GN38-12 Indoor disconnector (isolator) 12KV
The GN38-12 isolation switch is suitable for indoor devices with three-phase AC 50Hz and rated voltage of 12KV. Used for switching on and off high-voltage equipment with voltage and no load.
Product Features
Adopting a busbar through wall type integrated insulation base plate, completely separating the switchgear, busbar compartment, and circuit breaker compartment
Equipped with a different axis manual integrated operating mechanism, it not only ensures the mechanical performance of the isolation switch, but also reduces the operating height for easy operation
Single breakpoint three station structure ensures reliable switch action
Equipped with complete mechanical interlocking devices
Coaxial "refers to the fact that the transmission main shaft and the operating mechanism shaft are the same shaft
'Different shaft' refers to the fact that the transmission main shaft and the operating mechanism shaft are two shafts, with a connecting rod or gear transmission in the middle
The "integrated mechanism" refers to the integrated structure of the isolation switch and operating mechanism, with its external dimensions, installation method, and performance indicators carefully adjusted before the product leaves the factory.
Technical parameter
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Item |
Model |
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GN38-12/ 400-12.5 |
GN38-12/ 630-20 |
GN38-12/ 1200-31.5 |
GN38-12/ 1250-31.5 |
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|
GN38-12D/ 400-12.5 |
GN38-12D/ 630-20 |
GN38-12/ D1200-31.5 |
GN38-12D/ 1250-31.5 |
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Rated voltage(KV) |
12 |
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|
Rated current(A) |
400 |
630 |
1000 |
1250 |
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|
thermal stability current(KA) |
12.5 |
20 |
31.5 |
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Thermal stabilization time(S) |
4 |
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Dynamic stability current(KA) |
31.5 |
50 |
80 |
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|
Rated insulation level |
Lightning impulse voltage(KV) |
Interphase,Ground75,Fracture85 |
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1min power frequency voltage(KV) |
Interphase,Ground42,Fracture48 |
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