Patent ID: 11962205
Assignee: THE TIMKEN COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A refurbished rotor of a wound rotor induction motor/generator having diamond-shaped rotor windings removed from a rotor core thereof, the refurbished rotor comprising:
a plurality of windings assembled to the rotor core in a configuration operable in the wound rotor induction motor/generator, each of the plurality of windings manufactured from two separate bars, in particular, a top coil and a bottom coil, the top coil positioned in a rotor core slot at a position radially outward of a position of the bottom coil within another rotor core slot, wherein each top coil and each bottom coil has a flat rectangular cross-section,
wherein, on a connection end of the rotor where rotor leads are attached, the top coil of each of the plurality of windings has a flat end stacked radially with a flat end of the bottom coil of an adjacent one of the plurality of windings, and a joint is formed therebetween for establishing electrical continuity, and
wherein, for each of the plurality of windings, the top coil and the bottom coil have respective flat ends stacked radially and joined to each other on a non-connection end of the rotor opposite the connection end by a joint for establishing electrical continuity.