To start a three-phase motor, three switches (A, B and C) are required in such a...

To start a three-phase motor, three switches (A, B and C) are required in such a way that its operation occurs only under the following conditions: • When closed only B • When closed only C • When A and B are simultaneously closed and C is not closed • When A and C are simultaneously closed and B is not closed

Expert Solution

Three Phase Power

Three-phase motors are motors that are designed to run on the three-phase alternating current (AC) power used in several industrial applications. AC electricity changes direction from negative to positive and back many times a second. The AC you get in your house, for example, goes from negative to positive and back again 60 times in 1 second. AC changes power in a smooth continuous wave called a sine wave. Three-phase AC has three sources of AC power, all out of phase with each other. That means that no two AC waves are ever at the same point at the same time.

To start a three-phase motor, three switches (A, B and C) are required in such a way that its operation occurs only under the following conditions:

• When closed only B

• When closed only C

• When A and B are simultaneously closed and C is not closed

• When A and C are simultaneously closed and B is not closed

so what do you want me to do for you now?

samet mamat answered 2 years ago

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