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| 摘要: |
| 通过介绍备用电源自动投入(简称备自投)装置的基本要求和实现条件,结合近年来备自投装置现场运行情况,列举2起因特殊故障条件导致微机备自投装置不正确动作的事例:主供电源缺相故障,备自投拒动;站内直流瞬间失电,备自投误动。总结造成2起事故或不正常动作发生的原因,通过分析和反措,改进备自投装置的合闸逻辑回路使其满足在特殊故障条件下的可靠动作。 |
| 关键词: 备自投装置 合闸回路 缺相保护 直流失电 改进 |
| DOI： |
| 分类号:TM762.1 |
| 基金项目: |
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| Improvement of closing circuit of automatic bus transfer equipment |
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LU Yu TAI Nengling
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| Abstract: |
| The basic requirements and realization conditions of automatic bus transfer equipment are introduced.Combined with its site operation in recent years,two incidents under special fault conditions are illustrated:the phase break fault of main power source causing rejection of operation and the instantaneous direct-current loss causing improper operation.The reasons are analyzed and its closing logic circuit is improved. |
| Key words: automatic bus transfer equipment closing circuit phase break protection direct-current loss improvement |
