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If you are concern about the rotation of the 3 phase motor, all you have to do is connect the power to the three terminal wires, make sure connections are tight, insulate one of the connections properly, the other two just put enough wrap insulation to prevent shortening of the power phases. Bump the motor, that is start it and quickly shut the power of, this way you can check for rotation, if motor is turning in the proper direction, proceed with a thorough insulation of the remaining two connections. If the motor is not turning in the proper direction, switch the connections that were no thoroughly taped, bump motor again it should have changed direction, proceed with taping up the connections.

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If there is a chance of damaging equipment connected to the motor by bumping it or a panel that has multiply motors connected to it there is a phase sequence meter that can be used to check proper phase sequence. On three phase service rebuilds this meter works great. Get the phasing right at the CDP and all or the motors that are connected to it will be in the right rotation.

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Q: How can find out the terminal sequence of a three phase induction motor?
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Is 3 phase induction motor is self starting?

Yes, that is one of the major advantages of a three-phase induction motor.


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That indicates a fault in the induction motor.


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Split Phase Induction Motor.


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Single phase Induction motor


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