Simulation of distribution of space charge in ±500kV converter transformer in DC tests

doi:10.1109/CEIDP.2013.6748116

	Simulation of distribution of space charge in ±500kV converter transformer in DC tests
	Zhang, Hongliang 1,2; Gong, Weili 2; Cao, Liqiang 3; Huang, Ping 4
	2013
会议日期	October 20, 2013 - October 23, 2013
会议地点	Shenzhen, China
关键词	DC transformers Earth (planet) Electric space charge Finite element method Insulation Oil filled transformers Partial discharges Converter transformers Oil paper insulation Oil-papers Polarity reversal Release rate
DOI	10.1109/CEIDP.2013.6748116
页码	242-245
英文摘要	In DC withstand test and polarity reversal test, there would be space charge at interfaces of oil-paper insulation in converter transformer, which may excite partial discharge in subsequent tests. So it is important to study distribution of space charge in converter transformer. This paper simulated the distribution of space charge in a ±500kV converter transformer during DC withstand test, polarity reversal test and earth with finite element method. It was studied that the influences of changing resistivities of oil and paper on space charge distribution in ±500kV converter transformer. Based on the calculation of space charge, the study indicates that the ratio of resistivities of oil and paper has a great influence on distribution and release rate of space charge in ±500kV converter transformer. © 2013 IEEE.
会议录	Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
会议录出版者	Institute of Electrical and Electronics Engineers Inc.
语种	英语
ISSN号	00849162
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/117878]
专题	电气工程与信息工程学院
作者单位	1.State Key Laboratory of Electrical Insulation and Power Equipment, Xi'An Jiaotong University, China; 2.College of Electric Engineering and Information Engineering, Lanzhou University of Technology, China; 3.Shanxi Electric Power Research Institute, China; 4.China Nuclear Power Engineering Co. Ltd, Lanzhou, China
推荐引用方式 GB/T 7714	Zhang, Hongliang,Gong, Weili,Cao, Liqiang,et al. Simulation of distribution of space charge in ±500kV converter transformer in DC tests[C]. 见:. Shenzhen, China. October 20, 2013 - October 23, 2013.