应用于母线全停的无断路器式线变单元接线的供电系统
Power Supply System for Line Transformer Unit Wiring Without Breakers Applied to Bus Outage
黄鸿杰 1陈晓彬 1邢文忠 1谢惠藩 2孙玉彤 3孙旭 1方文田1
作者信息
- 1. 广东电网有限责任公司揭阳供电局,广东揭阳 522000
- 2. 中国南方电网有限责任公司,广东广州 510000
- 3. 广东珠海电力设计院有限公司,广东珠海 519000
- 折叠
摘要
GIS母线故障导致全站停电并且无法快速修复,长时间停电将带来严重问题.为确保"修必修好",保障用户正常供电,提出了一种实现GIS变电站母线停电检修时不影响其他设备运行的方法.该方法利用主变变高套管和线路一次设备跳通,线路变压器组中间无断路器,构建新型接线方式.同时,首次提出针对该方式下的新型二次系统,该方法目前已在多座变电站实施,成效显著.
Abstract
GIS bus faults result in a power outage for the entire station,which cannot be quickly repaired.Prolonged power outages will bring serious economic and social problems to society.How to ensure that repairs are necessary and ensure normal power supply for users is an urgent problem that the power grid operation and maintenance department needs to solve.This paper proposes a method to achieve GIS substation busbar power outage maintenance without affecting the operation of other equipment.This method utilizes the high voltage bushing of the main transformer and the tripping of the primary equipment of the line.At this time,there is no circuit breaker in the middle of the line transformer group,and a new wiring method is constructed.At the same time,a new type of secondary system for this method has been proposed for the first time,and this method has been implemented in multiple substations with significant results.
关键词
无断路器/气体绝缘全封闭组合电器/设备跳通Key words
line transformer unit without breaker/GIS/device jump through引用本文复制引用
出版年
2024
NETL
NSTL
万方数据