Author Topic: Connecting Inverters  (Read 3103 times)

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Seedler

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Connecting Inverters
« on: April 11, 2006, 10:51:02 AM »
Is it possible to parallel two inverts together?  I know Trace(Xantrex) do it to get higher power, but how easy is it and can it be done to any inverter.


I have a complete 2.5kW 240v ac, 24v dc inverter + The board of the exact same inverter, just need to make a box and add fans to it. Ok there is a slight problem with the board as well but I think I can fix this. I hope.


Anyway is it just a case of paralleling the ac outputs?


Dee.

« Last Edit: April 11, 2006, 10:51:02 AM by (unknown) »

geoffd

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Re: Connecting Inverters
« Reply #1 on: April 11, 2006, 05:31:20 AM »
Unfortunately not.  The phasing of the two inverters would need to be synchronized.


I have a higher end Outback Inverter and they have a specific feature that allows 2 or more inverters to be piggy backed to give either higher power, or 3 phase.  But one of the inverters becomes the master and controls the frequency sync of the others.


If yours does not have this feature then I would not try it, otherwise I expect it would be magic smoke time :(


Cheers

Geoff

« Last Edit: April 11, 2006, 05:31:20 AM by (unknown) »

Nando

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Re: Connecting Inverters
« Reply #2 on: April 11, 2006, 06:31:14 AM »
The inverters need to be designed to be paralleled.


Both inverters must have capability to receive data from one to the other and one becomes the master and the other the slave.


The paralleling for equal phase to add power (current) or in series to double the voltage - like 115 Vac to 230 Vac.


There are other parameters to consider, which or this message are not needed to be reported.


Nando

« Last Edit: April 11, 2006, 06:31:14 AM by (unknown) »

Opera House

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Re: Connecting Inverters
« Reply #3 on: April 11, 2006, 07:57:25 AM »
I'm not a fan of Bigger Is Better, I prefer distributed solutions.  Have you thought about putting them on seperate circuits?  That way you have redundancy and one inverter won't take out another if something happens.  I'd have a seperate inverter for each major current draw.  
« Last Edit: April 11, 2006, 07:57:25 AM by (unknown) »

Nando

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Re: Connecting Inverters
« Reply #4 on: April 11, 2006, 08:11:36 AM »
Sometimes bigger is needed and it may be the case here.


Sometimes a greater current capacity is needed in one circuit that may require additional power.


I normally recommend redundancy and the way to couple the sections when power source one fails -- this way energy is available though in reduced capacity instead of total sudden "death".


Nando

« Last Edit: April 11, 2006, 08:11:36 AM by (unknown) »

phil b

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Re: Connecting Inverters
« Reply #5 on: April 11, 2006, 12:17:41 PM »
« Last Edit: April 11, 2006, 12:17:41 PM by (unknown) »
Phil