Starting device for a single-phase motor

Details Starting device for a single-phase motor Starting device for a single-phase motor

1973-11-16

1977-10-04

Rubinson, Gene Z.

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

318229, H02P 144

Patent

active

040526500

ABSTRACT:
The invention relates to a single-phase motor assembly which includes in the circuit means thereof a starting winding in series with a starting resistor having NTC and PTC characteristics. The NTC and PTC characteristics are sequentially related. The NTC characteristic has an ohmic range which extends from a value above to a value below a predetermined critical ohm value at which a current sufficient for starting the motor flow in the starting winding. The PTC characteristic has an ohm range which extends from a value below to a value above the critical ohmic value referred to.

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