微机人工二次谐波发电机定子单相接地保护  

Microcomputer Based Single Phase Earthed Protection of Generator stator Winding of Secondary Harmonic Mould

作　　者：颜卓胜[1] 李振然[1] 

机构地区：[1]广西大学电气工程系

出　　处：《继电器》1997年第4期26-29,59,共5页Relay

摘　　要：本文提出在发电机中性点消弧线圈（或配电变压器）的二次线圈中加入人工二次谐波电流，通过检测二次谐波电压与二次谐波电流间相位差。A single phase earthed protection of generator stator winding is presented in this paper.It is realized by detecting the phase difference between secondary harmonic voltage and secondary harmonic current.Artificial secondary harmonic current is put into secondary coil of electrical arc elimination coil of generator neutral protection.This protection can constitute 100% protective range with the fundamental wave zero sequence voltage protection.

关 键 词：发电机 定子 单相接地保护 二次谐波 微机 

分 类 号：TM310.33[电气工程—电机] TM769