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US 7,741,748 B2Granted
Device for improving the protection of a construction unit against electrical corona discharges
AssigneeALSTOM Technology Ltd
InventorThomas Baumann
Life of this patent
Estimating the term…
Abstract
A device for improving the protection of a component against surface discharges includes a non-woven substrate made of fibers and configured to be electrically insulating and a coating containing silicon carbide (SiC) disposed on the substrate.
Claims10
An overhang corona protection device for improving the protection of a component against electrical corona discharges, the component having an electric conductor sheathed by an insulation layer disposed directly adjacent to the electric conductor, the overhang corona protection device consisting essentially of:
- a non-woven substrate made of fibers and configured to be electrically insulating and being disposed directly adjacent to the insulation layer;
- and
- a coating containing silicon carbide (SiC) disposed on the substrate.
An electric machine comprising:
- a stator with a slot;
- a conductor located in the slot, sheathed by an insulation layer disposed directly adjacent to the conductor and having overhanging parts;
- and
- an overhang corona protection device covering at least a portion of the overhanging parts, wherein the protection device comprises:
- a first layer disposed directly adjacent to the insulation layer, the first layer comprising a non-woven substrate made of fibers and configured to be electrically insulating, and
- a second layer forming an outer layer of the protection device, the second layer comprising a coating containing silicon carbide (SiC) disposed on the non-woven substrate.
3 more elements
Dependencies are inferred from the claim text.