Electric Motor Testing Article

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.

Electric motor testing article.

Electric motor test repair guide. A motor is one part of a machine system and there are three areas of concern we must address. Mechanical motor testing often includes evaluating a motor s rotor for cracks and shorted laminations. Electric motors have had a reputation for being a mix of science and magic.

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 electric motors doesn t have to be a mystery. The power quality supplying the motor the motor itself and the driven load. Knowledge of the basics together with powerful new test equipment vastly simplifies the job.

How to test a 3 phase motor is discussed in this article. So when a motor fails to operate it may not be obvious what the problem is. 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. Electrical motor testing evaluates static parameters such as insulation the barriers between winding interconnections winding to earth wire damage current leakage and or dynamic parameters such as balance temperature rise distortion etc.

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. This article describes a c electrical motor troubleshooting. The electric version features an sp260d motor by siemens whose maximum power output is 260 kw 348 horsepower while peak torque comes in at 1 000 nm 737 pound feet. 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. 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.