Polarisation spectrum analysis for diagnosis of oil/paper insulation systems

Author

Osvath, Peter ; Zahn, Hans

Author_Institution

TETTEX Instrum. AG, Zurich, Switzerland

fYear

1994

fDate

5-8 Jun 1994

Firstpage

155

Lastpage

161

Abstract

This new method can be described as the diagnosis of the state of an oil/paper insulated high voltage system by polarisation spectrum obtained from the results of recovery voltage measurement. The technique of recovery voltage measurement offers a useful non-intrusive diagnostic procedure for assessing oil-paper condition of transformers. The technique is primarily a comparative tool intended for repeat measurements over a period to indicate trends in insulation degradation. With experience, and taking due account of related factors such as temperature, recovery voltage measurement can also be used to give a quick indication of the health of the insulation system in any oil/paper insulated electrical equipment

Keywords

insulating oils; insulation testing; paper; polarisation; power transformer insulation; power transformer testing; spectral analysis; voltage measurement; insulated high voltage system; insulation degradation; non-intrusive diagnostic procedure; oil/paper insulation systems; polarisation spectrum analysis; recovery voltage measurement; transformers; Aging; Capacitance; Capacitors; Electrodes; Moisture; Oil insulation; Optical polarization; Petroleum; Power transformer insulation; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1994., Conference Record of the 1994 IEEE International Symposium on

Conference_Location

Pittsburgh, PA

ISSN

1089-084X

Print_ISBN

0-7803-1942-7

Type

conf

DOI

10.1109/ELINSL.1994.401445

Filename

401445