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

作　　者：黄鸿杰 陈晓彬 邢文忠 谢惠藩[2] 孙玉彤 孙旭 方文田 HUANG Hongjie;CHEN Xiaobin;XING Wenzhong;XIE Huifan;SUN Yutong;SUN Xu;FANG Wentian(Jieyang Power Supply Bureau,Guangdong Power Grid Corporation,Jieyang,Guangdong 522000,China;China Southern Power Grid Co.,Ltd.,Guangzhou,Guangdong 510000,China;Zhuhai Electric Power Design Institute Co.,Ltd.,Zhuhai,Guangdong 519000,China)

机构地区：[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

出　　处：《自动化应用》2024年第9期221-224,共4页Automation Application

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。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 

分 类 号：TM732[电气工程—电力系统及自动化]