| 电容器组反时限过电压保护的实现 |
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| 引用本文： | 施静辉,寇英刚,许庆强,张琦.电容器组反时限过电压保护的实现[J].江苏电机工程,2011,30(6):20-22. |
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| 作者姓名： | 施静辉 寇英刚 许庆强 张琦 |
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| 作者单位： | 1. 南京南瑞继保电气有限公司,江苏南京,211102
2. 江苏省电力公司,江苏南京,210024 |
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| 摘 要： | 在电容器组发生过电压的情况下,传统的定时限过电压保护在固定时限内断开电容器组,这使得电容器组的设备裕度得不到充分的利用.文中借助相关标准中的数据,通过曲线拟合的方法得到过电压保护的反时限特性方程.基于该方程在微机保护装置中实现了电容器组的反时限过电压保护,在实际工程应用中取得了较好的效果.
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| 关 键 词： | 调相机 微机保护 降压异步启动法 |
Implementation of the Inverse Time Overvoltage Protection of Capacitor Bank |
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| SHI Jing-hui,KOU Ying-gang,XU Qing-qiang,ZHANG Qi.Implementation of the Inverse Time Overvoltage Protection of Capacitor Bank[J].Jiangsu Electrical Engineering,2011,30(6):20-22. |
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| Authors: | SHI Jing-hui KOU Ying-gang XU Qing-qiang ZHANG Qi |
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| Affiliation: | SHI Jing-hui1,KOU Ying-gang2,XU Qing-qiang2,ZHANG Qi1(1.Nanjing NARI-Relays Electric Co.Ltd.,Nanjing 211102,China,2.Jiangsu Electric Power Company,Nanjing 210024,China) |
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| Abstract: | When overvoltage situation appears in capacitor bank,the traditional definite time overvoltage protection will cut off the capacitor bank in an appointed time delay,which makes the equipment margin of capacitor bank not be fully utilized.This paper gets the inverse time characteristic equation of overvoltage protection by curve fitting on the basis of the data from relevant standards.The inverse time overvoltage protection of capacitor bank is realized in a microprocessor-based protection device according t... |
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| Keywords: | capacitor bank overvoltage protection inverse time |
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