Refer to the circuit shown in Figure 3–7. What type of switch is connected in series with the motor, and is the switch normally open, normally closed, normally open held closed, or normally closed held open?

Refer to the circuit shown in Figure 3–7. What type of switch is connected in series with the motor, and is the switch normally open, normally closed, normally open held closed, or normally closed held open?

Understanding Motor Controls

4th Edition

ISBN:9781337798686

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter3: Manual Starters

Section: Chapter Questions

Problem 8RQ

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Electrical Motor

An electric motor can be described as an electrochemical machine that transforms electrical energy into mechanical energy. This mechanical energy is utilized to revolve the pump, fan, and impeller, operate compressors and lift bodies. The motors employed in industries operate on 70% electrical load.

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