40
Induction Motors (Three Phase)
OBJECTIVES
In this chapter you will learn about:
- Rotating magnetic fields
- Direction of rotation
- Slip and its effect
- Construction of a three-phase induction motor
- WRIM and SCIM
- Losses and efficiency
- Maximum power
- Induction motor characteristics
- Starting techniques for induction motors
- Induction motor parameters
- Simple problems on the above topics
- Induction motor with squirrel cage motor
40.1 INTRODUCTION
The three-phase induction motor has a simple yet exceedingly robust construction which is comparatively cheap to manufacture. It also has good operating characteristics that make it a suitable drive for ...
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