影响变压器和应涌流的各种因素

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (714 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract There would be sympathetic inrush current appearing in a transformer when its adjacent transformer is switched without load. This would generally leads to mal-tripping of the protective relay equipment in addition to harmonic over-voltage problem. Based on simplified equivalent circuit of two shunt-wound transformers, this paper analyzes the transformer magnetic analytical expression and rule of bias magnetic attenuation. Then summarizes the reasons of sympathetic inrush current generation. The influence of initial close angle, system impedance, load of transformer, shunt-wound capacitors, residual flux, connection in series and grounding mode on sympathetic inrush current are illustrated deeply. The analytical results are tested and verified by computer simulation as well as dynamic simulation test. It provides useful conclusion and reference for estimating sympathetic inrush current.

Key words： Sympathetic inrush current initial close angle system impedance load shunt-wound capacitor residual flux connection in series manner of grounding

Received: 29 September 2007 Published: 17 February 2014

PACS:

TM772

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Wang Yangguang
	Yin Xianggen
	You Dahai
	Xu Tianqi
	Wang Bo

Cite this article:

Wang Yangguang,Yin Xianggen,You Dahai等. The Influencing Factors on Sympathetic Inrush Phenomena in Transformers[J]. Transactions of China Electrotechnical Society, 2009, 24(9): 78-85.

URL:

http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I9/78

[1] 郑涛, 刘万顺, 庄恒建, 等. 用归一化等效瞬时电感分布特性识别励磁涌流的新算法[J]. 中国电机工程学报, 2005, 25(23)：47-53.
[2] 张雪松, 何奔腾. 基于误差估计的变压器励磁涌流识别原理[J]. 中国电机工程学报, 2005, 25(3):94-99.
[3] 王维俭. 电气主设备继电保护原理与应用[M]. 2版.北京: 中国电力出版社, 2002.
[4] 李贵存, 刘万顺, 滕林, 等. 基于波形相关性分析的变压器励磁涌流识别新算法[J]. 电力系统自动化, 2001, 25(17)：25-28.
[5] 李贵存, 刘万顺, 刘建飞, 等. 用波形拟合法识别变压器励磁涌流和短路电流的新原理[J]. 电力系统自动化, 2001, 25(14)：15-18.
[6] Hayward C D. Prolonged inrush currents with parallel transformer affect differential relaying[J]. AIEE Trans, 1941, 60:1096-1101.
[7] Bronzeado H S, Brogan P B, Yacamini R. Harmonic analysis of transient currents during sympathetic interaction[J]. IEEE Trans. on Power Systems, 1996, 11(4):2051-2056.
[8] Bronzeado H S, Yacamini R. Phenomenon of sympathetic interaction between transformers caused by inrush transients[J]. IEE Proceedings—Science, Measurement and Technology, 1995, 142(4):323-329.
[9] 张雪松, 何奔腾, 张健松. 变压器和应涌流的产生机理及其影响因素研究[J]. 电力系统自动化, 2005, 29(6):15-19.
[10] 毕大强, 王祥珩, 李德佳, 等. 变压器和应涌流的理论探讨[J]. 电力系统自动化, 2005, 29(6):1-8.
[11] 袁宇波, 李德佳, 陆于平, 等. 变压器和应涌流机理及其对差动保护的影响[J]. 电力系统自动化, 2005, 29(6):9-14.
[12] 余高旺, 毕大强, 王志广, 等. 变压器和应涌流及实例分析[J]. 电力系统自动化, 2005, 29(6):20-23.
[13] 张雪松, 何奔腾. 变压器和应涌流对继电保护影响的分析[J]. 中国电机工程学报, 2006, 26(14):12-17.
[14] Saied M M. A study on the inrush current phenomena in transformer substations[C]. Proceedings of IEEE Industry Applications Conference & Thirty-sixth IAS Annual Meeting, 2001, 2:1180- 1187.