分析了高压电器及低压电器设备常见的故障现象及维修方法.包括电磁操作机构拒合,电磁操作机构拒分,电磁操作机构合后即分,液压操动机构油泵建压时间长,低压开关的故障排除及高压开关常见故障等.%This paper analyzed the common faults in high and low voltage electric appliances and their repair method, including the switch-on and switch-off of the electromagnetism operating mechanism, the immediate switch-off of the electromagnetism operating mechanism after the switch-on, the delay of pressure in the oil pump of the hydraulic mechanism, and trouble shooting in low voltage and high voltage switch, etc.
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机译：Etude sur l'evolution de la concentration dans l'industrie de la construction electrique en Belgique。建筑服装电器，收音机，电视，电子音乐（N.I.C.E。375）。 Fabrication d'appares electrodometitiques（N.I.C.E.376）=比利时电气工程行业集中发展的研究。建造电器，收音机，电视，电子电器（N.I.C.E.375）。家用电器的制造（N.I.C.E.376）。研究：集中和竞争系列的演变
