Field experience with multigas on-line monitoring of power transformers

Author

Sparling, Brian ; Aubin, Jacques ; Glodjo, Ahmed

Author_Institution

Syprotec, Montreal, Que., Canada

Volume

2

fYear

1999

fDate

11-16 Apr 1999

Firstpage

895

Abstract

Dissolved-gas analysis has long been recognized as the best method for the detection and identification of incipient faults in power transformers. This diagnostic method has progressed one step further with the introduction of the TNU on-line multigas monitor. Field demonstration has been in progress since June 1997 on a critical transformer of the Manitoba Hydro power system. On-line multigas monitoring has allowed control over the fault evolution. Transformer life has been extended more than one year, under safe conditions, in spite of a severe fault

Keywords

chemical analysis; chemical variables measurement; computerised monitoring; electrical faults; fault location; insulation testing; power transformer insulation; power transformer testing; transformer oil; HYDRAN monitor; Manitoba Hydro power system; TNU on-line multigas monitor; dissolved-gas analysis; fault evolution control; incipient faults detection; incipient faults identification; multigas on-line monitoring; power transformers; transformer nursing unit; Dissolved gas analysis; Electrical fault detection; Fault detection; Fault diagnosis; Gases; Hydrogen; Monitoring; Oil insulation; Power transformers; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference, 1999 IEEE

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-5515-6

Type

conf

DOI

10.1109/TDC.1999.756168

Filename

756168