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HXGN-12 Metal Enclosed Gas Insulated Switchgear

HXGN-12 Metal Enclosed Gas Insulated Switchgear

Description
The HXGN-12 SF6 insulated metal-enclosed switchgear is used for the three-phase AC power distribution unit with the rated voltage of 12KV and the rated frequency of 50Hz. It is often installed in the end of the industrial and civil ring networks, especially suitable for receiving and distributing power in the small secondary power distribution station, switching station, industrial and mining enterprises, urban residential areas, airports, railways, tunnels, high-rise buildings.

Main Technical Parameters
Item Data
Wire incoming and outgoing units Combined electrical unit Contact unit Metering unit
Rated voltage (KV) 12
Rated frequency (Hz) 50
Rated current of main bus (A) 630
Rated current (A) 630 125 630
Rated short circuit breaking current (KA) 31.5
Rated transfer current (A) 1700
Thermal stability current (valid value) (KA) Main loop, 4s 20 20
Ground connection loop, 2s 17.4 17.4
Dynamic stability current (peak) (KA) Main loop 50 50
Ground connection loop 43.5 43.5
Rated short circuit making current (peak) (KA) Load switch 50 50
Grounding switch
1min power frequency withstand voltage Phase to ground, phase to phase 42
Between isolated fractures 48
Lightning impulse withstand voltage (KV) Phase to ground, phase to phase 75
Between isolated fractures 85
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