新投运1 000 kV特高压并联电抗器产生乙炔原因及改进  

Cause and Improvement of Acetylene Generation in the 1000 kV UHV Shunt Reactor Newly Put into Operation

作　　者：乔振朋 赵泽方 姬彦洵 李爽 杜宇轩 王卓 QIAO Zhen-peng;ZHAO Ze-fang;JI Yan-xun;LI Shuang;DU Yu-xuan;WANG Zhuo(State Grid Henan DC Center,Zhengzhou 450007,China)

机构地区：[1]国网河南省电力公司直流中心,河南郑州450007

出　　处：《电工电气》2023年第5期29-35,共7页Electrotechnics Electric

基　　金：国家自然科学基金项目(U1804147)。

摘　　要：对新投运的1 000 kV特高压并联电抗器产生乙炔原因展开分析,并通过返厂解体检查确认乙炔产生原因为磁分路接地片与接地线连接不可靠,造成磁分路接地不可靠,发生接触性放电。提出了磁分路夹件侧屏蔽管新的接地方式,由原有的屏蔽管与夹件接触接地更改为屏蔽管与夹件可靠绝缘后用接地线连接,避免因振动引起的接触不可靠,为特高压并联电抗器生产、运维检修提供了参考。The paper first analyzes why the 1000 kV UHV shunt reactor newly put into operation generates acetylene through disassembly inspection in the factory,and the cause of it is that the unreliable connection between the grounding strip and the grounding wire of the mag-netic shunt leads to unreliable magnetic shunt grounding which makes contact discharge happen.Therefore,a new grounding mode of shield-ing pipes on the side of magnetic shunt clamps is proposed.It changes the grounding mode from the contact grounding between shielding pipes and clamps to using grounding wires to connect shielding pipes and clamps that have been insulated.This method can avoid unreliable contact caused by vibration,provide great reference for the production,operation and maintenance of UHV shunt reactors.

关 键 词：特高压 并联电抗器 磁分路 接地 

分 类 号：TM472[电气工程—电器]