How Do You Troubleshoot A 3-Phase Electric Motor?

Three-phase motors are normally used in commercial-type operations. These motors have fewer parts and are more sturdily built than their single-phase counterparts. As a result these motors are less prone to malfunctions and tend to operate for many years.

Because of their industrial use, if they are receiving the correct voltage, they are normally quickly replaced or sent to be rebuilt rather than being extensively troubleshot. Follow the steps below to check for the most common problems for three-phase motors. Take input voltage to the motor using the volt ohmmeter.

The motor-specified voltage must be present on all three phases. If not, check supply circuitry, breakers and condition of the motor's power cord. If the voltage is good, go to Step 2.

Examine the motor's electrical connections and terminals. Remove power to the motor and repair any damaged or loose connections. Remove motor voltage and disengage the motor from the machine that it is running.

Reconnect motor voltage and ... more.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.