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Very high current field winding for dynamoelectric machine rotor

  • US 3,894,253 A
  • Filed: 10/25/1973
  • Issued: 07/08/1975
  • Est. Priority Date: 10/25/1973
  • Status: Expired due to Term
First Claim
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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.

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