Anyone know if on a rotary phase converter if anything in the "box"
(with the caps and contactors) could cause over heating of the induction
motor that is part of this system?
I've got one getting hot to the point where I can smell the insulation
on the windings burning. A 2 hp motor load is being used and the
convertor is rated 5 hp using a Siemens induction motor. The box has 4,
90/5 uf 370 vac caps. A contactor which energizes the system motor,
which works, (it pulls in till the motor gets to speed and then drops
out), and a time delay relay that I don't know its function.
Just started getting hot after 14 years of moderate use. The converter
motor comes up to speed and does supply the 3 phase. (Or at least it is
running the machines). I am thinking there is a short in the coverter
Also are the caps in the box used to start the motor or do they serve
some other purpose? Any feed back greatly appreciated. Thanks
17 years ago