A 3-phase and 6-pole asynchronous motor is fed from a 100 Hz source. The engine speed under a certain load is up to 1940 rpm. If the load torque of the motor decreases by 20%, which of the following will the new speed of the motor be as given? (Note: You can think of the speed-torque relationship of the motor as linear in the steady operation region.) a. 1979 rpm b. 1976 rpm c. 1952 rpm D. 1967 rpm e. 1928 rpm
A 3-phase and 6-pole asynchronous motor is fed from a 100 Hz source. The engine speed under a certain load is up to 1940 rpm. If the load torque of the motor decreases by 20%, which of the following will the new speed of the motor be as given? (Note: You can think of the speed-torque relationship of the motor as linear in the steady operation region.) a. 1979 rpm b. 1976 rpm c. 1952 rpm D. 1967 rpm e. 1928 rpm
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A 3-phase and 6-pole asynchronous motor is fed from a 100 Hz source. The engine speed under a certain load is up to 1940 rpm. If the load torque of the motor decreases by 20%, which of the following will the new speed of the motor be as given? (Note: You can think of the speed-torque relationship of the motor as linear in the steady operation region.)
a.
1979 rpm
b.
1976 rpm
c.
1952 rpm
D.
1967 rpm
e.
1928 rpm
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