Original
By certification 
SIEMENS NXAirS-40.5 kV Air Insulated Withdrawable Metal-clad medium-voltage Switchgear
1. Characteristics:
All the switch operations can be carried out only under high-voltage compartment door closed.
Reliable mechanical interlock is installed between grounding switch and vacuum circuit breaker handcart.
All the parts and components installation heights meet the requirements of human engineering.
Options: Capacitive electric indicator can be used to detect feeder or bus presence of power.
2. Electric Parameters
·Rated voltage |
kV |
40.5 |
·Rated frequency |
Hz |
50 |
·Rated short-time power frequency withstand voltage 1min (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 |
Overall Dimensions
Width |
mm |
1200/14001） |
Height |
mm |
2800/30102） |
Depth |
mm |
2650/34503） |
Weight |
kg |
1800～2300 |
Low-voltage compartment dimensions
Standard Type |
|
Width mm |
1200/14001） |
Height mm |
705 |
Depth mm |
450 |
Cable Compartment Dimensions
Width mm |
1200/14001） |
Height mm |
1280 |
Cable terminal above ground (mm) |
≥750 |
3. Structure
| 1. Low-voltage compartment door lock | 2. Manual operational hole of energy storage |
| 3. High-voltage compartment door lock | 4. Handle for opening high-voltage compartment door |
| 5. Observation hole of circuit breaker closing/open status, energy storage and counter | 6. Observation hole of handcart working/test position status indication |
| 7. Circuit breaker closing button | 8. Circuit breaker breaking button |
| 9. Grounding switch mechanical position indication and operational hole | 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. Dynamic contact | 20. Contact box |
XD HI-TECH, established 2007, is one of the excellent manufacturers in China. Come and find siemens nxairs-40.5kv gas/air insulated medium voltage switchgear/switchboard distributors from our factory. With high precision, and good performance, our custom products have a wide application field. Welcome to wholesale our quality products and the PDF display is also offered.
