GN30-12 Series Indoor HV Rotation Disconnecting Switches
GN30-12 series indoor HV rotation disconnecting switches is a new type disconnecting switches , which special designed for XGN2-12 HV switchgear , with rated voltage 12kV and three phase AC 50Hz indoor facility. It mainly openclosed circuit on condition with voltage and no load , make circuit breaker and main bus reliable and effective with disconnecting and earth, to guarantee safe for maintenance staff and component , avoid accident .
The use of environmental conditions
1.Ambient temperature: not higher than +40 ℃ , not less than -15℃ (at -30 ℃ to allow storage and transportation).
2. Altitude: not exceed 1000m.
3. Relative humidity: daily average of not more than 95%, month average of not more than 90%. saturated vapor pressure daily average of not more than 2.2 kPa, month average not more than 1.8 kPa.
4. Earthquake intensity: not more than eight.
5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.
Mainly Date of Operating mechanism
Item | Units | Data | ||
Rated voltage | kV | 12 | ||
Rated curre | A | 400/630/1000/1250 | ||
4s thermal stability current | kA | 12.5/20/31.5 | ||
Dynamic stability current | kA | 31.5/50/80 | ||
Inter phase center | mm | 210/230/250 | ||
Rated Isolation lever | 1min working tolerance frequency voltage | kV | Phase earth and inter phase | 42 |
Lightning Impulse voltage tolerance | 75 | |||
