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	Protection methods for electronic current transformer during extreme circumstance
	Wang Peng ; Zhang Gui-xin ; Li Lian-zi ; Zhu Xiao-mei ; Luo Cheng-mu
	2010-05-06 ; 2010-05-06
关键词	Practical Experimental/ coils current transformers transformer protection transformer testing/ protection methods electronic current transformer ECT overvoltage over current low power current transformer LPCT Rogowski coil power supply system signal processing circuits leakage current type testing lEC 0.2 class/ B2140 Inductors and transformers B8140C Protection apparatus
中文摘要	The performance of electronic current transformer could been deteriorated, even destroyed during some extreme circumstance, for example, overvoltage or over current. This paper introduces the protective problems of several parts for ECT, LPCT (low power current transformer), Rogowski coil, power supply system and signal processing circuits in high-voltage side, the corresponding protective methods and design criterions have been proposed. Errors on LPCT induced by leakage current are analyzed. The analysis results show that errors induced by protection components could be ignored through selecting appropriate parameters. Type test results show the ECT based on the proposed methods meets lEC 0.2 class requirements, and the validity of the measures have been proved.
语种	中文 ; 中文
出版者	Editorial Dept. of High Voltage Apparatus ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/10699]
专题	清华大学
推荐引用方式 GB/T 7714	Wang Peng,Zhang Gui-xin,Li Lian-zi,et al. Protection methods for electronic current transformer during extreme circumstance[J],2010, 2010.
APA	Wang Peng,Zhang Gui-xin,Li Lian-zi,Zhu Xiao-mei,&Luo Cheng-mu.(2010).Protection methods for electronic current transformer during extreme circumstance..
MLA	Wang Peng,et al."Protection methods for electronic current transformer during extreme circumstance".(2010).

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