The use of conductivity factors for estimating the degradation state of insulation systems of medium-power electrical machines

Author

Notingher, P.V. ; Dumitran, L.M. ; Busoi, S. ; Balescu, E. ; Tanasescu, G.

Author_Institution

Politeh. Univ. of Bucharest, Bucharest

fYear

2008

fDate

21-24 April 2008

Firstpage

126

Lastpage

129

Abstract

The use of absorption/resorption currents to characterize the ageing state of electrical equipmentspsila insulation systems is well known. The maximal values and the slopes of these currents give important information regarding the paper-oil insulations for power transformers and energy cables, but these are also used for insulation systems of medium and/or high power machines. In general, the values of the conductivity factors are rarely used.

Keywords

ageing; electrical conductivity; insulation testing; machine insulation; ageing state; conductivity factor; electrical equipment insulation systems; insulation degradation; mediumpower electrical machines; Absorption; Aging; Cable insulation; Cables; Conductivity; Degradation; Dielectrics and electrical insulation; Power transformer insulation; Power transformers; State estimation; Absorption/resorption currents; Insulation systems; Rotating machines; Thermal ageing;

fLanguage

English

Publisher

ieee

Conference_Titel

Condition Monitoring and Diagnosis, 2008. CMD 2008. International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-1621-9

Electronic_ISBN

978-1-4244-1622-6

Type

conf

DOI

10.1109/CMD.2008.4580246

Filename

4580246