Re: [RE-wrenches] Three-Phase Generator feeding Series/Parallel Quad Stack

2008-07-29 Thread Darryl Thayer
HI all FYI I am rushed with problems, but I hope this helps. My 12 inverter Outback system supports 3 phase 120/208 volt, But it can not do standalone operation on any more than 2 inverters legally. (therefor no Stand alone 3 phase with my system) In my case Outback demonstrated 3 phase stan

[RE-wrenches] AC combiner panels [was Gray code area]

2008-07-29 Thread bbassett
Bill, How does this effect using an AC panel to combine inverter outputs? It sounds like so long as there are no load breakers it can be used up to it's bus rating with inverter breakers. Or is what you are talking about only applicable to the tie in point or service entrances? I don't find the co

Re: [RE-wrenches] Three-Phase Generator feeding Series/Parallel Quad Stack

2008-07-29 Thread Phil Undercuffler
William, I believe you're right about the 180 degree / 120 degree differential. This is similar to the condition that fried the input relays on a handful of XW inverters which were connected to 120/208 three phase inputs. In fact, Xantrex published a technical bulletin about the issue, availabl

Re: [RE-wrenches] Gray code area

2008-07-29 Thread William Miller
Friends: There are two issues brought up here: Designation of a load center as a "grid-tie combiner" and point of connection. Grid-tie combiner: The concept is to designate a load center as a "grid-tie combiner" and not allow any load breakers to be installed. While I completely agree wit

Re: [RE-wrenches] Three-Phase Generator feeding Series/Parallel Quad Stack

2008-07-29 Thread William Miller
Nick: Here's my best guess: The X240 is configured to work with power legs with 180 degree phase differential. A 3 phase source has 120 degree phase differential. This 120 degree phase differential shows as some degree of direct short to the source. Solution: I would forego the X240 and

[RE-wrenches] Three-Phase Generator feeding Series/Parallel Quad Stack

2008-07-29 Thread offgridn
Hello good folks in the RE world! An off grid customer of mine has a VFX Quad Stack wired exactrly like page 20 in the FX manual, including the X-240 balancing transformerconnected to the panel output legs. He has been feeding it with two legs of a three-phase diesel generator. IS THIS A COMPLETE