NDLI: Synchronized energization of shunt capacitor banks based on statistical characteristics of vacuum circuit breakers

Content Provider	IEEE Xplore Digital Library
Author	Duan Xiong-ying Fang Chun-en Zou Ji-yan Ding Fu-hua
Copyright Year	2004
Description	Author affiliation: Dept of Electric and Electronic Engr., Dalian University of Technology, Dalian, China (Duan Xiong-ying; Fang Chun-en; Zou Ji-yan; Ding Fu-hua)
Abstract	Operation of switching capacitor banks always produce over voltages and inrush currents, which may be harmful not only to the capacitor hanks themselves but also to other adjacent components of the system. Synchronized closing has been proved an efficient solution to reduce switching surge. In the present study, a l2kV vacuum circuit breaker (VCB) with permanent magnet actuator for each pole is used as the shunt capacitor switch. The influences on synchronized energization of circuit breaker's statistical characteristics, like contact operation time scatter, and the rate of decrease of dielectric strength (RDDS) of the electrode gap are discussed. The optimum closing instant is calculated according to these characteristics of VCB. Based on above analysis, a controlled closing system for shunt capacitor banks has been developed. A series of experiments demonstrate the excellent performance of this system.
Starting Page	345
Ending Page	349
File Size	247733
Page Count	5
File Format	PDF
ISBN	078038461X
ISSN	10932941
DOI	10.1109/DEIV.2004.1422617
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-27
Publisher Place	Crimea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Elementary particle vacuum Circuit breakers Voltage Switched capacitor circuits Electrodes Switching circuits Switches Scattering Dielectric breakdown Surges
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Software

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