Maintaining the Cleanliness of the Exterior of the Motor, the Fan and the Fan Cover Grill/Screen is Critical to Getting the Most Life Out of Your Motors.
Keeping the exterior of motor frames free of debris and buildup is necessary to achieve the normal lifespan of the winding. On a TEFC motor, the fins on exterior of motor are made to direct the air flow over the motor frame for heat dissipation. When they become restricted or filled with foreign material, it may cause the motor to run at an elevated temperature creating a thermal deterioration of the winding insulation. For every 10 degrees C that you increase the temperature of the motor, it cuts the insulation life in half. Of course the air will originate with the [...]