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powerjack 24-volt 15000W lfsp inverter new 5-14-2021 manufacture


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the reason i put up at a better working level is because it is better on the back than having to bend over stoop over to do the connections. one would think it is only done once; but as you arrange and reorganize and expand your sytem....>>>> locations change>>>> disconnect / reconnect etc...

i put 4 foot long 4/0 crimped and shrink wrapped cables so i could more readily hook to other battery configurations as i get them assembled. i used red 4/0 and black 4/0 for easy color coding.

right now i dont have the class t fuse on this one but it is in the plan. the inverter has circuit breakers built in; but i do not know that will be sufficient or not.

i consider the 400 amp class t fuse to be the catastrophe fuse... just in case. i also have some 300 amp class t fuse i could put inline. 

the big very expensive dc capable circuit breakers would be convenient but some say when tested they are not always as good as they are hyped up to be for the dc side of things. 

there is a youtube guy who goes by lithium solar who talks  about correct fuses for dc. 

lots of snake oil saespeople out there so reasearch is a must. 😎

hopefully in a few days i can get more assembled on the charge side of the battery. this one (15000 watt lf psw sp power jack 24-volt inverter) is not yet hooked to the solar panels; but the other 2 inverters are running 24/7 on solar pv generated electricity ( the 6000 and 8000 wat 24volt powerjack lf  psw ps inverters).

 

 

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there is a youtube guy who goes by lithium solar who talks  about correct fuses for dc

Yes  I  watch  youtube  all  the time .  Last week  I   change  some of my 300 amp  dc  breaker because they  trip  for no reason  .  I try t fuse 400 amps and   none trip   when nothing is shorted  and  works ok .    

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  • 2 weeks later...

i have been making coffee every morning with this 15k 24volt lf sp psw powerjack inverter hooked up to a 24 volt lifepo4 battery. will run heavier loads later. the fan on the transformer box comes on as well as the 2 fans in the control box. and when i shut the inverter down the fans continue to run until it cools down. 

so far all seems to function ok!!!!

unfortunately my internet went down for 10 days so taking awhile to add updates.

internet wireless in country with ne provider today.

many circuit breakers are not what they claim. class t fuses have been working great for me for the past 10 months without issue.

more later 😎

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  • 4 weeks later...

iI do note that the stainless Steel powerbox which has the control boards and all the mosfets and two fans was blowing out cool air and the stainless steel box which houses the large terroidal transformer was blowing out warmer air. so to me that indicates it was a good move by powerjack to separate the transformer from the control boads to aid with the heat disipation. I still dont have the thors notebook with the two lcd screens mounted at eye level but will in time so I can monitor what the lcd screens are indicating. right now just running a coffee pot and some other small loads. more later I am in the proces of assembling a 32 cell 24volt Lishen 272 Ah battery bank. I have 8 groups of 4 272Ah cells in parallel and I am awaiting the 2/0 copper cable and .25 inch tinned copper lugs to make the parallel to series battery interconnects. It will be 272 x4 = 1088 Ah potential at 24 volt nominal so 3.2 volts  x 32 272Ah cells  = 27852.8 Wh capacity @ 1088 Ah potential. likely will only use 200 amps or less ---- that is the goal, but will have more reserve capacity. 3.2volts x 8cells = 25.6 nominal volts but that is the low end, it will likely be at 3.4 to 3.55 so more likely (3.4x 8= 27.2 to 3.55x8 = 28.4 volts) 27.2 to 28.4 volts. my Electrodacus SBMS0 stops charging from the solar panel array at 3.55 volts. the Electrodacus SBMS0 controlls the Electrodacus DSSR20's which are the solar charge controllers. the Electrodacus SBMS0 balances the cells when they are charging. 😎

 

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I ordered a Delta 24volt 5500rpm 120mm fan yesterday from aliexpress for $13.57 including shipping and tax. I think I will add this onto the transformer box to aid the cooling a bit. 120*120*38; I think it is 1.2 amps. model number FFB1224 12038 24 v 2.2 5500 RPM from SENSDA Electronics Store.  I also ordered 50 pieces of 25mm long M6 set screws (grub Screws) for the 32 cell lishen battery build these were only 3.70 for 50 pieces including shipping. this will make it easier to attach the sense wires and lugs on the Lishen 32 cell battery build from another vendor on Aliexpress. time to make some coffee! using the solar power saved in the LipO4 batttery running the 24volt powerjack 15000 watt psw sp lf inverter. more later.

