Overvoltages and currents while switching on and off high voltage motors in 6 kV network of Sartid

This paper presents the results of experimental research on overvoltages and currents, while switching on and off high voltage motors in 6 kV networks of “Sartid”. They were part of larger project of research on transient voltage and currents phenomena in 6 kV networks, financed by “Sartid” and Ministry of science, technology and development. The results of research have pointed out to the measures that have to be taken to increase reliability of high voltage motors in 6 kV industrial plants networks.