一种简单的线路相间距离保护故障量计算方法

A simple calculation method of fault quantity for line phase to phase distance protection

110kV及以上线路保护装置定检需要校验相间距离保护功能,必须要输入相应的故障量以完成校验。传统的线路相间距离保护故障量的计算方法复杂繁琐,不仅降低了现场工作的效率,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,提出了一种简单的故障量计算方法,有利于现场进行保护装置的调试和定检。

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.