19.7 in.

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

86.6 in

19.7 in

19

.7

in

.1

55

1

1

N.A.

N.A.

N.A.

1

in

Disconnecting Switch SWS

86.6 in

31.5 in

.5

in

.1

55

2

2

1

1

2

2

2

1

1

1

4

4

4

1

1

4

4

4

1

1

1

in

47.2 in / 63 in

86.6 in

31

2

47

.2

in

.1

55

in

Disconnector cubicle Configurations

Disconnecting Switch SWS 5

D.C. SWITCHGEAR RANGE / TYPE MBS ( IEEE / ANSI STANDARDS )

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 IEC60255-22. • 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

earthing switch

E/M

SEPCOS

I>

4. Rectifier breaker

E/M

I

bypass

SEPCOS

I>

E/M

I

MIU10

MIU10

U

U

U

VM10

VM10

VM10

M

SEPCOS

I>

I

MIU10

5. Line feeder with

Line Test

3. Line feeder with

Line Test

Line Test

isolating switch

6. Line feeder with 1

2

E/M

MAIN BUSBAR

MAIN BUSBAR

BY-PASS BUSBAR

BY-PASS BUSBAR

Line Test

MAIN BUSBAR

3

SEPCOS

I>

I

SEPCOS

I>

I

MIU10

4

E/M

Line Test

bypass and isolating switch

M

5

E/M

SEPCOS

I>

I

MIU10

MIU10

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), C37.14-2002, C37.16-2009, C37.20.1-2002. Approved type test reports available.

Rated continuous current test reports 6 kA

8 kA

800 VDC 2000 A 200 kA 120 kA, 250 ms 120 kA 125 VDC IP20

800 VDC 4000 A 200 kA 120 kA, 250 ms 125 kA 125 VDC IP20

800 VDC 6000 A 200 kA 120 kA, 250 ms 120 kA 125 VDC IP20

800 VDC 8000 A 200 kA 120 kA, 250 ms 120 kA 125 VDC IP20

800 VDC 8000 A 200 kA 120 kA

MBS 800

MBS 800

800 VDC 6000 A 200 kA 120 kA

Intermal Arc

MBS 500

Rated maximum voltage Rated continuous current Rated peak current Rated-short-circuit current

MBS 500

Main features

Short-time withstand current

Short-circuit current withstand test

8 kA

4 kA

4 kA

2 kA

Rated maximum voltage Rated continuous current Rated peak current Rated short-time current Rated-short-circuit current Rated control voltage Degree of protection

2 kA

6 kA

Main features

Main features

Short-time withstand current test Rated maximum voltage Rated continuous current Rated peak current of the main busbar Rated short-time current Rated control voltage

800 VDC 6000 A 200 kA 120 kA, 250 ms 125 VDC

SG830926BEN_A01-04.15

Main features

Internal Arc test Rated voltage Rated insulation voltage Prospective current under arcing conditions Permissible arc duration Degree of protection

Sécheron SA Rue du Pré-Bouvier 25 1217 Meyrin - Geneva CH-Switzerland

900 VDC 1800 A 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