Electrical Machines II: UNIT IV: Starting and Speed Control of Three Phase Induction Motor
Introduction
Starting and Speed Control of Three Phase Induction Motor
Let us study in detail why starter is required for an induction motor.
Introduction
Uptill
now we have discussed about various performance characteristics of an induction
motor. The three phase induction motors are self starting due to rotating
magnetic field. But the motors show tendency to draw very high current at the
time of starting. Such a current can be five to eight times the rated current
and can damage the motor winding. Hence there should be certain device which
can limit such high starting current. Such a device which limits high starting current
is called a starter. In this chapter, the various types of starters and various
methods of starting an induction motor are discussed. In practice, it is
necessary for certain applications, to control the speed of an induction motor.
Though basically an induction motor is constant speed motor, some methods of
controlling the speed of an induction motor are also discussed in this chapter.
Let
us study in detail why starter is required for an induction motor.
Electrical Machines II: UNIT IV: Starting and Speed Control of Three Phase Induction Motor : Tag: Engineering Electrical Machines - II : Starting and Speed Control of Three Phase Induction Motor - Introduction
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Electrical Machines II
EE3405 Machine 2 EM 2 4th Semester EEE Dept | 2021 Regulation | 4th Semester EEE Dept 2021 Regulation