Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1983-04-11
1984-10-09
Truhe, J. V.
Electricity: motive power systems
Induction motor systems
Primary circuit control
310198, H02P 748
Patent
active
044764227
ABSTRACT:
A single phase alternating current electric motor is provided with a main stator winding having two coil groups each including the series connection of three coils. These coil groups can be connected in series for six pole operation and in parallel for four pole operation. The coils are approximately equally spaced around the periphery of the machine but are not of equal numbers of turns. The two coil groups are identically wound and spaced 180 mechanical degrees apart. One coil of each group has more turns and a greater span than the other two coils.
REFERENCES:
patent: 2464253 (1949-03-01), Morrill
patent: 3233160 (1966-02-01), Rawcliffe
patent: 3619730 (1971-11-01), Broadway
patent: 3619748 (1971-11-01), Eastham
patent: 4066937 (1978-01-01), Pfarrer et al.
Lenart R. P.
Ro Bentsu
Truhe J. V.
Westinghouse Electric Corp.
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