Abstract:
As the industries develop and diversify, rather than
the motors with fixed revolution, the variable speed
motors of large variable speed ratio and easy maintenance
and operation have been in greater demand.
The V.S. motor is largely divided into the induction
motor part which is a driving motor, the V.S. coupling
part consisting of the fixed speed rotating part directly
connected to the driving motor and the accelerating
part connected to the load side, and the speed controlling
part, which serves the purpose of ensuring that a
deviating voltage is fed back to the input of an amplifier
by comparing at all times the- detected voltage
fed back from the tachogenerator and proportional
with the voltage and loaded speed set by the control
board.
