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General
The JN 15-12 indoor high-volt earthing switch is in line with GB 1985 and IEC60129, it is applied to the power system of 12Kv/40.5kV and lower. AC 50Hz for mating every model of high-volt switch cabinet in order to realize function of earthing protection.
This switch is entirety type ground switch,it is composed of chassis,post insulator,fixed contact,moving contact,chief axis and fast spring ect..Additonally,the electrid indication appliance can be provided for customer if customers need it.
Type meaning.
Technical parameter
Item | unit | Data | ||
Rated voltge | kV | 12 | 40.5 | |
Rated little withstand current | kA | 31.5. 40 | 31.5 | |
Rated short-circuit duration | S | 4 | 4 | |
Rated short-circuit close current | kA | 80,100 | 80 | |
Rated peak value withstand current | kA | 80.100 | 80 | |
Interelectrode distance | mm | 150,165,210,230,250,275 | 350,385,460 | |
Rated insulation level | 1 min industrial fequency withstand voltage | kV | 40/49 | 95 |
Thunder impulse withstand voltage | kV | 75/85 | 185 | |
Indoor High Voltage Switchgear Earthing Switch 33kv Switchgear JN15-12/31.5