Equivalent circuits & shaded pole motors

AS A RESULT of study and experimental work, a present-day shaded pole motor with good accelerating characteristics and 35- to 40-per cent efficiency is not uncommon. With improved efficiency, the horsepower ratings of these motors are also extended from the sub fractional to the fractional range. Experimental results reading to this improvement can be co-ordinated and integrated into infallible rules for designing shaded pole motors with the aid of the equivalent circuit.