NEW METHOD OF DETERMINING SIZE AND PROVISION OF DEFECTS IN THE INSULATION OF WINDINGS OF STATOR OF TURBOGENERATORS AT MEASUREMENT OF PARTIAL DISCHARGES IN THEM

Abstract

The paper provides a new method for determining the dimensions and position of defects in the insulation of the stator windings of turbogenerators when partial discharges (PD) are measured in them. The possibilities of the methodology are illustrated by the example of the analysis of the PD in turbogenerators brand TVF-60-2.

Keywords

• diagnostics of turbo generators
• partial discharge method
• defect size
• apparent charge
• phase angle of a pd pulse
• and partial discharge inception voltage