Electric Motor Testing Article

Mechanical motor testing often includes evaluating a motor s rotor for cracks and shorted laminations.

Electric motor testing article.

To check an electric motor to see why it failed look at the outside for signs of debris that has been sucked into the motor windings as well as broken mounting holes or feet and darkened paint that could indicate excessive heat. But smart companies understands is that what this means for maintenance programs is billions of dollars of lost revenue through increased motor repair costs downtime and waste in industrial and commercial companies. Testing of a three phase electric motor has to be conducted in order to get continuous services from motors without any break down or failure. The power quality supplying the motor the motor itself and the driven load.

So when a motor fails to operate it may not be obvious what the problem is. Static electric motor testing looks at the motor s insulation system while online or dynamic electric motor monitoring can identify issues regarding power quality and load issues. Here we provide an electric motor diagnostic table a troubleshooting guide that helps diagnose and repair most electric motor problems for motors found on hvac equipment in buildings such as air conditioners furnace or air handler blower fans oil burner motors well pumps and condensate return. Electric motor test repair guide.

Home technical articles testing and commissioning procedure for electric motors scope of motor testing it should be noted that the scope of motor testing depends upon the motor type and size this being indicated on the inspection forms. The electric power research institute epri conducted a survey which brought into the light that 48 of motor failures are because of electrical failures. This might result in unexpected motor failures when critical services from such motors are required affecting availability of plants. This article describes a c electrical motor troubleshooting.

Testing electric motors doesn t have to be a mystery. Electric motors have had a reputation for being a mix of science and magic. After bearing failure electrical faults are the most common mode of motor failure so in addition a properly planned electrical testing scheme is important for making sure of the plant reliability. Knowledge of the basics together with powerful new test equipment vastly simplifies the job.

Electric motor testing is usuallly the first thing to be sacrificed when cutting back on operational expenses. A motor is one part of a machine system and there are three areas of concern we must address.