Industrial Fan Motor Gets Hot

Running it to failure isn t an option and heat mitigation measures do nothing to solve the underlying problem.

Industrial fan motor gets hot. I ve had a friend tell me to just toss it into the garbage but it s been ol. Motor temperatures limits are mainly based on bearing lubricant and winding thermal capability. For 70 years tpi corporation has been known as america s comfort conditioning company. It s time to get down to the cause of heat induced failure.

For example 266 degrees f for class b and the bearing and lubricant upper limit is usually around 212 degrees f. When i say motor i mean the housing over the motor hot enough to throw a pan over and start cooking bacon n eggs. Today as a u s. Touch in general isn t an excellent sensor.

It s got a dayton lr something 1 4 horsepower motor on it. The winding limit is given by the temperature class of the insulation system. I have an old 25 inch 3 blade industial fan. Testing the motor as part of a routine maintenance program also reduces the possibility of failure due to excessive heat.

Here s where to start looking. Based privately held manufacturer tpi corporation continues to produce innovative industry leading products for the electric heating fan and ventilation industrial lighting commercial controls and industrial oven markets. What feels hot to you is cool for somebody else. The frequent use of variable frequency drives vfds can result in detrimental effects to electric motors because of the condition of power in manufacturing facilities.

Don t judge the temperature of the motor just by feeling the outside surface with your hand. For example if a 100 hp motor has an unbalance factor of 3 percent the motor should be derated to 0 88 or 88 percent of capacity 88 hp. Maintaining the condenser fan motor can help to prolong the life of the ac compressor. If a motor is running in a much warmer environment than it was designed for it can overheat because the ambient temperatures will make it more difficult for the motor to cool down properly.

Electrical motor issues are frequent and consistent if there s a fundamental problem with your motor. It runs fine but after 5 minutes of use usually immediately the motor gets very hot. How to increase fan efficiency so as not to affect the pow.