1results about How to "Avoid partial damage" patented technology

The utility model belongs to power transmission and transformation equipment field discloses a closing resistor structure for circuit breaker arc extinguishing chamber, including, two symmetrical support seat, insulating stick, its both ends are inserted into two symmetrical support seat respectively, polytetrafluoroethylene inner cover, its sleeve joint is on insulating stick, resistance string, by a plurality of resistance sheet is in series and is arranged along the axial direction of insulating stick and is formed, one end of resistance string is contacted with polytetrafluoroethylene inner cover, and the resistance sheet of both ends end portion of resistance string is connected with support seat respectively. Because the utility model passes through the polytetrafluoroethylene inner cover of installation between insulating stick and resistance string, can alleviate the collision between resistance sheet and insulating stick when vibrating, thereby avoiding the partial breakage of the inner hole edge of resistance sheet due to operation or transportation vibration, thereby improving product performance, ensuring the safe operation of power grid.