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How to add additional cooling to motor
This is P&H crane that was new in 1991 when it was installed. Like I said above we are using it more than the rated duty cycle and the building is probably a lot warmer than it was designed for, just enough that we are tripping the motor on overheat. This is not a new problem, just an annoying...- CREF
- Post #11
- Forum: Heat Transfer & Thermodynamics engineering
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How to add additional cooling to motor
You are correct it is not TEFC. The duty cycle of the crane was not specified correctly and we are using it at or slightly beyond its rated duty cycle. We are trying to figure out how to mount fan. There is not much room. I think that is the best solution though.- CREF
- Post #7
- Forum: Heat Transfer & Thermodynamics engineering
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How to add additional cooling to motor
It is not very old and is TEFC and is probably not dirty based on no history of this. The motor doesn't fail it just shuts down due when RTD (or thermistor?) hits its trip point. It happens when there are a lot of start/stops and heavy usage in warm weather. Hoping to knock temeprature down a...- CREF
- Post #3
- Forum: Heat Transfer & Thermodynamics engineering
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How to add additional cooling to motor
The hoist motor on a monorail crane occaisonally overheats during heavy use in hot weather. We have no easy way to cool the building or upgrade the motor. I'm hoping to find a simple way to provide additional cooling to the motor. We will attempt to add fan to circulate more air around the...- CREF
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- Replies: 13
- Forum: Heat Transfer & Thermodynamics engineering
