Which of the following motor runs on higher power factor?
Advantages of capacitor run induction or PSC motor: A Centrifugal switch is not required. It has high efficiency. It has a high power factor because of a permanently connected capacitor.
Which type of motor will give relatively high starting torque?
The capacitor start motor develops a much higher starting torque of about 3 to 4.5 times of the full load torque.
What is the power factor of single phase induction motor?
The power factor of induction motors varies with load, typically from around 0.85 or 0.90 at full load to as low as about 0.20 at no-load, due to stator and rotor leakage and magnetizing reactances. Power factor can be improved by connecting capacitors either on an individual motor basis or, by preference, on a common …
Which of the following 1 phase motor have high efficiency?
A single-value capacitor motor has the following advantages: In this type of motor, no centrifugal switch is required. This motor has higher efficiency. It has higher power-factor because of a permanently-connected capacitor.
When the speed of DC motor is increased?
From the equation. (3) we can say, speed is inversely proportional to armature current. Thus, when the speed of the dc motor is increased, the armature current will decrease. So, the correct answer is “Option B”.
Which of the following motor has low starting torque?
Detailed Solution. Shaded-pole motor has the lowest starting torque whereas universal motor, capacitor start capacitor-run motor and repulsion induction motor have high starting torque.
Which of the following has the largest starting torque?
Due to greater phase difference capacitor Start motors have very high starting torque for a single-phase AC motor.