Condition monitoring of power transformer on-load tap-changers. I. Automatic condition diagnostics

Author

Kang, P. ; Birtwhistle, D.

Author_Institution

United Technol. Res. Center, East Hartford, CT, USA

Volume

148

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

301

Lastpage

306

Abstract

Automatic diagnostics for an on-load tap-changer (OLTC) requires a reliable technique that can classify vibration signals measured using an accelerometer mounted on the tank. In the paper, the authors investigate the automatic classification of OLTC vibration signatures using a self-organising map (SOM) and develop a feature extraction procedure that can extract essential features from the original vibration signature. The proposed SOM signature classifier is evaluated with a database established for one type of distribution class OLTC. The application results reveal the practical advantages of SOM for a number of tasks in OLTC condition diagnostics

Keywords

computerised monitoring; condition monitoring; fault diagnosis; power distribution faults; power engineering computing; power transformer testing; self-organising feature maps; signal classification; vibration measurement; OLTC vibration signatures; accelerometer; automatic condition diagnostics; condition monitoring; power distribution transformer; power transformer on-load tap-changers; self-organising feature map; vibration signals classification;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings-

Publisher

iet

ISSN

1350-2360

Type

jour

DOI

10.1049/ip-gtd:20010389

Filename

941371