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I know the best way is to buy/build a phase converter to get the 208V 3ph required. Just to get it going and running a few boards. Don't mind if it takes long to heat up or the board flow process has to be slowed down.
We have 240V in the industrial unit (warehouse) and plenty of amps.
I am talking about the heating elements only, I have a solution to make the control circuitry run.
- Comments(1)
A****min
Oct 30.2019, 17:22:02
The heating elements are all going to be single phase. Possibly the SSRs that control them could be 3-phase, but likely each zone is run with a single element off one of the phases. So, you could rewire the whole control box to run off single phase. However, that will increase the current draw on the single phase feed by a factor of 1.732. So, some heavier wire may need to be put in. Another problem is that running 208 V heating elements on 240 V will increase the current draw in the element by 15%, and the power delivered by 33%. But, you could use a 240/208 autotransformer so at least the proper voltage would be supplied. I'd recommend that. A phase converter will not change the voltage, it will just generate a 3rd phase. I doubt a rotary phase converter will work very well on a massive resistive load. And, the Cedarburg-style "phase converters" with the starting capacitor and relay will do nothing at all (except catch fire).
60 A?? YIKES! That's 21 KW. And, if rewired for single-phase, it will be over 100A.
