| 一起10kV分段备自投拒动事故的分析 |
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| 引用本文： | 余国雄,尹星光.一起10kV分段备自投拒动事故的分析[J].电力系统保护与控制,2007,35(5):75-78. |
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| 作者姓名： | 余国雄 尹星光 |
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| 作者单位： | 广东电网公司惠州供电局 广东惠州516001 |
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| 摘 要： | 介绍了某站10 kV备自投拒动的案例。对CSB-21备自投四个动作序列进行分析,说明了10 kV两段母线为同一电源端时,备自投动作不成功的原因。采用第三、四动作序列把无压闭锁改为有压启动,这种特殊的一次接线可有效地避免备自投拒动事故,进一步提高了供电可靠性。
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| 关 键 词： | 备自投 拒动 动作序列 闭锁 启动 |
| 文章编号： | 1003-4897(2007)05-0075-03 |
| 修稿时间： | 2006-08-28 |
Analysis of a 10 kV step-feed automatic back-up power supply device failure to operate |
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| YU Guo-xiong, YIN Xing-guang.Analysis of a 10 kV step-feed automatic back-up power supply device failure to operate[J].Power System Protection and Control,2007,35(5):75-78. |
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| Authors: | YU Guo-xiong YIN Xing-guang |
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| Affiliation: | Huizhou Power Supply Bureau,Huizhou 516001,China |
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| Abstract: | A case about non-operation of automatic bus transfer in a 10kV substation is introduced in this paper.By analyzing four action sequences of the CSB-21 automatic bus transfer equipment,causes of the non-operation of automatic bus transfer is explained when two 10kV buses share a same source.The special primary connection that changing non-voltage block to the voltage-startup in the third and the fourth action sequences can avoid effectively the accidents about non-operation of automatic bus transfer,which improves ulteriorly the reliability of the power supply. |
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| Keywords: | automatic bus transfer non-operation action sequence block startup |
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