What problems is the system having?
Regarding your proposed 3P wiring solution, I don't know whether this
has been fixed recently, but Outbacks in 3P historically haven't
monitored the angle between phases. Under grid-connected operation it's
not a problem, but after they lose the grid connection, you'd be relying
on each inverter independently and consistently putting out exactly
216,000.00000 cycles of AC. This is only a problem with 208V 3P or 1P
loads on your protected load panel. Since you don't have those
currently, you'd be OK as long as you upsize the neutral and add a
placard stating that no 208V loads should be added.
DKC
On 2013/3/28 11:23, Bill Turberville wrote:
I know I saw a thread on this but I cannot find it in the archive. I
have inherited a customer that has a four inverter Outback system, 240V
1 Phase, on a 208Y120V 3 Phase 4 Wire system, that constantly has
problems. A 208V to 240V 1 phase transformer was installed feeding the
input, but the system still struggles. Will this system ever work
correctly as is, or does it need to be rewired for 3 phase and use the
third inverter as a spare. This would include a lot of work rewiring
the output panel. Any ideas?
W.C. (Bill) Turberville P.E.
President
ECE Solar
Electrical Contracting Enterprises LLC
3080 Stage Post Road Suite 107
Bartlett, TN 38133
901-348-9230 ext 101 phone
901-348-2192 fax
901-289-6346 cell
billt...@ece-llc.com <mailto:billt...@ece-llc.com>
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