GW1-12 Outdoor disconnector （isolating switch）12kv
GW1-12 630-20 outdoor AC high voltage disconnect switch (disconnect switch for short) is used to open and close circuit with voltage but no-load 12kV power system, the anti-pollution type can be used in the serious pollution area.
GW1-12 isolation switch is widely used in power systems, mainly used to disconnect or connect high-voltage circuits without load, so as to convert high-voltage lines, change the mode of operation, and implement safe electrical isolation of high-voltage electrical equipment such as bus bars and circuit breakers for maintenance. The safety, stability and high efficiency of the isolation switch make it widely used in the power industry.
Three pole linkage, good synchronous performance. It accords with standards of IEC62271-103.
Ambient condition:
- Altitude: ≤3000m;
- Ambient temperature:-30℃~+40℃;
- Wind speed:≤35m/s;
- Air pollution:IV;
- Earthquake intensity: ≤8 degree;
- Ice thickness:≤10mm
Technical parameter
|
Rated voltage kV |
12 |
|
|
Rated current A |
400, 630, |
|
|
Rated peak withstand current kA |
Disconnector |
25, |
|
Earthing switch |
63 |
|
|
Rated short-time withstand current and duration kA/s |
Disconnector |
25 |
|
Earthing switch |
25 |
|
|
Rated short-time power frequency withstand voltage (rms.) kV |
To earth |
42 |
|
Between breaks |
48 |
|
|
Rated lightning impulse withstand voltage (peak) kV |
To earth |
75 |
|
Between breaks |
85 |
|
|
Mechanical life |
times |
2000 |
|
Weight |
KG |
50 |
