I'd probably put in two transfer switches. One at the main panel at
each building.
Then run the output from the generator to each of the transfer switches.
The only issue is if the power is out at one building, but not the
other. That's probably a utility issue, but no harm either way. The
whole point of the transfer switch is to avoid the hazard of
back-feeding the utility from the generator.
bp
On 10/26/2014 2:17 PM, George Skorup (Cyber Broadcasting) via Af wrote:
So I have a unique situation at our office. We're looking at a Generac
QuietSource 22 or 30kW running on NG. I'm not dead set on that, but
those are very nice and quiet 1800RPM. And the problem is, our
building is really old and is split in half with two separate 240
services coming in. And I do have an old empty 1-1/4" conduit between
the two utility closets. The two services is actually nice because a
lot of times, one side will have power when the other doesn't. One
comes from the north, the other from the south.
There's no way we can rewire and combine everything into one service
feed. I'm trying to wrap my mind around how to do something like two
auto-transfer switches on one generator. I have critical stuff to run
on both sides. Probably need a qualified electrician or engineer, but
I thought I'd ask here for suggestions before we go down that road and
pay someone to come up with something that I most likely wouldn't like.
