摘要
根据现场经常发生的外电网电力变压器一次侧断相后,现有电源屏断相保护电路不能正常动作,不能转换到另外一路电源供电的问题,进行了模拟测试和原因分析,提出了改进建议和解决方法。
There is one problem in existing power supply panel that after the shortage of primary phase of power transformer, the phase-cutting protection circuit cannot work well, the power supply panel fails to switch to the other power. Therefore, this article puts forward the suggestions and solutions after making simulation test and cause analysis.
出处
《铁路通信信号工程技术》
2008年第5期59-61,共3页
Railway Signalling & Communication Engineering
关键词
外电网
断相
电源屏
解决方法
Power network, Shortage of phase, Power supply panel, and Solution
