Torque speed characteristics of Squirrel cage & Slip ring induction motors

This video describes the Torque - Slip / Torque- Speed Characteristics of three phase squirrel cage induction motor and slip ring induction motor- also describes the Condition for the maximum torque - Pullout torque and Pullout torque equation

1. TORQUE-SPEED CHARACTERISTICS OF SQUIRREL CAGE & SLIP RING IM
(OR)
TORQUE-SLIP CHARACTERISTICS OF SQUIRREL CAGE & SLIP RING IM
Basic Torque Equation of DC motor
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Basic Torque Equation of AC motor
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Power in DC Circuit
V* I
Power in AC Circuit
V* I * cos
Torque -Multiplication of
2 magnetic fluxes
Power –Multiplication of
Voltage and Current

2. Torque Equation of AC Induction Motor
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SLIP
TORQUE
01
0
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SPEED
Low SlipHigh Slip
LOW SLIP REGION
HIGH SLIP REGION
Min speed N= 0
@ which slip S = 1
Max speed N= Ns
@ which slip S = 0
Starting
Torque
Critical Slip
Pull out
Torque
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General Torque Equation

4. Slip ring Induction Motor
(or)
Torque –Speed characteristics of Slip ring Induction motor
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Increasing
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5. What is the Condition
for Maximum Torque?
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PULL OUT TORQUE EQUATION
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