NDLI: A thermal cycling type test for generator stator winding insulation

Content Provider	IEEE Xplore Digital Library
Author	Stone, G.C. Lyles, J.F. Braun, J.M. Kaul, C.L.
Copyright Year	1986
Abstract	A test has been designed and implemented which cycles the temperature between 40 degrees C and 150 degrees C in about 80 min by the use of circulating currents and cooling air. The test has been successfully used to evaluate the relative performance of similar stator bars made by three different manufacturers. The thermal cycling test was able to duplicate the insulation delamination process and presumably those insulation systems which performed well in the thermal cycling test could last longer in service. In addition to being used for pumped-storage generators, the thermal cycling test may be useful to evaluate the insulation system in combustion turbine generators.<>
Sponsorship	IEEE Power Engineering Society
Starting Page	707
Ending Page	713
Page Count	7
File Size	976063
File Format	PDF
ISSN	08858969
Volume Number	6
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1991-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulation testing Stator windings System testing Temperature Cooling Stator bars Manufacturing Delamination Performance evaluation Combustion
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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A thermal cycling type test for generator stator winding insulation