Hoping someone can help on a little problem of mine !!
I have a 2.2KW 3phase extractor fan motor which is bifurcated (inside
seperate ducting within the flue). The fan motor is controlled by a
transformer type device rather than an inverter. The motor seems to be
getting very hot at slower speeds. I am considering extra cooling by
inserting a 4" axial fan (bathroom extractor fan) into the ducting access
plate to add extra cooling. Question is, is there an easy way on monitoring
the motor's temperature? to avoid burning the thing out? I thought about
one of those digital thermometers with a long probe that you can use when
cooking turkeys etc. Would this work? What sort of temperature would be
normal for a fan motor running at low speeds?
Any help would be greatly appreciated.
Cheers.
Brad.