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1故障现象在排列进路后,若又立即取消所排的进路,进路中没有来得及转换到位的道岔会立即停止转换,停在四开状态。处理中发现这是个混电故障,锁闭封连采集电路中的KF没有完全隔离,混入KF15V电压到DGJ上,造成1DQJ的自闭磁场受到削弱,自闭电路无法保持,道岔提前停转。2查找分析首?
1 Symptoms After the arrangement of the way, if immediately cancel the row of the route, the transition did not have time to switch places will immediately stop the switch, stop in the four open state. The treatment found that it was a hybrid fault. The KF in the latch-up acquisition circuit was not completely isolated. The KF15V voltage was mixed into the DGJ, which impaired the self-closing magnetic field of 1DQJ. The self-closing circuit could not be maintained and the turnout stopped ahead of schedule. 2 Find the first analysis?