H - Electricity – 02 – P
Patent
H - Electricity
02
P
322/19
H02P 9/00 (2006.01) H02K 17/42 (2006.01) H02P 9/46 (2006.01)
Patent
CA 1084113
ABSTRACT A background discussion of induction machine equivalent circuits, including operation as an induction generator, is provided. Selective shorting of the machine terminals is described, to convert at least some of the mechanical input energy into electrical field energy for the machine. Systems are described for accomplishing the selective shorting with a single-phase machine, including sensing of the zero-crossing of the output voltage to insure that the shorting is effected at the appropriate time to replenish the field. The shorting time duration can be varied as a function of load. A three-phase shorting circuit is also described.
259384
Borg-Warner Corporation
Macrae & Co.
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