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通过对SS9型电力机车在极低环境温度下运行中LCU输出线481、485电压异常的故障原因进行分析,提出了改进的具体措施。实践证明,经过改进后再未发生同类故障,达到了良好的效果。
Based on the analysis of the failure causes of voltage anomalies of LCU output lines 481 and 485 in the operation of SS9 electric locomotive at extremely low ambient temperature, some specific measures for improvement are put forward. Practice has proved that after the improvement has not occurred in the same kind of failure, to achieve good results.