Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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10 kV开关柜梅花触头弹簧变形原因分析

来源:电工电气发布时间:2022-03-24 13:24 浏览次数:406

10 kV开关柜梅花触头弹簧变形原因分析

宋淼,马飞,陆军
(江苏南瑞帕威尔电气有限公司,江苏 南京 211100)
 
    摘 要:10 kV 开关柜梅花触头在长时间运行后发生变形。通过对三组梅花触头弹簧进行宏观检查、材质成分分析、力学性能试验以及弹簧对触指压力校核,查找、确定梅花触头弹簧发生变形的原因。结果表明:造成梅花触头弹簧变形是由于弹簧安装运行后,出现了拉力值低于设计要求的下降,引起触头发热和弹簧变形。通过对弹簧变形原因的分析,提出合理的解决方案,使该问题得到有效预防。
    关键词:10 kV 开关柜;触头弹簧;变形
    中图分类号:TM591     文献标识码:B     文章编号:1007-3175(2022)03-0056-03
 
Reason Analysis on Quincunx Contact Spring
Deformation of 10 kV Switchgear
 
SONG Miao, MA Fei, LU Jun
(Jiangsu Nari Power Electric Co., Ltd, Nanjing 211100, China)
 
    Abstract: The quincunx contact spring of 10 kV switchgear is deformed after a long-time operation.This paper examined the quincunx contact spring, analyzed the material of this kind of spring, tested the mechanics and strength of the spring, and checked the pressure of the contactor. All these movements helped to determine the spring deformation reason.The result shows that the deformation of the contact spring is caused by the decrease of the tension value lower than the design requirements after the spring is installed and operated, resulting in contact heating and spring deformation.This study provides a reasonable solution and prevents the problem before it happens.
    Key words: 10 kV switchgear; contact spring; deformation
 
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