overvoltage

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

力系统中用真空断路切除无功补偿用并联时,易产生重燃压,严重影并联的安全运行。

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

多次重燃压频率和幅值均升高，会对变压等绕组型设备绝缘造成危害。

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压的陡度是有效的。