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FN7-12DR AC high-voltage load switch is a new type of gas-generating indoor high-voltage load switch, which is applicable to three-phase AC power system with AC 50Hz and rated voltage of 12KV, and is used for breaking load current and making short circuit current.
Work condition
Ambient air temperature is not higher than+40 ℃ and not lower than - 25 ℃.
Altitude shall not exceed 1000m.
Relative humidity: the daily average value is not more than 95%, and the monthly average value is not more than 90% The surrounding air shall not be obviously polluted by corrosive or combustible gases and water vapor No frequent severe vibration.
Structure
The load switch is composed of base, insulator, dynamic and static contact knife, arc extinguishing knife, arc contact and arc extinguishing chamber, transmission mechanism and spring energy storage mechanism, fuse and CS6 or disk operating mechanism, which can be connected with the grounding switch and has interlocking device.
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