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DC to AC Inverter Input range.

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Posted by hassoon3 on March 1, 2012, 10:06 pm
 
Here is a question: If we have a cell array providing DC, then we are using an
Inverter to get AC. The sunlight will come and go, hence, the DC input voltage
will rise and fall ...
I've been shopping for an Inverter on the internet, none of the inverters I
found have its "minimum input voltage" stated. Most of them says a 24V or 12V
inverter, but I am concerned about the minimum threshold for input voltage.

Any one has an idea?

Posted by Ron Rosenfeld on March 1, 2012, 11:22 pm
 
On Thu, 1 Mar 2012 14:06:43 -0800 (PST), hassoon3@gmail.com wrote:


Inverter to get AC. The sunlight will come and go, hence, the DC input voltage
will rise and fall ...


found have its "minimum input voltage" stated. Most of them says a 24V or 12V
inverter, but I am concerned about the minimum threshold for input voltage.


The battery bank should smooth out the DC fluctuations.  And most inverters have
(or should have, if they are designed for this kind of use) a low (and high)
voltage cutoff.  For my SW5548's, 48V inverter, the low battery cutoff is
programmable and I have it set to 44V; as is the high battery cutoff which I
have set to 66V.

Posted by you on April 3, 2012, 6:41 pm
 In article


That is what you get when you buy cheap Chinese Inverters.... cheap
Crap... If you had invested in OutBack gear you wouldn't have these
issues....

Posted by Mho on April 5, 2012, 7:17 pm
 Baloney!

Inverters may have larger tolerances but when there are clouds and no DC,
you get no AC either.

Try reading the OP's text and stop hijacking his thread.

--------

That is what you get when you buy cheap Chinese Inverters.... cheap
Crap... If you had invested in OutBack gear you wouldn't have these
issues....


Posted by ricky.gentle.usa on July 1, 2012, 7:05 am
 On Thursday, March 1, 2012 5:06:43 PM UTC-5, hass...@gmail.com wrote:

Inverter to get AC. The sunlight will come and go, hence, the DC input voltage
will rise and fall ...


found have its "minimum input voltage" stated. Most of them says a 24V or 12V
inverter, but I am concerned about the minimum threshold for input voltage.


http://www.facebook.com/pages/Solar-Wind-Projects-Home/268488803203806
I post other results plus mine. From my on experience is that it need at least 7
volts to turn on & make power from my grid tie inverters.

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