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.
特高压长线路可能在线路中间接入并联电抗器，从而有效补偿线路电容电流，抑制空载线路过电压。提出了在特高压长线路中间带并联电抗器时的线路分相电流差动保护原理。
Shunt reactor could be installed in the middle segment of the UHV transmission line, in order to compensate capacitive current of transmission line and limit over-voltage of line without load.
额定电压下线路电流的平均值即是空载电流。
The average of the line currents at rated voltage is the no-load current.
小电流接地系统发生单相接地故障时，对零序分量而言，非故障线路相当于空载。
The healthy line is unloaded for zero-sequence component when a single-phase fault occurs in a non-solid earthed network.
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.
提出了汽车发动机启动系统测试的内容、方法及步骤，介绍空载试验、全制动试验、电磁开关试验的方法和线路。
This article presents the content, method and process of auto engine starting system test. This paper introduces many means and circuits of no-load test, overall braking test and solenoid switch test.
对黑启动过程中发电机带空载长线路可能出现的欠励限制动作导致的系统工频电压升高问题进行了研究。
This research aims to study over voltage induced by under-excitation limitation moves in black start of the power system.
对黑启动过程中发电机带空载长线路可能出现的欠励限制动作导致的系统工频电压升高问题进行了研究。
This research aims to study over voltage induced by under-excitation limitation moves in black start of the power system.
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