Partial discharge measurements on power transformers using transfer function for detection and localisation

Author

Werle, P. ; Gockenbach, E. ; Borsi, H.

Author_Institution

Inst. of Electr. Power Syst., Hannover Univ., Germany

Volume

3

fYear

2003

fDate

1-5 June 2003

Firstpage

1154

Abstract

In this contribution a system for the detection and evaluation of electrical broadband measured partial discharges (PD) on power transformers is introduced and discussed. The theoretical background for some features of the system like the PD localisation based on the use of sectional winding transfer functions (SWTF), are explained exemplarily, whereas the operation of the system is described for two different transformers. The performed measurements could be carried out on-line due to an enhanced sensor technology, superior signal transmission techniques and improved digital signal processing, which enables a significant reduction of disturbing noise.

Keywords

partial discharge measurement; power transformers; PD localisation; digital signal processing; electrical broadband measured partial discharges; enhanced sensor technology; power transformers; sectional winding transfer functions; signal transmission techniques; Digital signal processing; Electric variables measurement; Noise measurement; Partial discharge measurement; Partial discharges; Performance evaluation; Power measurement; Power transformers; Signal processing; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on

ISSN

1081-7735

Print_ISBN

0-7803-7725-7

Type

conf

DOI

10.1109/ICPADM.2003.1218628

Filename

1218628