| 带小电源三线两变扩大内桥接线备自投方案及改进 |
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| 引用本文： | 吕庭钦,;林峰,;张兰英.带小电源三线两变扩大内桥接线备自投方案及改进[J].湖北水力发电,2014(7):47-50. |
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| 作者姓名： | 吕庭钦 ;林峰 ;张兰英 |
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| 作者单位： | [1]福州大学电气工程与自动化学院,福建福州350108; [2]国网福州供电公司,福建福州350009 |
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| 摘 要： | 备自投装置正确动作是提高供电可靠性的重要措施,通过工程实例,分析了带小电源的三线两变扩大内桥接线备自保护动作机理及存在问题,提出改进措施,实现了带小电源的三线两变扩大内桥接线备自投装置的正确动作,提高了变电站的供电可靠性。
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| 关 键 词： | 小电源 扩大内桥 备自投 改进措施 |
Improvement Measures for Backup Power Automatic Switching Scheme in Three-wire Two-Transformer Expanded Bridge Connection with Small Power Source |
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| Affiliation: | LV Tingqin, LIN Feng, ZHANG Lanying( 1. College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China; 2. State Grid Fuzhou Electric Power Supply Company, Fuzhou 350009, China) |
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| Abstract: | Correct action of the backup power automatic switching device is important for the reliability of power supply . In this paper , the action mechanism and existing problems are analyzed for the backup power automatic switching scheme in three-wire two-transformer expanded bridge connection with small power source .Improvement measures are proposed to ensure correct actions of the backup power automatic switching device , which could improve the power supply reliability of the transformer substation . |
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| Keywords: | small power source expanded bridge connection backup power automatic switching improvement meas-ures |
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