powerjack power inverter 26,000 watt AMG version 48 volt PSW LF 13,000 watt continuous at 240 volts or 120 volts etc. – Page 14 – Power Jack Inverters

pilgrimvalley

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Topic starter April 21, 2022 6:14 PM

Features of Power Frequency Sine Wave Inverter

The inverter has strong current starting ability, sufficient output power, strong load capacity, no interference, no electromagnetic radiation in inverters work, good stability in inverters work, not easy to damage, and low temperature rise in work. This type of inverter is the ideal power supply for all enthusiasts.

the Aliexpress advertisement looks like they have higher design praise for a 60volt battery and a 15000 watt inverter board...

time to feed the critters again....

later, i may send them a message out of curiosity....>>>> to the Aliexpress seller

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dickson

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April 21, 2022 6:22 PM

just curious at this time about it but not buying one right now.... the Aliexpress inverter board.... no mention of an eg8010 part that i can see.

You are right that there is no mention of EG8010 . ESG002 and EG8010 is the blue board in my pictures .

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dickson

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April 21, 2022 6:36 PM

the Aliexpress advertisement looks like they have higher design praise for a 60volt battery and a 15000 watt inverter board

I have not seen on youtube a real useful working EG8010 inverter but someone comment on youtube that it works to run a portable 120v window AC . The old EGS002 board do blow up the FETs on youtube review and can not run load more than 5000 watts . The only way to solve overheating is with the design of the transformer core and wire size . Put the transformer in mineral oil like someone in this forum and youtube also work .

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dickson

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April 21, 2022 7:07 PM

1.41421356237 is the square root of 2

so 32 volt divided by 1.41421356237 = 22.62741699801904

I am not sure that is the formula . If 48v DC input then primary will be 33vac which is close to 32vac primary of the GS inverter . PJ at 36vac is too high for your lithium pho iron battery but is better for my 60v DC lithium ion .

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pilgrimvalley

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Topic starter April 21, 2022 9:45 PM

On 4/20/2022 at 5:13 PM, Sid Genetry Solar said:

Transformer overheating is due to inadequately sized wire on the core, not core saturation. Resistance * current = heat...so the less the transformer coil resistance, the less heat generated at the same current.

FETs will only go into melt-down mode if they're being driven poorly.

what is the transformer wire diameter and number of enameled aluminum wires on the gs6 and the new in the works gs12 inverter???

...is PowerJack selling you the same transformer as in the 30000 watt inverter??? likely not that big as that ss box transformer alone weighs 146.96 pounds, and the control board box weigh another 44.54 pounds....

the transformer in the gs6 is a lot smaller than the one in the PowerJack 26000 AMG version by looking at sean's video from October 2020. it looks about the size of the transformer in the Powerjack AMG 20000watt one, but hard to say about that...

the case that sean shows for the gs12k on the YouTube video looks to be about the same physical size as the PowerJack AMG 26000 watt 48-volt LF PSW SP inverter.... but it has 2 fans in the end and none on top of its transformer...

I also note on his video that the case does not denote the DC voltage laser cut out that PowerJack is doing....that would be a plus to your case design i think....

i will try to open up and measure the enamel aluminum wire windings when i get a chance....of the primary side....

in the october 2020 video he (sean) was talking about the gs12 inverter while showing the design elements of the gs6 inverter....

12k would be an inverter that would run most house loads. if they are balanced on a split phase system....maybe not everything but a lot of things....

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pilgrimvalley

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Topic starter April 22, 2022 7:53 AM

PowerJack 26000 watt LF PSW SP AMG version inverter a 93 pound beast....

once again I opened up the 26000 watt LF PSW SP AMG version inverter to measure the transformer wire diameter:

I found the secondary transformer wires are 2.1mm in diameter and there are 4 of those inside of the white insulating sheath going to the bottom of the breaker of what is labeled as L2 fuse on the laser cut out on the front of the case..... this is the one connection which is presently making it not usable....

the breaker must have a push in point to allow the insertion of the four 2.1 mm diameter wires into it. did not have time to take the breaker out or remove the rest of the front panel another 8 10mm bolts. the breaker is attached by 2 small long screws and nuts as it is fastened to the front panel ( it is a din rail type mounting that they simply use a flat piece with the long machine screws and nut to hold it in place.... an easy way for Genetry inverters to add the breakers...)

the end of the four 2.1 mm diameter wires had a piece of black heat shrink that was likely not glue lined and maybe not heat shrinked enough, but at any rate i was able to slide the small piece of heat shrink tubing off of the four 2.1mm diameter secondary (high voltage) wire with my hand to expose and count the wires. then the digital caliper measured their diameter... 2.1 mm each strand 4 inside each of the white protective sheath (probably also insulates them a bit more more)

there are 4 sets of these coming out of the transformer the other 3 sets attach to the board that is vertically mounted on the front of the inverter but they all have a cable lug termination that is bolted to that board on the front vertical panel...located directly in front of the large toroidal transformer

the larger primary wires of the transformer were 2.29mm diameter but i was not able to count them (as to the number of strands or individual wires in each) but did note they are wrapped around a smaller ferrite ring about 2 times each or so??/ not sure.

