Stray losses in large synchronous machines

The results of an investigation of the components of stray losses in large salient pole synchronous machines are presented. Stray losses are caused by the magnetic leakage and fringing flux in the rotating machine, and their prediction is subject to uncertainties in the machine design. A 750 HP expe...

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Bibliographic Details
Published inIEEE transactions on energy conversion Vol. 7; no. 1; pp. 148 - 153
Main Author Karmaker, H.C.
Format Journal Article Conference Proceeding
LanguageEnglish
Published New York, NY IEEE 01.03.1992
Institute of Electrical and Electronics Engineers
Subjects
A.c. Machines
Applied sciences
Circuits
Electric machines
Electrical engineering. Electrical power engineering
Electrical machines
Exact sciences and technology
Instruments
Loss measurement
Magnetic field measurement
Magnetic flux
Power measurement
Production facilities
Synchronous machines
Testing
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Summary:The results of an investigation of the components of stray losses in large salient pole synchronous machines are presented. Stray losses are caused by the magnetic leakage and fringing flux in the rotating machine, and their prediction is subject to uncertainties in the machine design. A 750 HP experimental machine has been designed, constructed, and extensively instrumented and tested for direct measurement of the loss components. The nature and distribution of the stray losses in various parts of the machine are described.< >
ISSN:0885-8969
1558-0059
DOI:10.1109/60.124554