On-line monitoring of rotor shorted turns

Author

Jenkins, M.P.

Author_Institution

Parsons Power Generation Systs. Ltd., UK

fYear

1994

fDate

12-14 Dec 1994

Firstpage

55

Lastpage

60

Abstract

Large generators for use with steam and gas turbines are subject to high mechanical and electrical stress which may lead to deterioration of the insulation. The rotors, in particular, may develop short circuits and there is a need for the operators to be aware of this situation. The manner in which shorted turns can occur in the rotors of generators and the difficulties associated with monitoring for such shorted turns are indicated. An online monitor which has been developed to solve this problem is described together with some operating experiences which have been learnt from the use of it

Keywords

automatic test equipment; automatic testing; computerised monitoring; electric breakdown; gas turbines; insulation testing; machine insulation; machine testing; microcomputer applications; power engineering computing; rotors; steam turbines; turbogenerators; electrical stress; gas turbines; insulation; mechanical stress; microcomputers; monitoring; operating experiences; rotor shorted turns; short circuits; steam turbines; turbine-generators;

fLanguage

English

Publisher

iet

Conference_Titel

Life Management of Power Plants, 1994., International Conference on

Conference_Location

Edinburgh

Print_ISBN

0-85296-627-X

Type

conf

DOI

10.1049/cp:19941094

Filename

378858