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PowerJack 30000Watt 48volt LF SP PSW 2 box inverter 2021 model 189 pounds

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pilgrimvalley
(@pilgrimvalley)
Prominent Member
Joined: 4 years ago
Posts: 826
Topic starter  

a 12k inverter at 48 volts pulls a lot of amps and heat through the battery cables.

a 15k would pull even more amps and require a much larger battery bank to run on cloudy days or at night...

12000 divided by 48 volts = 250 amps if the inverter was 100 percent efficient... which none are

at 90 percent efficient which is a reasonable efficiency to expect/hope for then the same 12000 watt inverter would need 13,333.33 watt draw from the 48 volt nominal LiFePO4 battery and the amp draw would be 277 amp draw and need a 400 amp class T fuse...and 4/0 copper cable between the battery and inverter....

four gs12 inverters at their max continuous advertised load would need 277 x 4 or 1108 amps from the battery....

real world efficiencies usually are less due to resistance in the connections etc....

they need to show amps being pulled from the battery bank at the same time various load levels are being energized from the inverters....that would be good to see real time in their YouTube videos!!!!

otherwise all hype...????

my BMS shows how many amps are pulled from the battery, I  just need to measure the amps going out of the inverters some way on the AC lines (accurately)....

still need to study up on the transformers a bit more....

 

 

 

 

 

 

 

 

 

 

 

 

 

po4battery


   
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(@dickson)
Noble Member
Joined: 4 years ago
Posts: 1058
 

the s.......   power can connect 9 of the 6000 watt ones together but they cost about $1500 each....              posted  july 13    there  are 240 vac inverter that can parallel  2  for  3000 dollars  .    San Tan do not answer Sean because they now sell  similar  products .          Parallel 9 inverters  is 54000 watts  .     Where to get that big of a cable ?      

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pilgrimvalley
(@pilgrimvalley)
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Joined: 4 years ago
Posts: 826
Topic starter  

San Tan solar is a lot bigger company with 2 large selling locations.... I bought 120 solar panel through them (((2pallets of 20 each at a time>>>cheap))) on eBay the freight was about $400 for 2 pallets (40 pv panels) maybe more today...they do not need the extra expense of an affiliate and are promoted by themselves...

they (San Tan Solar) do not have to have their potential customer prepay before the product is manufactured...no need to worry about powerjack-jack going on vacation...discover card refunded but powerjack-jack still has never replied to his rayjunglepower seller scam....????😢

the 54000 watt cable >>> that would be a big question for sure...and a likely big cable etc...????🤔🤔

most of them (newer parallelable LF inverters) have built-in mppt etc. now which could eliminate the expensive solar combiner box part at least some of them depending on the total size of the solar array etc....Sean said his big combiner box was something in the neighborhood of 600 dollars....for me>>> I just re-purposed high voltage electrical boxes bought cheap on eBay(50-80 dollars)...i think i learned that from alt-e....

looks like UL listing is coming or available for most of the LF inverter competition.....😎

i have been buying locally and online with free shipping to save on fuel costs as much as possible.....🤔

have a great Monday!


   
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(@dickson)
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Joined: 4 years ago
Posts: 1058
 

.discover card refunded but powerjack-jack still has never replied to his rayjunglepower seller scam....?

Did you get  refunded for all your ebay  orders or just one  and still in dispute for others .   I think  PJ in China is the one who planned  the scram  on rayjunglepower ebay account .     David still have 2  ebay accounts .     You should get all your  money back since this can be claim as   fraud  and has no time limit  .     


   
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(@dickson)
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Joined: 4 years ago
Posts: 1058
 

Sean said his big combiner box was something in the neighborhood of 600 dollars....for me>>> I just re-purposed high voltage electrical boxes bought cheap on eBay(50-80 dollars)...i think i learned that from alt-e....

I wonder why Sean not have as many  solar panel as you .    More solar panels mean more combiner boxes  and  copper wires  is too expensive  to run from  the hill  to the  MPPT  in the basement .  I use plastic electrical boxes  and plastic  conduit from home depot .    


