Electric Motor Testing Article

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.

Electric motor testing article.

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. The electric power research institute epri conducted a survey which brought into the light that 48 of motor failures are because of electrical failures. 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. 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.

Knowledge of the basics together with powerful new test equipment vastly simplifies the job. Electric motors have had a reputation for being a mix of science and magic. 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 testing is usuallly the first thing to be sacrificed when cutting back on operational expenses.

How to test a 3 phase motor is discussed in this article. 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. Mechanical motor testing often includes evaluating a motor s rotor for cracks and shorted laminations. So when a motor fails to operate it may not be obvious what the problem is.

This article describes a c electrical motor troubleshooting. Electric motor test repair guide. 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. Testing electric motors doesn t have to be a mystery.

A motor is one part of a machine system and there are three areas of concern we must address. 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.