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.
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.
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