Impact of line length on the operation of overvoltage protection in LV networks

J. Ribič
2015 Electric power systems research  
This paper deals with analysing the impact of LV lines impedance on the operation of overvoltage protection, especially on the operation of gas discharge arresters. A model of the overvoltage protection with all elements (gas discharge arrester and metal-oxide surge arrester) was developed within a Simulink/Matlab environment for this purpose. This model of LV line is presented as a model for the computation of transients. Computations were carried out for various line lengths and various
more » ... s and various combinations of overvoltage protection elements. On the basis of analyzing the models responses, an analysis was made on the impact of the impedance of LV lines on the ability of self-extinguishing the gas discharge arrester. Some additional measures are also proposed for achieving the proper operation of overvoltage protection.
doi:10.1016/j.epsr.2014.11.012 fatcat:3vuk7izh3rbe7jxci264ehp4zm