Suppression of slot discharges in a cable wound generator

This paper presents a detailed mathematical study to calculate the distribution of the voltages and currents developed on the semiconducting layer of the cable having many points of contact with the stator slot wall and an insulating/semiconducting fixation hose. The calculations are verified experi...

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Bibliographic Details
Published in:IEEE transactions on energy conversion 2003-09, Vol.18 (3), p.458-465
Main Authors: Touma-Holmberg, M., Hjarne, S.
Format: Article
Language:English
Subjects:
Cable insulation
Cables
Coatings
Conductors
Contact
Dielectrics and electrical insulation
Direct power generation
Electric potential
Mathematical analysis
Power cable insulation
Power cables
Semiconductivity
Stators
Voltage
Walls
Wounds
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Summary:This paper presents a detailed mathematical study to calculate the distribution of the voltages and currents developed on the semiconducting layer of the cable having many points of contact with the stator slot wall and an insulating/semiconducting fixation hose. The calculations are verified experimentally on the world's first high-voltage turbo Powerformer installed in Eskilstuna, Sweden, and rated at 136 kV and 42 MVA.
ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.2003.815855