摘要
天一电厂属大(I)型工程,1998年首台机组投运,2000年竣工。电站采用微机保护双重化配置,现设备已达投改年限。针对发变组电气量保护改造展天研究,采用“1套发变组保护+1套发电机保护+1套变压器保护”方案,更换设备、优化回路,满足电网继电保护标准化要求。改造后解决了非电气量保护未独立组屏、双重化配置不完善等问题,提升系统可靠性。
Tianyi power plant is a large(I)project.The first unit was put into operation in 1998 and completed in 2000.The power station adopts the dual configuration of microcomputer protection,and the equipment has reached the service life.This paper studies the transformation of generator transformer unit electrical quantity protection,adopts the scheme of"one set of generator transformer unit protection+one set of generator protection+one set of transformer protection",changes the equipment,optimizes the circuit,and meets the requirements of grid relay protection standardization.After the transformation,the problems of non electric quantity protection without independent screen assembly and imperfect dual configuration were solved,and the reliability of the system was improved.
作者
肖飞
刘汝仪
陈鉴然
卢亚萌
黄家旭
XIAO Fei;LIU Ruyi;CHEN Jianran;LU Yameng;HUANG Jiaxu(Tianshengqiao First level Hydropower Development Co.,Ltd.Hydroelectric Power Plant,Xingyi 562400,China;Power China Kunming Engineering Corporation Limited,Kunming 650051,China)
出处
《云南水力发电》
2025年第8期107-111,共5页
Yunnan Water Power
关键词
天一电厂
继电保护
发变组保护
配置改造
Tianyi power plant
relay protection
generator transformer protection
configuration modification
