内桥式变电站110kV分段断路器增设继电保护定值研究
Research on Addition of Relay Protection Settings for 110 kV Segmented Circuit Breakers of Inner-bridge-connected Substation
郭立 1梁艳 1张丹 1刘智琦1
作者信息
- 1. 国网新疆电力有限公司乌鲁木齐供电公司,新疆 乌鲁木齐 830000
- 折叠
摘要
为提升110 kV内桥式变电站110 kV母线并列及合环操作的安全性,同时针对内桥式接线未配置进线断路器保护装置的情况,调查分析了分段断路器保护投退现状及存在问题,提出了改进措施,制定了相应继电保护定值配置方案,并进行了定值配置适应性分析,可为合环或短时并列操作时分段保护整定原则提供参考.
Abstract
To improve the safety during the parallel and closed-loop operations of 110 kV buses in a 110 kV bridge substation with the consideration of the case that such an inner-bridge connection is not configured with an intake line breaker protection device,the present draw-in and draw-out of the segmented circuit breaker protection devices and the existing problems are investigated and studied,based on which the relevant measures for improvement are put forward,the corresponding relay protection setting value configuration scheme is formulated,and the adaptability of the setting value configuration is analyzed,available for reference in determining the setting principle of segmented protection devices in the closed-loop or short-time parallel operations.
关键词
110kV分段断路器/零序保护/过流保护/合环定值Key words
110 kV segment circuit breaker/zero-sequence protection/overcurrent protection/closed-loop setting引用本文复制引用
出版年
2024
NETL
NSTL
万方数据