The analysis of the influence of environmental conditions on the emission of partial discharges in electrical machines

The article presents the results of research which include an assessment of influence of selected microclimate parameters on the issue of partial discharges in high power drives in the energy sector. The author presented the results of their own research, which was made in industrial conditions in a long period of time. The study included measurement of environmental parameters such as the air temperature, radiant temperature, air flow velocity, humidity and the relative moisture of air. It also measured the parameters of partial discharges like: partial discharge intensity (PDI), the amplitude of discharges (Qmax) and the partial discharge pulses per second (PPS). In summary, the author presents the recommended parameters of the environment, which are beneficial to long-term operation of electrical machines