Pomiary on-line stanu izolacji uzwojeń silników indukcyjnych wysokonapięciowych

The article presents an industrial application of high voltage induction motor on-line measurement. The paper contains an analysis of different diagnostics methods. The results indicate that these on-line methods are both useful. Partial Discharge (PD) on-line measurement is a recognized testing method for identification of deterioration of stator winding insulation of high voltage rotating machines such as hydraulic generators, high-speed turbine generators and large motors.