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Vol. 165, Issue 2, February 2014, pp. 35-39

 

Bullet

 

Research of Measurement Circuits for High Voltage Current Transformer Based on Rogowski Coils
 

Yan Bing, Wang Yutian, Li Hui, Wang Huixin, Chen Yiqiang

College of Foreign Language, Yanshan University, Qinhuangdao, Hebei 066004, China
Tel.: (86)-335-8074659

E-mail: yanbing@ysu.edu.cn

 

Received: 11 December 2013 /Accepted: 28 January 2014 /Published: 28 February 2014

Digital Sensors and Sensor Sysstems

 

Abstract: The electronic current transformer plays an irreplaceable position in the field of relay protection and current measurement of the power system. Rogowski coils are used as sensor parts, and in order to improve the measurement accuracy and reliability, the circuits at the high voltage system are introduced and improved in this paper, including the analog integral element, the filtering circuit and the phase shift circuit. Simulations results proved the reliability and accuracy of the improved circuits.

 

Keywords: High voltage current transformer, Rogowski coils, Analog integrator, Low-pass filter, Phase shift circuit, Simulation.

 

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