the end of the secondary wire had the enamel coating scraped off where it inserted into the breaker and it seems the wires are aluminum ..... is this the same as copper clad aluminum or is the enamel coating only an insulator for the aluminum wire that these transformers are wound with???

copper clad aluminum is not the same as this enameled aluminum wire used to wind these transformers.....Correct???

i feel like MacGyver!

time to go feed the bottle lambs and get back to family stuff...

more later Cheers all and thanks for any and all replies/information

as i am still a neophyte in the inverter dis-assembly procedures.

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Sid Genetry Solar

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April 22, 2022 11:27 AM

Posted by: @pilgrimvalley

↑
is this the same as copper clad aluminum or is the enamel coating only an insulator for the aluminum wire that these transformers are wound with???

Transformers are not wound with CCA; the wire is enameled aluminum.

Posted by: @pilgrimvalley

↑
2.1 mm each strand 4 inside each of the white protective sheath (probably also insulates them a bit more more)

So 2mm wire x4 on at least one secondary line...did you feel the "L1" line to see if it also has x4 strands? PJ often mismatches the secondary thicknesses...

Posted by: @pilgrimvalley

↑
I also note on his video that the case does not denote the DC voltage laser cut out that PowerJack is doing....that would be a plus to your case design i think....

We are purposely not doing this. The more unique our design is, the better off we will be.

Posted by: @pilgrimvalley

↑
1.41421356237 is the square root of 2

No, that's not how it works.

Divide the BATTERY DC VOLTAGE by the square root of 2...to determine the maximum non-saturated AC output voltage possible. 55vDC / 1.414 = 38.89vAC--and obviously, any losses in the transformer will need to increase this number. If the design spec is for a 48v nominal system, we find that 48 / 1.414 = 33.9vAC. Almost no headroom even with a 32vAC transformer primary.

No "inverter board" will be able to provide 120v or 240v output from a 48v battery WITHOUT either a boost circuit (i.e. complete high-frequency inverter) or an external step-up transformer (low-frequency).

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pilgrimvalley

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Topic starter April 22, 2022 4:45 PM

PowerJack 26000 watt LF SP PSW AMG version inverter:

48 volt nominal with the LiFePO4 is 48/16=3 volts per cell....

my LiFePo4 cells are normally at about 3.4 per cell or more (they just about always arrive pre-assembly / pre-charge from the factory at 3.29 volts) 3.29 x 16 = 52.64 volts with never being charged....

so 3.4x16=54.4volts or more... so as you say not much head room.... trying to understand it more .... thanks

3.45 x 16 = 55.2 volts

and 3.55 x16 = 56.8 volts

3.55 is the 99 percent SOC for a LIFePO4 battery... but often hovering around 3.45 volts per cell during use..

thanks for the information///helps my neophyte comprehension a bit more....

the other 3 high voltage primary wire covered with the white sheathing are bolted to the board on the front... i may pull the top of again when the little ones are sleeping or at school next week...

hmmm hmmm,,, so much to do ....

today it went from freezing (ice in the livestock water to 80 degrees Fahrenheit and windy, but the sun is shining today... wind sucks though or should i say it blows!🤣🤣

hard to keep all weighted down in the wind...

thanks again...

for me the better placement of the inverter LCD screen would be on the front of the inverter.... mine are all shelf mounted and not wall mounted.... i can not even look at the top of the inverters where the LCD screen is located on one of them....you might look at that as an design upgrade also....(think/consider) just a thought for you....

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dickson

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April 22, 2022 6:20 PM

once again I opened up the 26000 watt LF PSW SP AMG version inverter to measure the transformer wire diameter:

Thank you for the photo of the mainboard . That is the tiny mini mainboard that only allow four 4 FETs mosboards and 2 capacitors per mainboard . Why would PJ put an old design tiny mainboard unless PJ know it can not do 5000 watts ?

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pilgrimvalley

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Topic starter April 22, 2022 7:06 PM

PowerJack 26000 watt LF PSW SP AMG version inverter:

they seem to keep changing them....some way or another...

the transformer size calling it an asl5-x for what ever that means??? but it is as big as the asl9 i think... but not sure on that... i would have to open up a 15000 watt older inverter to compare....

the new asl numbering scheme must not follow the same pattern once they add an "x" to it....

at any rate they claim it is a 13000 watt continuous but if it does 7000 that would work for me and just use 2 of them for 14000 watts when needed in the shop or in the 3 story solar addition....

