Evaluation of the State of the Insulation System of a Stator Winding of High-Voltage Electric Machines Based on Measurements of Statistical Characteristics of Partial Discharges

摘要

The statistical characteristics of amplitude and amplitude-phase spectra of PDs in the insulation of model specimens with artificial flaws in a semiconducting coating are investigated. The algorithm for distinguishing the flaws in the stator winding insulation of high-voltage electrical machines based on statistical parameters of the PD spectra is developed and practically implemented.