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| Pilot relay TRANSLAY for multi-ended system |
| Liu Jiankai |
| Schneider Electric (China) Co., Ltd, Shanghai Branch, Shanghai 201203 |
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Abstract This paper presents a novel differential protection for the multi-ended system like T connection system by using the existing pilot relay TRANSPLAY. The pilot wires of the TRANSLAY relays at each end would be connected in parallel and then the new characteristic formula would be used for the relay to detect the fault in the protected zone. Theory analysis and simulation studies show that the new scheme is correct. It shows that it is easy to implement the scheme.
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Received: 05 November 2019
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[1] 贺家李, 宋从矩, 李永丽, 等. 电力系统继电保护原理(增订版)[M]. 北京: 中国电力出版社, 2004.
[2] 苏宇铿. 导引线纵联电流差动保护[M]. 北京: 水利电力出版社, 1990.
[3] 刘建凯, 董新洲, 薄志谦. 有分支配电线路无通道保护研究[J]. 电力系统自动化, 2003, 27(1): 37-41.
[4] 刘建凯, 郁哲民. 基于比相原理的多端线路导引线差动保护装置[P]. 中国: CN103474971A, 2013-12- 25.
[5] 张宁, 董新洲, 薄志谦, 等. 输电线路综合电流差动保护方案的研究[J]. 电力科学与技术学报, 2007, 22(4): 16-19.
[6] Type MBCI Relay: Translay ‘S’ differential feeder and transformer feeder protection technical manual[Z]. Schneider Electric Ltd, 2005.
[7] 陈晓东. 电磁场感应和地电位升高对导引线保护的影响[J]. 太原理工大学学报, 2000(1): 56-59.
[8] Zhang N, Dong X Z, Bo Z Q, et al.Universal pilot wire differential protection for distribution systems[C]// IET 9th International Conference, 2008: 224-228.
[9] 王芊, 刘国伟. 光纤差动保护的导引线接口装置[J]. 电力系统保护与控制, 2009, 37(12): 86-88.
[10] 张俊, 钟建伟, 辛康康, 等. 基于故障波头的多端差动保护向量对时修正算法[J]. 电气技术, 2019, 20(3): 37-42. |
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2020, Vol. 21 
