Basic Electronics and Electrical Engineering: Chapter 5: Induction Motors
Induction Motor Torque
The mechanical power P available from any electric motor.
INDUCTION
MOTOR TORQUE
The mechanical power P
available from any electric motor can be expressed as,
P = 2πΝΤ / 60 Watts
Torque developed by the
motor is,
T= 60P / 2πΝ N‒m
T= 9.55(P/N) N‒m
Where, N is the speed
of the motor in rpm.
An induction motor
develops gross torque Tg due to gross rotor output Pm.
This value can be expressed either in terms of rotor input Pr or
rotor gross output Pm as given below.
Tg = 9.55 Pm/N N‒m
The shaft torque Tsh
is due to output power, Pout which is less than Pm because
of rotor friction and windage losses.
Tsh = 9.55 Pout/N
N‒m
Basic Electronics and Electrical Engineering: Chapter 5: Induction Motors : Tag: Basic Engineering : - Induction Motor Torque
Basic Electronics and Electrical Engineering: Chapter 5: Induction Motors
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Basic Electronics and Electrical Engineering
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