Experiments for the Ufe Assessmentof Generator Bars
M. R. Naghashan Power and Water Institute of Technology Tehran, Iran
In order to estimate the remaining life of a hydro power plant generator bars in Iran, one new and four old stator ban of the generator are tested under combined electrlca], thermal and mechanical aging stresses. Partial discharge quantity (total integrated charge of the ban in cooling-down period) before and during the aging is used for the life assessment.
Keywords: Partial discharge, Monitoring, corona, PD-Measurement, Generator, coupling capacitor