Balanced split-phase electric motor

Electricity: motive power systems – Induction motor systems – Primary circuit control

Patent

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Details

318817, 310155, 310190, 310192, 310193, H02P 144

Patent

active

041329325

ABSTRACT:
A motor is disclosed in which the main stator winding of, for example, a squirrel case inducting motor, is connected in series with a capacitor so that the capacitor, together with the input voltage, causes the stator core to periodically switch from a nonsaturated to a saturated condition and vice-versa so that the flux density is maintained at a uniform high level. A second stator winding is provided in parallel with the first stator winding and capacitor which second winding serves as the phase winding and causes the motor to operate as a balanced split phase motor having a high efficiency over a broad range of operating points.

REFERENCES:
patent: 2030678 (1936-02-01), Bergman
patent: 2094512 (1937-09-01), Whitby
patent: 3056053 (1962-09-01), Fink

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