广东电力2016，Vol.29Issue(8)：125-128,4.DOI:10.3969/j.issn.1007-290X.2016.08.024
两起110 kV穿墙套管介损超标的原因分析
Reason Analysis for Two Cases of Dielectric Loss Over-standard of 1 10 kV Wall Bushings
刘梦娜1
作者信息
- 1. 广东电网有限责任公司电力科学研究院，广东 广州510080
- 折叠
摘要
Abstract
High voltage wall bushing is a kind of common electric equipment which is probably to flashover and discharge once there is insulation deterioration in its operation,even in serious case,it is likely to cause insulation breakdown due to the above faults, which may bring great loss to security of the power system. Measurement on dielectric loss of capacitor bushing is one of important method for judging insulation state of the bushing,this paper tries to find out reasons for defects by diagnostic experiments on ab-normalities of routine experimental data of two cases of 1 1 0 kV dry wall bushings including measurement on the major insulation re-sistance,end shield insulation resistance,the major insulation dielectric loss and end shield grounding dielectric loss as well as data comparison analysis. It also conducts disassembling check on the defected bushings and proposes precautionary measures for preven-ting failures in wall bushings so as to improve security of the power system.关键词
穿墙套管/解体分析/介损超标/防范措施/密封不良Key words
wall bushing/disassembling analysis/dielectric loss over-standard/precautionary measure/sealing fault分类
信息技术与安全科学引用本文复制引用
刘梦娜..两起110 kV穿墙套管介损超标的原因分析[J].广东电力,2016,29(8):125-128,4.
