| 220kV备自投装置外部闭锁回路设计问题 |
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| 引用本文： | 黄剑. 220kV备自投装置外部闭锁回路设计问题[J]. 广东输电与变电技术, 2010, 12(2): 19-20 |
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| 作者姓名： | 黄剑 |
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| 作者单位： | 广东电网公司东莞供电局 |
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| 摘 要： | 通过对备自投外部闭锁回路设计的阐述,分析外部保护永跳动作误闭锁备自投及线路检修分合开关时启动手跳继电器误闭锁备自投的原因,提出改进措施。实践证明其正确有效。
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| 关 键 词： | 备自投 误闭锁 改进措施 |
Design of External Blocking Circuit in 220kV Standby Power Supply Automatic Connection Device |
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| Huang Jian. Design of External Blocking Circuit in 220kV Standby Power Supply Automatic Connection Device[J]. Guangdong Power Transmission Technology, 2010, 12(2): 19-20 |
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| Authors: | Huang Jian |
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| Affiliation: | Huang Jian(Guangdong Power Grid Corporation Dongguan Power Supply Bureau ) |
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| Abstract: | Through formulating the design of standby power supply automatic connecting device external blocking circuit, the reasons that caused miss block during tripping by permanent fault, and the false action of manually tripping relay due to power line maintenance outage switching are analyzed. The improvement measure is put forward. It is proven correct and effective in practice. |
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| Keywords: | Standby power supply automatic connection Miss block Improvement measure |
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