I was into passive solar structures with lots of south facing glass in super-insulated buildings back in the 90's until 2005; so i also have a building like that waiting for solar pv also...it has 4 floors (3.5 floors actually) of south facing glass and is about 49 feet to the top south side....bought a 50' aerial lift as I became tired of scaffolding and ladders although still use ladders more than i like to.

i would tend to agree that 4 capacitors on each short board would have been better though...

thanks for all the replies! 😎

man the wind is still fierce today, but temp is better outside than freezing!!

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dickson

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April 22, 2022 7:27 PM

I was into passive solar structures with lots of south facing glass in super-insulated buildings back in the 90's until 2005; so i also have a building like that waiting for solar pv also...it has 4 floors (3.5 floors actually) of south facing glass and is about 49 feet to the top south side....bought a 50' aerial lift as I became tired of scaffolding and ladders although still use ladders more than i like to.

Installing solar pv on a 50 feet high roof is still dangerous with aerial lift . Safety harness is still needed and the wind is a danger .

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dickson

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April 22, 2022 10:22 PM

they seem to keep changing them....some way or another...

the transformer size calling it an asl5-x for what ever that means??? but it is as big as the asl9 i think... but not sure on that... i would have to open up a 15000 watt older inverter to compare....

The ASL5-x is the transformer for the AMG inverter which has 6 wires and is smaller than the ASL9.0 . My PJ 15kw has a ASL9.0 and a 10 inch diameter . I think your 15kw has a ASL6.5 transformer . Sean first GS 12kw prototype has a ASL9.0 core with SId wires spec according to Sean youtube but overheat so now a new GS 12kw transformer .

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dickson

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April 22, 2022 10:29 PM

at any rate they claim it is a 13000 watt continuous but if it does 7000 that would work for me and just use 2 of them for 14000 watts when needed

NO not possible but 2 of the 2 boxes 30000 watt PJ will do 7000 watts each . It original has a massive ASL11.0 five wires transformer and a rev 10.3 control board .

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pilgrimvalley

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Topic starter April 23, 2022 5:20 AM

PowerJack 26000 watt LF PSW SP AMG version does have the 2 pads on top of the transformer to insulate and bolt it down to the case. those could be removed to aid cooling one it is placed in final position (always changing).

side note: those 30000Watt 2 box stainless steel PowerJack versions are expensive...but i do like the 2 box version as to the form factor and think they would be ripe for changing out the mainboards and other components more readily....i also really like the 4 support feet design on the 2 box units of the 30000 watt inverters.... never going to mount them on the wall, they will always be a shelf mount or bench mount set up.....never going to hook any of them up to the grid as to me that defeats the whole purpose of going off-grid....never going to hook them up to a noisy generator(gas or electric) .... again i dis-like the noise and the pollution... but have to use petrol generators sometimes on jobsites....dislike them a bunch though!!! but transporting generator fuel to remote sites is another pain in the A**...

i have a 3 stainless steel box 15000 watt PowerJack that is running on 24-volt system: the transformer is in one box, the control boards in a second box, and the Thors Note Book dual LCD screens in the 3rd ss box.... I like its ability to place the LCD screens at whatever viewing position I choose,,, but in all reality I never look at that screen and only monitor the screen on the BMS periodically when I go into the off-grid solar power shed...

I also have the older 48-volt big black box 15,000 watt inverter that i could pop the lid on to see what size transformer is in it....never actually looked at that aspect on them....

the thought of putting the transformer in a mineral oil bath to cool it off is an interesting thought!

end up with a real Frankenstein inverter...🤣🤣

there were comments in the directions on Aliexpress about paralleling 2 toroidal transformers but that is out of my league of tinkering at this time.... i think that was where they were writing about getting the correct voltage transformer to match up to the 11 capacitor inverter boards... not sure ,,, i would have to go find it again on the Aliexpress site.... but it seems that 60 volt battery may be better in some respects for the headroom on the PowerJack inverter.... as in being explained to me...still learning and trying to understand the inverter's pitfalls,,,,

thanks all,,,😎

maybe....better stop now!!!! wind has been howling since yesterday evening and 2 more baby hair sheep arrived....7pm last night! at least in not in the below zero snow and wind!

just trying to keep the wind from killing my ears ,,, have to wear a stocking hat in the wind...it would be gorgeous weather if the wind would quit!! hi ho hi ho out in the wind I go....😒😢

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dickson

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April 23, 2022 8:56 AM

.never going to hook any of them up to the grid as to me that defeats the whole purpose of going off-grid.

I was thinking that you do not have any connection to any utility company but was only using generators until now . Is that correct ? Then you can drive an 8 feet copper rod into the ground and use as a system ground with your 2 wires system . If you are connected to the grid then there will be a 8 feet copper rod at the service entrance already .

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