wrote in message
...
I have read here that some folks use more than one phase converter in
their shops and just turn on more converters as the load increases.
Are these rotary converters connected in parallel? If so, is there a
concern about them being in phase which each other? Does this just
happen automatically? What about voltage differences between the
converters? I'm asking because it seems that with both machines
running at top speed there is a voltage drop which causes one machine
to alarm out. The spindle drive senses a too low voltage condition and
stops the machine.
Thanks,


Basically I use a second idler to feed a second row of machines-it has it's
own mains breaker and the only time it is truly "connected" to all three
legs of the first converter is through a large single pole contactor when it
is initially being started up.

Tomorrow I'll look for the ladder I made when I built the thing, pretty sure
it popped up in one of my desk drawers a couple months ago and so I put it
into the contactor enclosure.