一种简朴的线路相间距离保护故障量计算办法 作者:杨伟涛, 卢迪勇来源:《电气传动自动化》第 06 期 摘要: 110kV 及以上线路保护装置定检需要校验相间距离保护功效,必须要输入对应的故障量以完毕校验。传统的线路相间距离保护故障量的计算办法复杂繁琐,不仅减少了现场工作的效率,也增大了工作出错的风险。本文基于线路相间距离保护的基本原理,提出了一种简朴的故障量计算办法,有助于现场进行保护装置的调试和定检。 核心词: 线路相间距离保护; 线路保护装置定检; 简朴的故障量计算办法 中图分类号: TM774 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; 文献标记码: A A simple calculation method of fault quantity for line phase to phase distance protection YANG Wei-tao , LU Di-yong (Dongguan Power Supply Bureau of Guangdong Power Grid Co. , Ltd.,Dongguan 511700, China) Abstract : The regular inspection of 110 kV and above line protection device needs to verify the phase to phase distance protection function , and the corresponding fault quantity must be input to complete the calibration. The traditional calculation method of fault quantity for line phase to phase distance protection is complex and tedious , which not only reduces the efficiency of field work ,but also increases the risk of work error. Based on the basic principle of line phase to phase distance protection , a simple calculation method of fault quantity is presented , which is conducive to the debugging and regular inspection of the protection device on site. Key words : line phase to phase distance protection; line protection device regular inspection; simple calculation method of fault quantity 1 ;引言 1 距離保护是运用故障发生时电压和电流的变化特性,计算故障电压和故障电流的比值,该比值可反映保护安装处到故障点的距离,并以此为判据判断保护与否动作[1]。距离保护的保护范畴和敏捷度不受系统运行方式的影响,被广泛应用至 110kV 及以上电压等级的线路保...