基于Ansys静电场的含并联电容的超高压断路器电场分析及设计

Electric Field Analysis and Design for Extra High Voltage Circuit Breaker with Shunt Condenser Bank Based on the Ansys Electrostatic Field Module

计算了550 kV双断口间有无并联电容器组时的电压分布。另外,通过对含并联电容器组的550 kV断路器的灭弧室的电场计算分析和试验验证,指出了并联电容器设计时的合理布置至关重要,否则,很可能会引起电容器对金属屏蔽罩间的击穿。

The voltage distribution in a 550 kV circuit breaker with or without shunt condenser bank is calculated. The electric field distribution in the 550 kV circuit breaker with shunt condenser bank is further analyzed and tested, and the result reveals that rational configuration design of shunt condenser bank is very important to preventing the insulation breakdown between the shunt condenser bank and the metal screen.