   
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(@dickson)
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Joined: 4 years ago
Posts: 1058
 

they (San Tan Solar) do not have to have their potential customer prepay before the product is manufactured...no need to worry about powerjack-jack going on vacation.

I  do the math .    I  charge with Discover credit  at 20 percent  to get help with charge back .   The balance is  3000 dollars  until I get delivery .  The interest is  600 divided by 12 so one month interest is 50 dollars .    Delivery is November  so 4 month interest is  200  dollars  .      The interest  for  5 month  is more than the  free shipping  as UPS  charge  150 dollars for shipping   if I buy next  year and not use the credit card .       Some  bank charge 29  percent  so  cost of waiting is even more .      Most bank  allow  60 days to dispute  till delivery  but the interest   of  200 dollars is  profit for the bank .    


   
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pilgrimvalley
(@pilgrimvalley)
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Joined: 4 years ago
Posts: 826
Topic starter  
Posted by: @dickson
I use plastic electrical boxes and plastic conduit from home depot .

I like the metal boxes, I try to get primarily the outdoor rated ones, that way i can use inside or outside....

although the metal boxes are a bit more difficult to put new holes in,,,my feeling is they may contain any electrical boo boos if needed... 

I also bought a  electrical hole punch set as I learned that from my electrical friend some 30 years prior when I updated to a new electrical service main breaker box in one of my earlier electrical re-wire upgrade jobs...

out in the shop I use all metal conduit to keep the rodents and squirrels and raccoons from causing me misery...

always learning more and have been investing in better tools since way back when....definitely avoid most Chinese manufactured tools....I like Klein tools for electrical stuff and others...

I bought a 20 foot and a 40 foot tandem axle deck over trailers for $750 this week (so about $375 invested in each one)....plan to repurpose the 40 foot one to mount more solar panels on it...I think it will hold 20 to 40 panels at 45 degrees and make some shade for the hair sheep at the same time... darn hot and dry....

the 18k Sigineer's inverter fan is reported to be a lot quieter than the GroWatt....

wonder >>>> what the noise rating is on the specially made/ordered Chinese gs inverter fans??? how many decibels of noise....likely less than the el cheapo mppts....Sean is trying to block out /wall off >>>> the background noise they cause....

today is shopping day with family....have a great Friday all 😎


   
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(@dickson)
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Joined: 4 years ago
Posts: 1058
 

wonder >>>> what the noise rating is on the specially made/ordered Chinese gs inverter fans??? how many decibels of noise .                             Mine on max  speed all the time and  is 66 decibel   and  is   louder than  my  generator  at 60 decibel  .    Two  fans sound like a  jet engine  .    The  youtube show  Sean fan at  85 percent  at  85 degree F  in his basement  and as loud as a  jet engine  .      Four inverters will make the  basement 100 degree  and  8  fans  at  100 percent  and I   imagine the sound of   a 747 in the basement  .   

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(@robertm)
Estimable Member
Joined: 3 years ago
Posts: 205
 
On 7/18/2022 at 1:03 AM, pilgrimvalley said:

..no need to worry about powerjack-jack going on vacation...discover card refunded but powerjack-jack still has never replied to his rayjunglepower seller scam....???????🤔🤔.😎

I'm researching that add-on lcd screen power jack sells,  wondering if it will give me useful information, and noticed 3 different EBay vendors now. Maybe Ray Jungle Power's kids? My 2021 inverter is AMG split phase, but I have just one video connection labelled 110V. I wonder if the double one (110V, 220V) they call Thor's notebook could give me data on both voltages?


   
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(@dickson)
Noble Member
Joined: 4 years ago
Posts: 1058
 

I'm researching that add-on lcd screen power jack sells,  wondering if it will give me useful information, and noticed 3 different EBay vendors now

DO NOT BUY  and waste your money .      All the seller  do what PJ in CHINA say .    The FETs  I bought and test on my work bench on a test inverter  and some  will blow up  and  LF driver also some will  blow up  and if that happen  then  all the good FETs will also blow up .     I  bought AWG 0  cable  and at 120 degree F  the  aluminum  crimp  get hot and expand  and the  cable come loose and arcing  cause my inverter to shut down  last week .  The insulation is actully on FIRE  but away from the battery .      

