On-line a off-line diagnostics for power station HV equipment

Author

Aksyonov, Yu.P. ; Golubev, A. ; Muchortov, A. ; Rodionov, V. ; Minein, V. ; Romanov, B. ; Churtin, C. ; Ignatushin, A.

Author_Institution

DIACS, Moscow, Russia

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

637

Lastpage

643

Abstract

Experience accumulated from online and offline diagnostics and nondestructive tests to reliably determine the condition of service-aged HV electrical equipment are discussed. Under test were: switchgear; power transformers; underground transmission lines; metalclad substations; and rotating machines. Methods for assessing the condition of their electrical insulation systems included: partial discharge activity tests and complex conductivity measurements; infrared thermography; dissolved gas analysis; and dissipation-factor measurements applied to current transformers and bushings

Keywords

current transformers; infrared imaging; insulation testing; maintenance engineering; partial discharge measurement; power stations; power transformer insulation; power transformer testing; substations; switchgear insulation; switchgear testing; bushings; complex conductivity measurements; current transformers; dissipation-factor measurements; dissolved gas analysis; electrical insulation condition assessment; infrared thermography; metalclad substations; offline diagnostics; online diagnostics; partial discharge activity tests; power station HV equipment; power transformers; rotating machines; service ageing; switchgear; underground transmission lines; Conductivity measurement; Dielectrics and electrical insulation; Nondestructive testing; Power generation; Power system reliability; Power transformers; Power transmission lines; Rotating machines; Substations; Switchgear;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 1999. Proceedings

Conference_Location

Cincinnati, OH

ISSN

0362-2479

Print_ISBN

0-7803-5757-4

Type

conf

DOI

10.1109/EEIC.1999.826285

Filename

826285