Answer Posted / karpagam
The motor speed control for controlling the speed
of an electric induction motor is by modulating the
amplitude and frequency of the driving voltage. When load
increases the speed control controls the speed of the
machine so as to be relatively constant with respect to
frequency of the driving voltage. Obviously,the speed
control controls the amplitude of driving voltage in
proportion to the square of the frequency.
Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
how calculate gd2 of ht motors
briefly explain the main blocks found in a microprocessor based system
Maintenance of transformer???
what is circuit breaker in transfomer and where it used
How much minimum insulation required between 11kv/3.3kv transformer windings?
what questions will be asked for 11/33KV licence interview APSEB hyderabad. Can any one share question and answers.
how we do Vector group ,magnetic balance and tap changer test in Transformer?
Operation of isolators.
from where the self excitrd induction generator get the power?why is the voltage regulation is poor of seig?
What is the tension required for the 25000 CFM AHU belt
what is the difference between single ratio, multiple core and multiple ratio, multiple core ? please explain.
What are the operation carried out in thermal power station?
What happen if 200 KVAR capacitor connected to power continuesly?
how to calculate singlephase motor efficiency?
what is the difference between earth leakage and earth fault?