SIEMENS NXAirS-40.5kV Air Insulated Switchgear Cabinet - - PRODUCTS - Shaanxi XD HI-TECH Medium-low Voltage Apparatus Co., Ltd
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SIEMENS NXAirS-40.5kV Air Insulated Switchgear Cabinet

I.  General

Characteristics

Ø All the switch operations can be carried out only when high-voltage compartment door closed.
Ø Reliable mechanical interlock is installed between grounding switch and vacuum circuit breaker handcart.
Ø All the parts and components installation heights meet the requirements of human engineering.
Ø Options: Capacitive electric indicator can be used to detect feeder or bus is energized with electricity or not.


Interlocks

Ø Interlock meets GB3906-2006 and IEC 62 271-200 standards.
Ø Feeder grounding switch can only be operated under re-movable part on test and removed position.
Ø Removable part can be moved only under removable part on disconnecting status, grounding switch open and high-voltage door closed.
Ø It can be only operated when removable part is at test, working and removed position.
Ø High-voltage door can be opened only under removable part on test position.


Additional Safety Interlocks

Ø Mechanical code can avoid low current switch plugging in high current switchgear by mistake.
Ø Reliable mechanical interlock connects high-voltage compartment door and removable parts.

Ø Options: Removable part electromagnetic interlock.
Ø Options: Grounding switch electromagnetic interlock.
Ø Let handcart into or out of cabinet on test position only when grounding switch is on closed position.


II. Electric Parameters

Items

Unit

Parameters

Rated voltage

kV

40.5

Rated frequency

Hz

50

Rated short-time power frequency withstand voltage 1 min (interphase, to ground and between breaks)

kV

95 (118)

Rated lightning impulse withstand voltage (interphase, to ground and between breaks)

kV

190 (215)

Rated short-circuit breaking current

kA

25, 31.5

Rated short-time withstand current, 4s

kA

25, 31.5

Rated short-circuit closing current

kA

63, 80

Rated peak withstand current

kA

63, 80

Rated bus current

A

1250,2500,3150

Feeder current

A

1250, 2500


III. Overall Dimensions

Items

Unit

Parameters

Width

mm

1200/14001

Height

mm

2800/30102

Depth

mm

2650/34503

Weight

kg

1800~2300


IV. Low Voltage Compartment Dimensions

Items

Unit

Parameters

-

-

Standard type

Width

mm

1200/14001

Height

mm

705

Depth

mm

450


V. Cable Compartment Dimensions

Items

Units

Parameters

Width

mm

1200/14001

Height

mm

1280

Cable terminal above ground

mm

750

1. Cabinets used in substation

2. Switch cabinet with absorption device

3. Switch cabinet with back cabinet


1. low voltage compartment door lock

2. manual energy storage operational hole

3. high voltage compartment door lock

4. handle for opening high-voltage compartment door

5. observation hole of circuit breaker closing/opening status, energy storage, and counter

6. observation hole of handcart working/testing position status indication

7. circuit breaker closing button

8. circuit breaker opening button

9. mechanical position indication and operational of grounding switch

10. chassis in/out operational hole

11. pressure relief channel

12. bus

13. circuit breaker

14. chassis

15. grounding switch

16. connecting cable

17. current transformer

18. static contact

19. moving contact

20. contact box




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Company address: No. 2 Road Xi'an Weiyang West Ham District East Metro Symphony No. 6 Peace Industrial Park
Headquarters phone: 029-88248590/88890097 Fax: 029-88248591 postal code: 710086