Shunt Reactor Switching Characteristics and Maintenance Planning in 161 kV System

High Voltage Re-search Lab of Taipower Research Institute, Taiwan Power Company, Taiwan, China
Journal of Electromagnetic Analysis and Applications 01/2009; 1(04):214-219. DOI: 10.4236/jemaa.2009.14032


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: This paper presents a methodology for obtaining the current-limiting air-core series reactor model suitable for the transient recovery voltage (TRV) studies, which is constructed from the reactor geometry, accounting for the winding design and disposition, as well as the insulating material properties. The model is based on the ladder connection of frequency-dependent lumped-parameter reactor winding elements (representing partial capacitances, resistances, inductances and conductances). A frequency-dependent equivalent admittance matrix is formed for the ladder network, which is further processed using the vector fit technique, resulting in a Foster-type network suitable for a direct incorporation within the EMTP–ATP environment. A parametric analysis is provided in the paper as well, featuring different impacts that the variation of reactor design properties produces on the inherent TRV response.
    No preview · Article · Dec 2014 · Electric Power Systems Research