| 三峡左岸电站500 kV线路保护应用中的问题及改进 |
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| 引用本文： | 徐宴珍,李志超. 三峡左岸电站500 kV线路保护应用中的问题及改进[J]. 水电自动化与大坝监测, 2007, 31(3): 39-41 |
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| 作者姓名： | 徐宴珍 李志超 |
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| 作者单位： | 三峡水力发电厂,湖北省宜昌市,443133 |
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| 摘 要： | 主要介绍三峡左岸电站500 kV输电线路保护装置在运行期间逐步暴露出的一些程序逻辑、通信、接线方面的问题,包括三龙线误发跳闸令、光纤不匹配、分脉冲对时和三江线零序极性、三万线保护载波通道开入/开出电源等问题,以及经相应的分析后程序、接线等方面的改进措施。
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| 关 键 词： | 三峡左岸电站 输电线路 保护装置 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 1900-01-01 |
Some Problems and Improvements of 500 kV Line Protection of Three Gorges Left Bank Hydropower Station |
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| XU Yanzhen,LI Zhichao. Some Problems and Improvements of 500 kV Line Protection of Three Gorges Left Bank Hydropower Station[J]. HYDROPOWER AUTOMATION AND DAM MONITORING, 2007, 31(3): 39-41 |
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| Authors: | XU Yanzhen LI Zhichao |
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| Abstract: | The problems concerning program logic,communication and connection found during the operation of 500 kV line protection devices of the Three Gorges Left Bank Hydropower Station are described,including miss-tripping of the Sanlong Line,unmatching of the optical fibers,per-minute pulse synchronization,zero-sequence polarity of the Sanjiang Line,the input/output power supply of the Sanwan Line protection carrier wave channel,etc.Corresponding improvements for programming and connection are proposed. |
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| Keywords: | Three Gorges Left Bank Hydropower Station transmission line protection device |
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