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Can y change the voltage from 110 to 120 upgrade in the inverter
You may want to add a bit more detail to your question so that someone can more easily help answer your question.
What size and version of inverter are you asking about?
I would assume this is a split phase inverter (L1-110v-N-110V-L2) and you are asking how to adjust the output voltage? Once you clarify what inverter you have, I am sure someone will be able to answer your question.
If you are asking how to get both L1-N and N-L2 to both be the same voltage on a power jack inverter, that answer is more difficult as it may require adding turns to whatever transformer leg is lowest and testing with a variac until both sides are equal.
can you use 24volt dc terroid with three wire coming out of it its also supposedly rated 20/25k watts on a 48volt mainboard powerjack
If I understand your question correctly, the answer is NO.
Technically, if you put a "24v" transformer in a "48v" inverter, it WILL run...at least initially. But any sort of surge load (or significant load) will result in blowing all the FETs. Been there, done that at least 3 times. (First 2 times trying to run a 48v inverter at 65vDC...third time trying to run a 24v inverter at 40vDC.)
The transformer ratio needs to be at least somewhat matched to the nominal battery voltage--otherwise it's not going to work well.
Been there, done that at least 3 times. (First 2 times trying to run a 48v inverter at 65vDC...third time trying to run a 24v inverter at 40vDC.)
Good to know that the powerjack 48v inverter will blow up at 65v . The highest I have my 48 v powerjack is 64 volts and run good but I shut it down when the FETs measure 135 degree F. and never at 65 volts DC .
Been there, done that at least 3 times. (First 2 times trying to run a 48v inverter at 65vDC...third time trying to run a 24v inverter at 40vDC.)
Worth noting that the 48v inverters blowing up at 65-66v were the older "long mainboard" style, not the current design with 2 smaller mainboards. These blowups were caused by bad FET drive signals / crossstalk caused by poor design and FET drive.
It is our experience with GS testing that the long mainboard is more of a liability than anything else--it will melt solder off the FETs at ~9kw due to poor board layout.
That to say that the newer design might be able to handle higher voltage / power than the older design. Have not tested it though.