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在白溪水电站励磁系统改造及其试运行过程中,先后出现转子引出线带电、起励时报转子一点接地以及灭磁开关跳闸后不能电动合闸等故障。详细分析故障原因,发现这些故障分别是由过早投入转子一点装置、直流系统绝缘降低、灭磁开关合闸回路电阻配置不合理造成,及时采取措施后,上述问题得以解决。
In the transformation of Baixi hydropower station excitation system and its commissioning process, there has been a rotor outlet energized, the Times of Risheng rotor rotor grounding and deactivation switch can not be electrically closed after the trip and other failures. Detailed analysis of the cause of the malfunction found that these failures are caused by too early into the rotor a little device, DC system insulation to reduce, deactivation switch closing circuit resistance configuration is not reasonable, timely measures to take, the above problems can be solved.