Edited by pilgrimvalley
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Have you been able to measure the no-load power consumption of the inverter?

One "FYI" is that pretty much all commercially available fans are rated to a surprisingly low voltage.  A Delta FFB1224VHE (151CFM) fan is usually rated for 14.0-26.4vDC input.   https://www.delta-fan.com/Download/Spec/FFB1224VHE-R00.pdf

While the fans WILL run at voltages beyond their rating, I HAVE had a FFB1248EHE Delta 48v fan (rated to 53v) fail after less than a year at 56.0-56.5v.  Replaced it, and the other identical fans are still running today--but still!  https://www.delta-fan.com/Download/Spec/FFB1248EHE-F00.pdf

 

This is why GS inverters have custom-designed fans.  24v inverters have fans rated for 20-40vDC input.  The other fans we have are rated 38-75vDC input.

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Here is a pic of the $5.00 drill press garage sale buy and my $60.00 hydraulic crimper.

i have used the 16 ton hydraulic crimper for many large gauge cable but did buy a smaller crimper for some small gauge wire hydraulic crimping also.

the old man selling the drill press vise already had it mounted on a board with a couple wood runners to mount on his drill press, so it makes a good stable base as well. Never have enough hands when making up cables it seems.

20210826_121419.jpg

Edited by pilgrimvalley
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I have not seen a spec sheet on the 12038 delta 24 volt fan yet but at 5500 RPM it should move some air. hope it lasts the rated 50,000 hours before failure!. probably have to do some more research on it. it likely wont be here for another 30 to 60 days. Aliexpress China shipping is often slow but somethimes things arrive in 10-20 days. I could hook up a buck converter on it to adjust input voltage a bit. I will try a few things when it arrives. thanks for your input.

today the 2/0 cable shoud be here, so I may get to start making the cable interconnects for the 32 cell LiFePO4 battery (32 272 Ah cells in a 4P8S configuration).😎

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2 hours ago, Sid Genetry Solar said:

Have you been able to measure the no-load power consumption of the inverter?

One "FYI" is that pretty much all commercially available fans are rated to a surprisingly low voltage.  A Delta FFB1224VHE (151CFM) fan is usually rated for 14.0-26.4vDC input.   https://www.delta-fan.com/Download/Spec/FFB1224VHE-R00.pdf

While the fans WILL run at voltages beyond their rating, I HAVE had a FFB1248EHE Delta 48v fan (rated to 53v) fail after less than a year at 56.0-56.5v.  Replaced it, and the other identical fans are still running today--but still!  https://www.delta-fan.com/Download/Spec/FFB1248EHE-F00.pdf

 

This is why GS inverters have custom-designed fans.  24v inverters have fans rated for 20-40vDC input.  The other fans we have are rated 38-75vDC input.

when the inverter is turned off the clamp meter reads from .19 to .21 amps; when the inverter was turned on the tacklife digital clamp meter reads 2.1 to 2.13 amps with the coffee pot plugged in to the inverter (but the coffee pot is not turned on but it powers up the digital lcd screen on the Hamilton Beach coffee pot). I still have not observed the readings on Thor's Note Book with the 2 lcd screens. I will have to get it mounted up at eye level someplace.

the tacklife digital multimeter clamp meter is clamped accross the negative 4/0 cable between the inverter and the 24 volt prebuilt 5 kwh battery from tech direct. this is for testing while i assemble the larger 32 cell Lishen 272Ah battery.

is the above what you are asking about the no-load power consumption? 

on the positive side it reads 1.75 negative amps between the lifepo4 battery and the inverter. so to me that indicates i should be taking the measurement on the negative cable as that is the flow direction of the electrons???

the voltage meter on the prebuilt 24-volt tech direct battery reads 26.7 volts at the moment but i do not know or believe that is totally accurate. 

the tacklife meter is an ac/dc clamp meter auto range 4000 counts. 

