Very high current field winding for dynamoelectric machine rotor

Claim 1

A field winding for a two pole dynamoelectric machine rotor of the type having a body portion formed with axially extending insulated slots and a reduced spindle portion at either end thereof comprising: a. at least one electrical conductor bar disposed in each axially extending rotor body insulated slot; each slot defined by a pair of radially extending arms and each arm terminating in an enlarged retaining lip portion; each electrical conductor extending radially outward from within its respective slot approximately to the rotor surface; b. an inner coil terminating conductor for each rotor pole; c. an outer coil terminating conductor for each rotor pole; said inner and outer coil terminating conductors electrically connected to said rotor body conductor bars; d. a pole to pole connector electrically connecting said inner coil terminating conductors; e. a plurality of terminal studs connected to a negative and positive source of excitation current; and, f. a plurality of electrical leads connecting the terminal studs to outer coil terminations, said terminal studs and said electrical leads each are arranged with communicating internal cooling passages and having a coolant inlet on each terminal stud disposed closer to the rotor spindle than a coolant outlet from said lead.