NDLI: Improved groundwall insulation system for air cooled generators

Content Provider	IEEE Xplore Digital Library
Author	Emery, F.T.
Copyright Year	1999
Description	Author affiliation: Siemens Westinghouse Power Corp., Alafaya Trail, FL, USA (Emery, F.T.)
Abstract	A new insulation system has been developed for coils that are used in air cooled generator stator windings. The power density of these air cooled generators can be increased through better thermal performance of the stator coil insulation. The approach taken to achieve better thermal performance is to reduce the groundwall insulation thickness and at the same time improve the coil's dielectric parameters. This paper describes a new air cooled stator coil insulation design that incorporate design improvements in three major areas of the coil's insulation components. These are the groundwall insulation, the Roebel filler material, and the external corona suppression. Each of these improvements are reviewed with respect to the role they play in the overall dielectric performance of the new coil design.
Starting Page	25
Ending Page	28
File Size	382391
Page Count	4
File Format	PDF
ISBN	0780348931
DOI	10.1109/PESW.1999.747420
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-01-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils Testing Dielectrics and electrical insulation Voltage Stators Bars Partial discharges Electrodes Power generation Performance evaluation
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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