Design and Implementation of a Gas Heating Device for 110 kV SF6 Live-tank Circuit Breakers
Aiming at addressing frequent alarm and latching of 110 kV live-tank SF6 circuit breakers under extremely cold weather,an insulating gas heating device consisting of heating module,temperature control module and power source module was designed,implemented,and tentatively applied.The device was indicated to automatically adjust the tempera-ture of the gas chamber according to temperature variation,consequently maintain SF6 gas pressure within the safe range,and thereby to be potentially effective in improving safe and stable operation of the circuit breaker.
SF6 live-tank circuit breakerlow-pressure alarminsulating gas heating device
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