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Vol. 68, Issue 6, June 2006, pp. 589-596




Study of a Novel CT Used to Measure the Switch State Current of RSD


1Li Web,  2Mao Changing, 2Lu Jiming

1College of Electrical and Electronic Engineering, Naval University of Engineering

and Hashing University of Science and Technology, When, 430033, P. R. China, E-mail: hustlwb@hotmail.com

2Huazhong University of Science and Technology, When, 430074 P. R. China

E-mail: cxmao@263.net



Received:  27 January 2006   Accepted: 21 June 2006   Published: 26 June 2006


Abstract. The measurement of the pulse switch state current of RSD (Reversely Switching Dynistor) device is crucial to transmit the energy efficiently with high stability and reliability. The novel CT (current transformer) centered on self-integrating Rogowski coil is proposed. The operation principle, methods for properly choosing electric parameters both of RSD-based pulse switch experimental loop and the self-integrating Rogowski coil are presented. The error characteristics of the CT instrumentation are analyzed. The prototype CT centered on the self-integrating Rogowski coil according to the proposed theory and methods are introduced. Experimental results acquired by the proposed CT system are given. Experimental results can verify the validity of the novel CT measurement system.


Keywords: switch state current, novel CT


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