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

电力系统中使真空断路器切除无功并联电容器时,容易产生重燃过电压,严重影响并联电容的安全运行。

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

次重燃使得过电压频率和幅值均升高,会对变压器等绕组型设备绝危害。

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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电感,对减小真空开关重燃过电压的陡度是有效的。

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