30.012 Q2/A/ A three phase, 4-pole, 410V, 50HZ, SRIM has 3.8% full load slip, ratio of stator to rotor turns equal 1:8 and standstill rotor impedance is 0.09+jQ.58 2/phase. Find: 1) full load torque. 2) speed at which torque is maximum. 3) maximum torque. 4) output power at maximum torque. 5) the resistance value to be inserted in rotor to make starting torque equal maximum torque. B/ Derive the maximum slip. Ts/Tm and Ts/Tr. TP WIT

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter32: Three-phase Motors
Section: Chapter Questions
Problem 6RQ: Name three factors that determine the torque produced by an induction motor.
Question
Answer
1 and
3 and 5
30.012
Q2/A/ A three phase, 4-pole, 410V, 50HZ, SRIM has 3.8% full load slip, ratio of stator
to rotor turns equal 1:8 and standstill rotor impedance is 0.09+jQ.58 2/phase. Find: 1) full
load torque. 2) speed at which torque is maximum. 3) maximum torque. 4) output power
at maximum torque. 5) the resistance value to be inserted in rotor to make starting torque
equal maximum torque.
B/ Derive the maximum slip. Ts/Tm and Ts/Tr.
*P₂- WIT
Transcribed Image Text:Answer 1 and 3 and 5 30.012 Q2/A/ A three phase, 4-pole, 410V, 50HZ, SRIM has 3.8% full load slip, ratio of stator to rotor turns equal 1:8 and standstill rotor impedance is 0.09+jQ.58 2/phase. Find: 1) full load torque. 2) speed at which torque is maximum. 3) maximum torque. 4) output power at maximum torque. 5) the resistance value to be inserted in rotor to make starting torque equal maximum torque. B/ Derive the maximum slip. Ts/Tm and Ts/Tr. *P₂- WIT
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