



Description GW9 disconnector
Isolation switch is a switching device which is mainly used for "isolation of power supply, disconnection of work, and connection and disconnection of small current circuits" without arc extinguishing function.
Technical specification
Type | Nominal voltage (kV) | Rated current (A) | 2S Heat-resistant current (KA) | Shock current (KA) | Impulse withstand voltage (kV) | Power voltage | ||
To ground (kV) | Through insulation distance (kV) | To ground (kV) | Through insulation distance (kV) | |||||
(N) GW9-12/200 | 12 | 400 | 8 | 20 | 75 | 85 | 38 | 42 |
(N) GW9-12/400 | 12 | 400 | 8 | 20 | 75 | 85 | 38 | 42 |
(N) GW9-12/630 | 12 | 630 | 20 | 50 | 75 | 85 | 38 | 42 |
(N) GW9-12/1000 | 12 | 630 | 25 | 65 | 75 | 85 | 38 | 42 |
(N) GW9-12G/400 | 12 | 400 | 8 | 20 | 75 | 85 | 38 | 42 |
(N) GW9-12G630 | 12 | 630 | 20 | 50 | 75 | 85 | 38 | 42 |
(N) GW9-12G / 1000 | 12 | 630 | 25 | 45 | 75 | 85 | 38 | 42 |
(N) GW9-12G / 1250 | 12 | 630 | +31.5 | 80 | 75 | 85 | 38 | 42 |
Normal terms of service:
Ø Height: no more than 1000 m
Ø Temperature: not higher than 40 ℃ and not lower than -30 ℃,
Ø Wind pressure: no more than 700 Pa (equivalent to wind speed of 34 m / s)
Ø earthquake intensity no more than 8 degrees, absence of frequent shock points.
Ø Ice thickness no more than 10 mm
Ø No fire, explosion, serious dirt, chemical corrosion and strong vibration of the place.