High-Voltage Rotating Machines: A New Technique for Remote Partial Discharge Monitoring of the Stator Insulation Condition

Author

Renforth, Lee A. ; Armstrong, Rob ; Clark, Daniel ; Goodfellow, Steven ; Hamer, Paul S.

Author_Institution

HVPD Ltd., Manchester, UK

Volume

20

Issue

6

fYear

2014

fDate

Nov.-Dec. 2014

Firstpage

79

Lastpage

89

Abstract

In this article, a new technique is presented for the remote online partial discharge (OLPD) monitoring of the stator insulation condition of in-service, high-voltage (HV) rotating machines with a focus on the Ex/ATEX HV motors used in the petrochemical industry. The technique applies wideband, ferrite-based high-frequency current transformer (HFCT) sensors and high-resolution measurement technology. This remote PD monitoring technique has significant advantages when monitoring motors located in Ex/ATEX hazardous gas zones in oil and gas and petrochemical facilities.

Keywords

condition monitoring; current transformers; electric machines; electric sensing devices; gas industry; machine insulation; oil technology; partial discharge measurement; petrochemicals; stators; Ex-ATEX HV motors; Ex-ATEX hazardous gas zones; HV rotating machines; gas facilities; high-resolution measurement technology; high-voltage rotating machines; in-service high-voltage rotating machines; oil facilities; petrochemical facilities; petrochemical industry; remote OLPD; remote PD monitoring technique; remote online partial discharge monitoring; remote partial discharge monitoring; stator insulation condition; wideband ferrite-based HFCT sensors; wideband ferrite-based high-frequency current transformer sensors; High-voltage techniques; Insulation; Partial discharge measurement; Power cables; Rotating machines; Sensors; Stator windings;

fLanguage

English

Journal_Title

Industry Applications Magazine, IEEE

Publisher

ieee

ISSN

1077-2618

Type

jour

DOI

10.1109/MIAS.2013.2288384

Filename

6891260