efficiency is obtained from a capacitor start induction run motor when the motor is operated at its rated capacity.
5) Comment on the starting current and starting torque values of the Capacitor Start Induction Run Motor compared with the split-phase induction motor.
The design of a capacitor start induction run motor is similar to the design of a split-phase induction motor. The capacitor start induction run motor, however, has a heavier start winding with a capacitor in the circuit to provide a higher starting power. The starting unit in the split-phase induction motor is not in the operating circuit. Because the start capacitor is in series with the start circuit in the capacitor start induction run motor, it creates higher starting torque than is true of the split-phase induction motor. Starting torque is lower in the split-phase induction motor. Starting current also is much lower in the split-phase induction motor than is the case in a capacitor start induction run motor.
6) What is the optimum value of capacitance for capacitor start-induction run motor?
The optimum value of the capacitance for a capacitor start-indication run motor is the capacitance level that reduces turn-off losses while minimizing turn-on effects.
7) What is the maximum power factor value, and when does it occur?
The power factor is the ratio of kilowatts (input) to kilovolt-amperes (output). Maximum power factor value is 1.0. The maximum power value occurs when kilowatts (input) is equal to kilovolt-amperes (output).
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