Experience with partial discharge, dissipation factor and recovery voltage measurements for the evaluation of insulation systems of high voltage rotating machines

Author

Farahani, M. ; Borsi, H. ; Gockenbach, E.

Author_Institution

Div. of High Voltage Eng. (Schering-Inst.), Hannover Univ., Germany

fYear

2002

fDate

2002

Firstpage

454

Lastpage

457

Abstract

Possibilities and limitations of partial discharge (PD), recovery voltage (RV) and dissipation factor measurement for evaluation of the actual status of insulation systems of high voltage rotating machines are presented. An accelerated cycling thermal ageing procedure was applied on a model insulation system similar to a real machine insulation system and during the ageing procedure the development of the recovery voltage phenomena, partial discharge activities and dielectric dissipation was investigated.

Keywords

ageing; dielectric loss measurement; electric machines; epoxy insulation; insulation testing; machine insulation; partial discharge measurement; stators; voltage measurement; accelerated cycling procedure; dielectric dissipation factor measurement; epoxy VPI technology; high voltage rotating machines; insulation system; model stator bars; partial discharge measurement; recovery voltage measurement; sensitivity; stator winding insulation; test voltage levels; thermal ageing process; Aging; Circuits; Dielectric measurements; Dielectrics and electrical insulation; Partial discharge measurement; Partial discharges; Polarization; Rotating machines; Rotation measurement; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2002 Annual Report Conference on

Print_ISBN

0-7803-7502-5

Type

conf

DOI

10.1109/CEIDP.2002.1048832

Filename

1048832