Title :
Identification of stator insulation deterioration using on-line partial discharge testing
Author :
Zhu, H. ; Green, V. ; Sasic, M.
Author_Institution :
ADWEL Int., Canada
Abstract :
This article analyzes why one cannot rely on an absolute partial discharge (PD) magnitude to assess the insulation condition of rotating machines. How to identify stator insulation deterioration effectively and reliably is discussed and demonstrated by case studies. The paper concludes that trending of PD activity is the reliable way to identify severe insulation deterioration in rotating machines.
Keywords :
electric machines; insulation testing; machine insulation; machine testing; measurement; partial discharge measurement; stators; PD activity trending; absolute PD magnitude; case studies; insulation condition assessment; rotating machines; severe insulation deterioration identification; stator insulation deterioration; Calibration; Capacitors; Charge measurement; Current measurement; Insulation testing; Partial discharges; Pulse measurements; Rotating machines; Rotation measurement; Stator windings;
Journal_Title :
Electrical Insulation Magazine, IEEE
