给出了系统参数选择的依据，研究了工频过电压在不同条件下的限制方式。
It also gives out the criteria for selection of system parameters and studies the limit mode of over-voltage of working frequency under different conditions.
对有补偿和无补偿的超高压输电线路在工频过电压、操作过电压方面进行了对比性研究。
Comparative analysis of series compensated and non series compensated EHV transmission line in power frequency over-voltage and switching over-voltage is destriked in this paper.
高压交流输电线路单位长度充电功率很大，由于空载长线电容效应将会引起很高的工频过电压。
Because of large capacitive charging of long ac transmission line, capacitance reaction of no loaded line will cause severe overvoltage.
讨论了空载线路在电容效应下产生的工频过电压，并对并联电抗器抑制工频过电压的作用进行了理论分析。
The power frequency overvoltage of unloaded line because of the capacity effect is studied, and the effect of eliminating power frequency overvoltage using shunt reactors is analyzed.
研究和计算都表明，工频过电压幅值很大程度上决定于系统的运行方式，若系统运行方式不同，过电压可能会有很大差异。
The results show that power frequency over-voltage does have relationships with the operation mode to a great extent, and different operation modes may cause distinct values of over-voltage.
故可得出结论：在中性点绝缘系统中，因电磁式电压互感器饱和引起的过电压现象属于工频位移过电压。
Therefore, the over-voltage caused by the electromagnetic voltage transformer saturation in the system with insulated neutral belongs to shifting over-voltage.
介绍了三相五柱式消弧线圈的工作原理，单相电弧接地过电压的工频熄弧理论。
The principle of arc-suppression coil with three phases and five columns , and theory of power frequency extinguishing arcing were introduced.
传统的工频耐压试验是通过电压表，电流表，功率分析仪，频谱分析仪等等来分别测量波形及其各个参数的。
The traditional measure method of the power withstand test is to use the voltage meter, ammeter, power analyzer, frequency analyzer etc to measure the waveform and parameters of the power signals.
主要内容包括：工频暂时过电压，潜供电流，操作过电压，金属氧化物避雷器主要参数，特高压电气设备的绝缘水平等。
Paper covers temporary overvoltages, second arc current, switching overvoltage, major parameters of MOA and insulation level of UHV AC apparatus.
主要内容包括：工频暂时过电压，潜供电流，操作过电压，金属氧化物避雷器主要参数，特高压电气设备的绝缘水平等。
Paper covers temporary overvoltages, second arc current, switching overvoltage, major parameters of MOA and insulation level of UHV AC apparatus.
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