Funkcja korelacji w pomiarach on-line wyładowań niezupełnych silników elektrycznych w przemyśle

In modern branches of the industry in technically developed countries, electrical machines are increasingly covered by on-line diagnostics involving the condition of winding insulation based on the measurement of partial discharges. The nature of partial discharges accompanying operation of electrical machines is very complex. PD on-line measurements require specialist PD sensors and instruments that analyse PD signals. The analysis of signals for diagnostic purposes should be carried out taking into account the phase-resolved distributions and mutual correlations between PD and load, temperature, humidity and vibrations.