Patent ID: 11972893
Assignee: SIEMENS ENERGY GLOBAL GMBH & CO. KG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A shielded coil assembly, comprising:
a coil having an outer surface, an inner surface, an upper end surface and a lower end surface and a first insulating material formed over the outer surface, inner surface, upper end surface and lower end surface of the coil; and
a conductive shield comprising a conductive paint applied along the first insulating material so that the conductive paint extends over at least a portion of each of the outer surface, inner surface, upper end surface, and lower end surface of the coil;
wherein the conductive paint includes a loop separator region having an interruption in the conductive paint along the outer surface, inner surface, upper end surface, and lower end surface of the coil;
wherein the loop separator region comprises a gap in the conductive paint that extends around the outer surface, inner surface, upper end surface, and lower end surface of the coil to form an open loop in the conductive paint;
wherein the shielded coil assembly further comprises a semi-conductive paint comprising an electrical resistance of 1 kilo-ohm/sq in/mil to 10 kilo-ohm/sq in/mil applied directly to a surface of the first insulating material, the conductive paint applied directly to a surface of the semi-conductive paint.