中国电力2018，Vol.51Issue(5)：31-38,8.DOI:10.11930/j.issn.1004-9649.201711141
热场仿真和高频脉冲震荡法分析电抗器事故
Analysis of a Dry-Type Reactor Fault Combined with COMSOL Thermal Field Simulation and High Frequency Pulse Oscillations
罗新 1黄学民 1郑文坚 2谷裕 1刘春涛 1谭华安1
作者信息
- 1. 南方电网超高压输电公司广州局,广东广州 510663
- 2. 华南理工大学电力学院,广东广州 510641
- 折叠
摘要
Abstract
Focused on a single-phase earth fault of 35 kV dry-type reactor,comprehensive analysis is performed including impulse oscillating turn-to-turn insulation test,disassembly in manufacturer and COSMOL thermal field simulation.The cause of the accident is turn-to-turn insulation failure in the 5th package.Due to internal conductor burning,the preventive test of DC resistance measurement has limitation on insulation failure detection.Thermal field simulation of reactor is also performed,and results show that the hot spot of reactor during operation is in the 6th floor coating,which has 73.8 K temperature rise.Temperature rise on 5th,7th,14th,15th package is also high compared to other packages which deteriorates device insulation.The analysis and simulation results provide valuable reference for device design,production,operation and testing.关键词
干式电抗器/匝间绝缘/高频脉冲震荡法/热场仿真Key words
dry type reactor/turn-to-turn insulation/high frequency pulse oscillations/thermal field simulation分类
信息技术与安全科学引用本文复制引用
罗新,黄学民,郑文坚,谷裕,刘春涛,谭华安..热场仿真和高频脉冲震荡法分析电抗器事故[J].中国电力,2018,51(5):31-38,8.
