| 750kV输电线路的特殊问题及其对线路保护的影响 |
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| 引用本文： | 李瑞生,索南加乐.750kV输电线路的特殊问题及其对线路保护的影响[J].继电器,2006,34(3):1-4. |
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| 作者姓名： | 李瑞生 索南加乐 |
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| 作者单位： | 许继电气保护及自动化事业部 河南许昌461000(李瑞生)，西安交通大学电气工程学院 陕西西安710049(索南加乐) |
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| 摘 要： | 根据西北电力公司提供的750 kV系统参数及电科院提供的动模试验方案,该文通过RTDS仿真得到750 kV输电线路的一些特殊问题。文中分析750 kV特高压输电线路的电容电流、暂态过程、过渡电阻、空载合闸充电、重负荷及空载、大短路电流对线路保护的影响,为研究和开发特高压线路保护装置提供一定的帮助和指导。
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| 关 键 词： | 电力系统 继电保护 输电线路 |
| 文章编号： | 1003-4897(2006)03-0001-04 |
| 收稿时间： | 2005-05-09 |
| 修稿时间： | 2005年5月9日 |
The special problems of 750 kV transmission line and its influences on relay protection |
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| LI Rui-sheng, SUONAN Jia-le.The special problems of 750 kV transmission line and its influences on relay protection[J].Relay,2006,34(3):1-4. |
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| Authors: | LI Rui-sheng SUONAN Jia-le |
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| Abstract: | Based on 750 kV power system parameters provided by Northwest China Electric Power Corporation and dynamic simulation project offered by Electric Power Research Institute,several special problems of 750 kV transmission line are presented through RTDS that should be paid attention.In addition,its influences to protective relaying are analyzed in this paper,such as capacitance current,transient process,transition resistance,connecting unloaded line to system,heavy load,and great fault current.It is expected that it can be helpful for studying or developing UHV transmission line protection device. |
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| Keywords: | electric power system relay protection transmission line |
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