Shunt Reactor Switching Characteristics and Maintenance Planning in 161 kV System

Department of Electric Engineering, National Taiwan University of Science and Technology, Taiwan, China; High Voltage Re-search Lab of Taipower Research Institute, Taiwan Power Company, Taiwan, China
J. Electromagnetic Analysis & Applications 01/2009; 1:214-219. DOI: 10.4236/jemaa.2009.14032

ABSTRACT The high frequency transient recovery voltage caused by usually switching operation of the circuit breakers, used on shunt reactor switching, have become a noticeable problem recently. For extension the service life time and normal operation of the circuit breakers, a well modified maintenance strategy is proposed. The field testing and experimental measurement showed the maintenance strategy proposed had been proved effectively and adopted in Taiwan Power Company.

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    ABSTRACT: The work reported in this paper can be grouped into three categories: empirical investigations; analytical studies; and computer simulations. The studies have identified the causes of high transient overvoltages which are produced when switching high voltage shunt reactors. Laboratory and site testing have shown that multiple reignition is the most likely cause of the high overvoltages. Circuit analysis has been carried out to identify the conditions which lead to multiple reignitions. A computer model has been developed to allow the likelihood of multiple reignitions occurring to be assessed
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