PD patterns of stator windings by in-factory experiment on a 10kV motor

Author

Chuanyang Li ; JianCheng Song ; Ailiang Kang ; Lingyan Lin ; Wen Su ; Zhipeng Lei

Author_Institution

Shanxi Key Lab. of Coal Min. Equip. & Safety Control, Taiyuan Univ. of Technol., Taiyuan, China

fYear

2014

fDate

1-5 June 2014

Firstpage

168

Lastpage

171

Abstract

Three types of partial discharge (PD), including slot discharge, corona discharge at the slot exit, and bar-to-bar discharge existing on the surface of the ground wall insulation involving 10kV HV motors were presented in this paper. PD patterns were induced through off-line experiment by using single factor aging stator coils embedded into a real stator core slot. The phase resolved partial discharge (PRPD) representation was adopted to gain the fingerprint characteristics of PDs. The research can provide the basis for the on-line monitoring and fault diagnosis of 10kV HV motors.

Keywords

AC motors; coils; condition monitoring; fault diagnosis; machine insulation; partial discharges; stators; HV motor; PD pattern; PRPD; bar-to-bar discharge; corona discharge; fault diagnosis; fingerprint characteristic; ground wall insulation; high voltage motor; in-factory experiment; off-line experiment; on-line monitoring; partial discharge; phase resolved partial discharge; real stator core slot; single factor aging stator coil; slot discharge; stator winding; voltage 10 kV; Corona; Discharges (electric); Fingerprint recognition; Injuries; Monitoring; Partial discharges; Production facilities; PD patterns; PRPD; on-line monitoring; partial discharge (PD);

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials (ISEIM), Proceedings of 2014 International Symposium on

Conference_Location

Niigata

Type

conf

DOI

10.1109/ISEIM.2014.6870745

Filename

6870745