Basic Electronics and Electrical Engineering: Chapter 5: Induction Motors

Frequency of Rotor Current - Induction Motor

Home | Department: ECE Department | Ist Year | Subject: Basic Electronics and Electrical Engineering |

Rotor current frequency = per unit slip × supply frequency

FREQUENCY OF ROTOR CURRENT

When the rotor is stationary, the frequency of rotor current is the same as the supply frequency = N_SP / 120. But when the rotor starts rotating, then the frequency depends upon the relative speed or on slip‒speed.

For a rotor speed N, the relative speed between the rotating magnetic field and the rotor is (N_S‒N). Hence the rotor frequency is given by,

f ' = (N_S‒N)P / 120

ƒ' = sf

ƒ' = sf

i.e., Rotor current frequency = per unit slip × supply frequency

Basic Electronics and Electrical Engineering: Chapter 5: Induction Motors : Tag: : - Frequency of Rotor Current - Induction Motor

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Basic Electronics and Electrical Engineering: Chapter 5: Induction Motors

Induction Motors: Introduction

Advantages and Disadvantages of Three Phase Induction Motors

Construction of 3-phase Induction Motor

Advantages of Squirrel Cage and Slip Ring Rotors - Induction Motor

Production of Rotating Magnetic Field in Three Phase Induction Motor

Operational Principle of Three Phase Induction Motor

Slip - Definition, Formula | Induction Motors

Frequency of Rotor Current - Induction Motor

Rotor Current in Three Phase Induction Motor

Equivalent Circuit of Three Phase Induction Motor

Rotor Torque in Three Phase Induction Motor

Starting Torque in Three Phase Induction Motor

Condition for Maximum Starting Torque - Three Phase Induction Motors

Torque Under Running Conditions - Three Phase Induction Motors

Condition for Maximum Torque Under Running Conditions - Three Phase Induction Motors

Torque-Slip Characteristics in Three Phase Induction Motors

Power Stages in an Induction Motor

Induction Motor Torque

Rotor Output of Induction Motor

Speed Control of Induction Motors

Starting of Induction Motors

Introduction of Single Phase Induction Motors

Types of Single Phase Motor

Making Single Phase Induction Motor Self Starting

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