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前不久,笔者了解到一起因电工不懂用电常识致使变压器被烧毁的事故,发人深思.1 事情经过该电工上任不到一年,负责一台30kV·A农灌变压器的管理.在最近一次浇地时,由于不懂安全用电常识,盲目超负荷用电,一下子带了6台5.5kW的潜水泵.时间不长,变压器便因过载出了故障,三相跌落保险落了两相,且有喷油痕迹.他到现场检查后不但不停运变压器查找原因,反而更换熔丝后再次试合跌落保险.这样带故障送电,最终造成了变压器大量喷油.因变压器内部短路引起线路支线开关过流跳闸,附近七八个行政村全部停
Not long ago, I learned that a common cause of electricians do not understand the cause of the accident was burned down the transformer, thought-provoking one thing after the electrician took office less than a year, in charge of a 30kV · A farming irrigation transformer management recently Once irrigated, because they do not understand the safety of electricity common sense, blindly overloaded electricity, all of a sudden with six 5.5kW submersible pump. Time is not long, the transformer will be overloaded fault, three-phase drop insurance fell two Phase, and fuel marks .He went to the scene not only after the transformer does not stop looking for the reasons, but replace the fuse again after the test drop insurance.This with a faulty power transmission, eventually resulting in a large number of transformers injection.Because the transformer internal short circuit Cause the line branch switch overcurrent trip, near the seven or eight administrative villages all stopped