Experience with PDA diagnostic testing on hydraulic generators

Author

Lyles, J.F. ; Stone, G.C. ; Kurtz, M.

Author_Institution

Ontario Hydro, Ont., Canada

Volume

3

Issue

4

fYear

1988

fDate

12/1/1988 12:00:00 AM

Firstpage

824

Lastpage

832

Abstract

This paper describes the capability of the partial discharge analyzer (PDA) test to distinguish between the various operative mechanisms of stator winding insulation deterioration (if any). The ability to distinguish between the various mechanisms yields significant benefits in scheduling priorities for inspection, repairs, and possible locations of deterioration. Two normalized quantity number charts are presented: one for polyester and epoxy stator insulation systems, and one for asphalt-mica and mica folium stator insulation systems. Their stated insulation damage relationships are based on Ontario Hydro´s operating experience over the past 15 years

Keywords

insulation testing; machine insulation; machine testing; stators; PDA diagnostic testing; asphalt-mica insulation; epoxy insulation; hydraulic generators; inspection; mica folium insulation; normalized quantity number charts; partial discharge analyzer; polyester insulation; repairs; stator winding insulation deterioration; Bonding; Building materials; Coils; Condition monitoring; Copper; Delamination; Inspection; Insulation testing; Partial discharges; Stator windings;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.9358

Filename

9358