Motor starting switch with dual load disconnect

Details Motor starting switch with dual load disconnect Motor starting switch with dual load disconnect

1978-08-31

1984-09-25

Scott, J. R.

Electricity: motive power systems

Induction motor systems

Primary circuit control

200 80R, 310 68E, H02P 142, H01H 3510, H02K 1100

Patent

active

044737890

ABSTRACT:
A motor starting switch including a pair of auxiliary switches operable in response to the stopping of the drive motor of an electrical appliance or the like for disconnecting both sides of an electrical load in the appliance (e.g., for disconnecting a heating element) from the input power lines thereby to reduce shock and fire hazards of the appliance due to a short circuit of the load when the appliance is turned off, and for automatically connecting the load to the input lines of the appliance in response to start up of the motor.

REFERENCES:
patent: 4034173 (1977-07-01), Crow et al.
patent: 4160885 (1979-07-01), Ellicott et al.

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