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LEP-901A微机方向高频保护误动分析
引用本文:庄宏博,刘更,白铮,尹睿侠.LEP-901A微机方向高频保护误动分析[J].黑龙江电力,2001,23(6):403-404.
作者姓名:庄宏博  刘更  白铮  尹睿侠
作者单位:1. 鸡西热电厂,黑龙江,鸡西,158100
2. 黑龙江省电力调度局,黑龙江,哈尔滨,150001
3. 哈尔滨电业局,黑龙江,哈尔滨,150010
摘    要:通过具体实例,详细分析了LFP-901型微机保护工频突变量方向高频保护动作及保护装置在手合过程中工频突变量高频方向继电器工作原理,指出使用901型微机保护的线路,在线路送电过程中一定要保证收发讯机及高频通道正常工作,才能避免误动事故的发生.

关 键 词:微机保护  高频保护  方向继电器  收发讯机
文章编号:1002-1663(2001)06-0403-02
修稿时间:2000年3月9日

Avoidance of Mishandling of Directional High-frequency Protection of LFP-901A Microcomputer
ZHUANG Hong-buo ,LU Geng ,BAI Zheng ,YI Rui-xia.Avoidance of Mishandling of Directional High-frequency Protection of LFP-901A Microcomputer[J].Heilongjiang Electric Power,2001,23(6):403-404.
Authors:ZHUANG Hong-buo  LU Geng  BAI Zheng  YI Rui-xia
Affiliation:ZHUANG Hong-buo 1,LU Geng 2,BAI Zheng 2,YI Rui-xia 3
Abstract:Analyses the directional high -frequency protection of LFP -901A microcomputer against sudden changes in industrial frequency and the theory behind the operation of directional relay for sudden changes in industrial frequency while the protector is manually engaged,and points out the occurrence of mishandling can be avoided only by ensuring normal operation of both transceiver and high-frequency channel while electric power is being transmitted in the power lines protected with901microcomputer.
Keywords:Protection by microcomputer  high-frequency protection  divectional relay  transceiver
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