METHOD AND DEVICE FOR FORMING CORONA SHIELDING AND WINDING BAR WITH SUCH A SHIELDING

A method and device for forming corona shielding on a winding bar for high-voltage machines has end corona shielding in a first section and outer corona shielding in a second section that adjoins the first section. The method includes providing a first composition, including a carrier material and a...

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Bibliographic Details
Main Authors LANG, Steffen, STAUBACH, Christian, GRIEM, Harald, POHLMANN, Friedhelm
Format Patent
LanguageEnglish
French
German
Published 19.10.2022
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:A method and device for forming corona shielding on a winding bar for high-voltage machines has end corona shielding in a first section and outer corona shielding in a second section that adjoins the first section. The method includes providing a first composition, including a carrier material and a first filler therein and a first electrical resistance; providing a second composition, including the same carrier material and a second filler therein and a second electrical resistance, wherein the first and second fillers contain an identical dopable semiconductor material, doping of which determines electrical resistance of the first and second fillers, and wherein the second resistance differs from the first resistance; applying the first composition in the first section to form the end corona shielding; and applying the second composition in the second section to form the outer corona shielding.
Bibliography:Application Number: EP20130821835