| Author |
Message |
Larry Mackey
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 26, 2006 - 8:49 am: | |
Can you parallel wire two Xantrex inverters?Beware this could be a baited question!!
Larry |
Richard Bowyer (Drivingmisslazy)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 26, 2006 - 12:19 pm: | |
What model number? Are they specifically designed to be paralleled? Check your owners manual first.
Richard
(Message edited by drivingmisslazy on April 26, 2006) |
Arnold J Molloy (Ayjay)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 26, 2006 - 6:52 pm: | |
If the inverter models, regardless of manufacturer, Xantrex or any other make, are designed to be piggy-backed there should be no problem.
"BUT" They must be capable of using a single time base in order to synchronize the outputs.
AyJay |
motorcoach1
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 26, 2006 - 8:17 pm: | |
the only thing i could think of is the frequency shift may make them run into a phase shift quark that one might over run the other on the shift to realign the out put voltages. if this happens enough times the units may go bad due to high voltages degradation. |
marc bourget
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 3:28 am: | |
I'm curious, never having seen its use, is the phrase "phase shift quark" one of your own creation? |
truthhunter@shaw.ca
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 7:53 am: | |
I am guessing, not like quark as in those theoretical behaviors of energy transfer/ reaction in theoretical physic , but I think the phrase refers to Quark -as in "anomality or burp in the function" were do those words get invented anywhoooooooooooooooo; by the mother of invention-necessity??????????? Surely there are no grammar engineers out there with the professional recognition as word inventors are there? Are we laymen confined to surrounding are word contraptions in "quotation marks"until the approved and certified by mainstream grammar bureaucrats in some office tower some were????? Inquiring minds need to know??? Where can I challenge the test and get my degree for this as my communication skill are far to stifled and my old computers can't type pictures very efficiently!
And yes before anyone suggest attracting a proof reader or "grammar nazi" to my team/department, we have been trying since Dec. but on this budget it is not very enticing. |
John MC9
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 7:56 am: | |
quark = quirk = burp = "unstable phasing situation"?
(just phishing for an answer here?)
Doing a Google produces info both for, and against using two
inverters (or more) in that manner. Confusing, to say the least!
(Where's Gary when we need him?) |
Crane
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 8:35 am: | |
Hmmm is that like a brain FART?
The only inverters that can be tied together are the ones that are made to be tied. They automatically stay in sync with each other.
The inverters that are used for power at the old windmill sights immediately come to mind, these would be Xantrex units with the tie feature.
IT WILL NOT WORK if you just buy two cheap inverters and connect them together.
One way aaround this is to set up half the circuits on one inverter and the other half of the circuits on another inverter.
Sort of the same, only not.
Crane |
Richard Bowyer (Drivingmisslazy)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 8:37 am: | |
I can positively assure that you can not parallel two AC devices of any kind, whether rotary or solid state, unless they are specifically designed for parallel operation. That is why I suggested in my first post that he check the owners manual.
In order to parallel two units they must be designed, at a minimum, to share both KW and kva as well as maintain frequency synchronization and output voltage regulation.
It is really much harder to parallel solid state units than it is rotary units. FWIW
Richard |
Larry Mackey
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 10:35 am: | |
Thanks for the great discussion and comments on paralleling inverters.Wow,you guys are right on the money!
Like I said in my original post " beware this could be a baited question".I actually have two Xantrex 2012s (three stage/Turocharged[have cooling fans]units tied together in parallel with the required hardware.One is the master and the other the slave.
I did this up-grade because the units were free(my buddy with the Prevost was having trouble with the units and took it to an electrical shop where they replaced them with a single 30000 watt unit) and because I wanted to operate one roof AC unit.So far so good, next time I plan to try two 1350 BTU roof units[on low].
Field tested these units separately before tying them in parallel.Would I be over driving these units with two ACs running at the same time??? |
Richard Bowyer (Drivingmisslazy)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 11:32 am: | |
Depends. What is the individual rating of the units? what is the overload capability? what is the running load of the A/C's? What is the starting current of the A/C's?
My suggestion is quit asking questions and just try it. If you overload them they will trip off. That is the only sure method to determine if they meet your needs or not.
Richard |
t gojenola
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 1:33 pm: | |
Nah - wire them in series, the first one making 110 off the batteries and feeding it into the second one. The second one can use its wizardry to charge the batteries. There you have it - a new generation perpetual power system free of quarks and asynchronous anomalies!
tg |
Jim (Skyslayer)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 2:45 pm: | |
I run two inverters no problem but they are not tied together on the AC side. Two AC separate circuits are required you must make sure they stay separate along with the neutral it works fine I am a full timer and set the system up two years ago. I have pictures on my web site.
The ExtremeFamily |
Jim (Skyslayer)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 3:01 pm: | |
Oh and that was two 2000 watt inverters one newer Xantrex and one older heart that are not meant to run together and when they charge I can push 200 amps but usually don’t |
motorcoach1
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 6:06 pm: | |
OK trick answer- Quark mmmmmmm Cranes close on some accounts. on AC 's whats the LRA( locked rotor amps) on two units starting at the same time - Warp speed scotty- and add up the out put of the inverters wattage and convert to amps, it will work on one unit and a power share device they sell at campers world and that won't let 2 units start at the same time |
motorcoach1
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 27, 2006 - 7:53 pm: | |
oh by the way was that a bated answer on " I'll try them on low " the compressors always run the same ...just the fan runs high and low. LRA stay the same |
niles steckbauer (Niles500)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 28, 2006 - 3:28 am: | |
Larry - don't get too high on the success - true "twin" inverters are not masters/slaves - I have the "true" master/slave inverter system and they are "not" identical - one IS a master and one IS a slave - nothing identical about them - maybe you misrepesented them or maybe they are designed to be linked in tandem - but the logic circuits must be designed to work as such - be careful not to let the smoke out - HTH - |
Larry Mackey
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 28, 2006 - 8:42 am: | |
Niles you are correct, my choice of "master" and "slave" units was not only politically incorrect but technically incorrect.I was trying to use my tired old memory to recall what the tech support guy at Xantrex told me.
The best I remember was that the exterior wiring configuration to connect them in parallel resulted in one inverter controlling both.
With the group`s comments I think I will just run the front unit(one of three) on HIGH!This front unit is dedicated for the driver`s seat only and the wife and dog will have to sit on my lap.Passengers will have to rotate with the wife but the dog stays!! |
motorcoach1
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 28, 2006 - 5:39 pm: | |
lucky dog :>) |