In a10kV distribution system,when shunt ca-pacitors are switched off by vacuum circuit breakers,restrike overvoltage often occurs.

力系统中使用真空断路器切除无功补偿用容器时,容易产生重燃过,严重影响容的安全运行。

Moreover, the proposed control system is of some fault diagnosis and protection functions, such as overcurrent, overvoltage-undervoltage, overtemperature and parameter overrun.

同时，该源控制系统还具有过流、过欠、过热、参数超限等故障诊断与保护功能。

Multiple reignition makes the frequency and amplitude of overvoltage increase and might do harm to transformer coils by cumulative effects for its surge steepness.

多次重燃使得过频率和幅值均升高，会对变器等绕组绝缘造成危害。

This paper describes the mechanism that multiple reignition of breaker can restrain or increase progressively the switching-overvoltage during switching off inductive or capacitive load.

论述了开关在开断感性或容性负载时多次重燃对过的抑制或递升机理。

It is showed that magnetic rings of amorphous material on a conductor can notably increase its inductance and make effective suppression on the steepness of the vacuum restriking overvoltage.

试验显示,在导线上套上一串非晶材料磁环能够显著增加线路感,对减小真空开关重燃过的陡度是有效的。