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43 minutes ago, Sid Genetry Solar said:

FFB1224SHE fan datasheet: https://www.delta-fan.com/Download/Spec/FFB1224SHE.pdf

2A no load...not bad I have to say.  Not sure I understand the 0.2A when turned off...that sounds like a DC clamp meter that isn't properly zeroed.  If the cooling fans aren't running, the off current should be closer to 0.02A

it does have a zero button i will try to zero it again

when i zero the clamp meter it says 1.96 amps. 

when i unplug the coffee pot it reads 1.88 amps so the lcd screen on the coffee pot burns .08 amps when plugged in but no yet turned on.

s

Edited by pilgrimvalley
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when the inverter is turned off it still draws.07 to .09 amps. there are no fans running but this is probably the no load consumption with the inverter attached to the LIFePO4 battry but turned off.

when the inverter is turned on it reads 1.89 to 1.91 amps using the tacklife clamp on meter on the negative 4/0 copper cable between the inverter and the LiFePO4 tech direct pre-built battery. there is nothing attached at all on the load side but you can hear the terroidal transformer humming...... 

the tech direct 5 kwh battery has a 130 amp built-in BMS and circuit breaker. so right now i do not have a class T fuse installed; but will have when i hook it up to the 32 cell Lishen battetry i am assembling.

2 pics coming. dont mind the mess!

20210826_151921.jpg

20210826_151913.jpg

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wonder what is the purpose of the analog volt meter. it does not read 24 volt or 26 volt or anyhting that matches up to the LiFePO4 battery i have hooked to it. my lifepo4 battery is at 26.7 volts, but this analog volt meter  on the transformer box only reads about 18!!

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33 minutes ago, pilgrimvalley said:

on ebay they now have some strange inverters with 4 wires to the output side AMG version. wonder what that is about?

26000 watt one and a couple other sizes?

Might be taking a playbook from the GS transformer winding spec and such for that, haha (note the comments about "Also the same coil we put more wires on the transformer about 1.5 times than before")...

With the "AMG" setup, PJ is making an inverter that you can theoretically reconfigure between 120v single phase and 240v split phase output by rewiring a couple of jumpers on the 4 position connector.  In essence, you have 2 120v secondaries of the transformer that can be wired in parallel for single-phase, and put in series for split-phase.  Actually not a bad idea.

The catch is that any and all voltage regulation takes place at 120v (which actually is quite common in PJ inverters); if you load down the "240v output", the inverter will not correct for the sag on the unregulated secondary.  If that's not a problem, these inverters might do quite well for you.

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some strange inverters with 4 wires to the output side AMG version

Wiring  option A  for 120vac  only  L1  N 1  and  L2  N2  but no 240vac  and can not  L1  N  L2   or bad  thing will happen . Wiring  option B  for  240vac  direct  wiring to 240vac inductive load   such as  air compressor  or well pump .   Can also  be  wire  L1  N  L2   for pure split phase  240vac  but  make sure  load on L1 and L2  are  the same  or bad thing  will happen Bad  is like FET  blew up  and the main board  catch on fire .   I   think  your ASL6.5  transformer  is balance  L1  is 120vac and  L2  is   120vac  so wiring  L1  N  l2  will work  ok .   Many  powerjack transformer  is not  balance  like ASL9.0  where  L1  is  115vac  and L2  is 105vac  so I  wire  direct   L1 and L2   for 240vac   and  has to be careful wiring  L1  N  L2  and  watch  the load  .      .    

 

 

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lots of inflated abilities in the amg version possibly/likely. if they did 50 percent of advertised without burning up that would be good. 

i just thought it was interesting but a bit confusing at the same time.

it seems they are selling or at least offering for sale less of their older style inverters. but they get more confusing in their wiring.

it is interesting but these larger inverters with heavier transformers put out a lot of heat so i think the separate transformer box with its own fan is a plus as well as the 2 fans for the separate control box that the 15000 watt lf sp psw 24-volt 3 box inverter with the asl 6.5 transformer may have been a good move. not much warranty as i will never ship it to be repaired if necessary --- too heavy.

had a thunderstorm with lots of wind saturday night >>>  not an issue with off-grid but some grid tie stuff lost power. 

slow but sure i will get more off-grid up and running.

waiting on some heat shrink for the 28 2/0 battery interconnects at the moment ....maybe here wednesday! 😎

thanks for all the comments!

 

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