| PMH-150型母线差动保护对旁路兼母联主接线不适应部分的改进 |
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| 引用本文： | 刘宏波,吴国威.PMH-150型母线差动保护对旁路兼母联主接线不适应部分的改进[J].电力系统保护与控制,2006,34(19):79-82. |
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| 作者姓名： | 刘宏波 吴国威 |
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| 作者单位： | 浙江大学电气工程学院 浙江杭州310027(刘宏波)，浙江省电力公司 浙江杭州310016(吴国威) |
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| 摘 要： | 浙江省220 kV变电所的220 kV主接线为旁路兼母联方式时,如果旁路兼母联断路器作为旁路断路器用,为了使各回路的正、副母隔离开关可以互为备用,要求正、副母线通过某个回路的正、副母隔离开关硬联,PMH-150型母差保护在原设计中不能适应这一运行方式。结合在某220 kV变电所工程中对这一问题的解决,提出了处理类似问题可供参考的方案。
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| 关 键 词： | PMH-150型母差保护 220kV变电所 旁路兼母联主接线 |
| 文章编号： | 1003-4897(2006)19-0079-04 |
| 收稿时间： | 2006-03-27 |
| 修稿时间： | 2006-04-11 |
Partial improvement of PMH-150 busbar differential protection when transfer CB acting as a bus-coupler |
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| LIU Hong-bo, WU Guo-wei.Partial improvement of PMH-150 busbar differential protection when transfer CB acting as a bus-coupler[J].Power System Protection and Control,2006,34(19):79-82. |
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| Authors: | LIU Hong-bo WU Guo-wei |
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| Affiliation: | 1. School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; 2. Zhejiang Electric Power Company, Hangzhou 310026, China |
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| Abstract: | When transfer CB acting as a bus-coupler is used in Zhejiang 220 kV substations and this CB is used as a transfer CB,to make the isolators of busbar I and II as backup to each other,it is required that the busbar I and II must be hardwired through one circuit's isolator I and II.However it is found that the busbar protection type of PMH-150 can not meet this requirement.In this paper,an applicable scheme is proposed based on a solution applied in a 220 kV substation. |
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| Keywords: | busbar protection PMH-150 220 kV substation transfer CB acting as bus-coupler |
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