What are the different methods of speed control of induction motor?

What are the different types of speed control methods?

Thus, there are three general methods of speed control of D.C. Motors.

  • Resistance variation in the armature circuit: This method is called armature resistance control or Rheostat control.
  • Variation of field flux Ф This method is called field flux control.
  • Variation of the applied voltage.

What are the types of induction motor?

Types of Induction Motor: A Concise and Useful Guild

  • Types of Single-Phase Induction Motors. Split Phase Induction Motors. 2&3. Capacitor Start and Capacitor Start Capacitor Run Induction Motors. …
  • Types of Three-Phase Induction Motors. Squirrel Cage Induction Motor. Slip-ring or Wound Rotor Induction Motor.

Why starters are used in induction motor?

⇒ The starter is a device which is basically used to limit the starting current by supplying reduced voltage to the motor at the time of starting.

How do you calculate induction motor speed?

To calculate RPM for an AC induction motor, you multiply the frequency in Hertz (Hz) by 60 — for the number of seconds in a minute — by two for the negative and positive pulses in a cycle. You then divide by the number of poles the motor has: (Hz x 60 x 2) / number of poles = no-load RPM.

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