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SS_3型电力机车调压开关拉弧(也称放炮)的表现是:调压开关弧触头(有时主触头)严重烧损,整流柜上熔断器熔断及晶闸管击穿等。该型机车在我段及其它段投入运用初期,由于多种原因造成的主断路器因故障(主阀卡位,分闸线圈烧损等)断不开,加之电子产品的早期失效,调压开关经常放炮。但未发现一次是因为调压开关低压联锁故障造成的。对此类故障的原因,现在基本上有了共识:多种原因造成的脉冲丢失后的盲目退级。实际上,运行中一旦脉冲丢失,从监视板开始运算,并发出指令使17号保护板上的9DYJ吸合,此时若操纵调压开关,则382线有电,8DYJ吸合使10DYJ吸合,接通主断路
SS_3 electric locomotive voltage regulator switch arc (also known as blasting) performance is: voltage regulator switch arc contacts (sometimes the main contact) severe burning, rectifier fuse blown and thyristor breakdown and so on. The locomotive in my segment and other sections put into operation early, due to a variety of reasons for the main circuit breaker fault (main valve card, sub-gate coil burnout, etc.) off, combined with the early failure of electronic products, pressure Switch often blasting. But did not find it because of the low voltage interlocking failure of the pressure switch. The reason for such failures is basically a consensus: blind retreat after a loss of pulses due to a variety of causes. In fact, once the pulse is lost in operation, it starts to operate from the monitoring board and instructs the 9DYJ on the No. 17 protection board to pull in. At this time, if the voltage regulation switch is operated, the 382 line has electricity and the 8DYJ pull-in causes the 10DYJ to pull in , Connected to the main circuit