城市电网配电系统由于其覆盖的地域极其辽阔、运行环境极其复杂以及各种人为因素的影响，电气故障的发生是不能完全避免的。
Municipal power distribution system, with its extensive coverage, its operation environment is very complicated and all kinds of human factors, the happening of electrical accident is unavoidable.
微机接触网故障测距装置能在电气化铁路接触网发生各种短路故障后自动进行故障诊断和故障点精确定位。
Feeder fault locator will carry out the automatic fault diagnosis and precise fault loca-ting after different short-circuits faults have occurred in electrified railway feeder.
介绍有关领域知识，包括电气设备的各种绝缘试验、故障的种类、故障原因、故障监测与判断方法以及排除故障的对策。
Introduce some relevant knowledge, including all kinds of the insulation test, the sort of fault, the reason for fault, fault monitoring, the method of judgement, and the measures of trouble clearing.
介绍有关领域知识，包括电气设备的各种绝缘试验、故障的种类、故障原因、故障监测与判断方法以及排除故障的对策。
Introduce some relevant knowledge, including all kinds of the insulation test, the sort of fault, the reason for fault, fault monitoring, the method of judgement, and the measures of trouble clearing.
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