Liang HAO, Xinyue ZHANG. Fault Analysis and Solution of Main Circuit Breaker Abnormal Disconnection of HXD3C Locomotive[J]. Electric Drive for Locomotives, 2020,(2):153-156.
Liang HAO, Xinyue ZHANG. Fault Analysis and Solution of Main Circuit Breaker Abnormal Disconnection of HXD3C Locomotive[J]. Electric Drive for Locomotives, 2020,(2):153-156. DOI: 10.13890/j.issn.1000-128x.2020.02.033.
During the operation of HX,D,3C locomotive, there have been many consecutive problems of unexplained locomotive main circuit breaker opening, which seriously affects the normal operation of the locomotive. In order to solve this problem, according to the working principle of the main circuit breaker of the HX,D,3C locomotive and the logic relationship of the main circuit breaker opening in the microcomputer control of the HX,D,3C locomotive, the conditions that caused the abnormal disconnection of the main circuit breaker were elaborated in detail. Combined with the cases of faults actually occurred during the C5 maintenance and operation in depot of HX,D,3C locomotive, the main circuit breaker fault diagnosis methods and solutions were proposed and the fault diagnosis handling process was improved. The actual cases were implemented and good results had been achieved.