Device for indicating the state of a single-phase asynchronous m

Details Device for indicating the state of a single-phase asynchronous m Device for indicating the state of a single-phase asynchronous m

1995-02-22

1996-07-23

Cabeca, John W.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318786, 318783, H02P 144

Patent

active

055392954

ABSTRACT:
Device for indicating the state of a single-phase asynchronous motor (MO) with a phase-shift capacitor, including an automatic stop switch (FC1, FC2) on each live conductor and a thermal switch (TH) on the return conductor, and the direction of rotation of which can be reversed by means of a changeover switch (CM). The indicator device consists of a current detector (DC), of a voltage detector (DT) and of processing logic (LT) respectively delivering information on the direction of rotation of the motor, the state of the live conductor switches and of the thermal switch.

REFERENCES:
patent: 4468603 (1984-08-01), Vander-Meer et al.
patent: 4604563 (1986-08-01), Min
patent: 4622506 (1986-11-01), Schenanske et al.

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