Motor starter

Details Motor starter Motor starter

1997-10-20

2000-02-15

Sircus, Brian

Electricity: motive power systems

Induction motor systems

Primary circuit control

318771, 318781, 318794, H02P 126

Patent

active

060256931

ABSTRACT:
An improved method of starting three-phase and three-winding induction motors from a single phase supply reconfigures the 6 accessible windings of a standard induction motor into first an optimal starting configuration which, for example, may reduce starting torque or starting current and then an optimal run configuration. One example of a run configuration is a normal delta along with an inverted delta; another example is a (voltage phasor half-hexagon) run configuration where the windings are all series connected with 120.degree. phase differences.

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