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(@robertm)
Estimable Member
Joined: 3 years ago
Posts: 205
 

Here's where I have bought inverter cable.

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(@sid-genetry-solar)
Member Admin
Joined: 4 years ago
Posts: 2890
 
7 hours ago, RobertM said:

I'm researching that add-on lcd screen power jack sells,  wondering if it will give me useful information, and noticed 3 different EBay vendors now. Maybe Ray Jungle Power's kids? My 2021 inverter is AMG split phase, but I have just one video connection labelled 110V. I wonder if the double one (110V, 220V) they call Thor's notebook could give me data on both voltages?

No, it won't work...notice in the listing pictures where they show the "Thor's Note Book", it has 2 cables going to 2 ports on the inverter.  It's basically a rewiring of the 2 screens they used to have in the chassis.

The "double one" will show amperage on L1 ("220v"), and amperage on N ("110v").  This completely falls apart with a normal split-phase U.S. system...because "110v" loads on L2 will not be registered.  And if you happen to have balanced 110v loads on L1-N and L2-N (i.e. refrigerator on one circuit, and a chest freezer on the other side), the "110v" meter will read 0 watts.


   
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(@robertm)
Estimable Member
Joined: 3 years ago
Posts: 205
 
50 minutes ago, Sid Genetry Solar said:

No, it won't work...notice in the listing pictures where they show the "Thor's Note Book", it has 2 cables going to 2 ports on the inverter.  It's basically a rewiring of the 2 screens they used to have in the chassis.

The "double one" will show amperage on L1 ("220v"), and amperage on N ("110v").  This completely falls apart with a normal split-phase U.S. system...because "110v" loads on L2 will not be registered.  And if you happen to have balanced 110v loads on L1-N and L2-N (i.e. refrigerator on one circuit, and a chest freezer on the other side), the "110v" meter will read 0 watts.

So, if I buy the 110V version, it will give me amperage info on the L1? (I already have an AC clamp meter) Does it also display fault codes for the inverter?

 

I have five aftermarket choke coils that I am going to experiment with on my AMG inverter. 

From the EBay pictures, I gather that the official "Power Choke" coil is connected inline to the AC output, both the hot and neutral line. My aftermarket coils are 50uH 20A. If 2 are linked in parallel would the value then be 100uH 40A?  The smallest official choke Power Jack offers is 65uH 220A.

I will start by testing  115V motors, but may progress to 230V motors powered by L1 and L2 and a common neutral wire.  Would it be safe to connect one or more coils to each hot line and then the shared neutral? The biggest motor I will ever attempt to start is 1/2 hp  (230V) that draws about 11 Amps at startup. The surge starting amps go through one hot line and the normal operating amos go through the other hot line.


   
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(@sid-genetry-solar)
Member Admin
Joined: 4 years ago
Posts: 2890
 
8 minutes ago, RobertM said:

So, if I buy the 110V version, it will give me amperage info on the L1?

...likely just N.

8 minutes ago, RobertM said:

Does it also display fault codes for the inverter?

No.  There is no connection between the external display and the CPU on the control board.

 

9 minutes ago, RobertM said:

My aftermarket coils are 50uH 20A. If 2 are linked in parallel would the value then be 100uH 40A?  The smallest official choke Power Jack offers is 65uH 220A.

Parallel would double the current and halve the inductance.  You would end up with 25uH 40A.  https://www.allaboutcircuits.com/textbook/direct-current/chpt-15/series-and-parallel-inductors/
and https://www.translatorscafe.com/unit-converter/en-US/calculator/parallel-inductance/

 

11 minutes ago, RobertM said:

I will start by testing  115V motors, but may progress to 230V motors powered by L1 and L2 and a common neutral wire.  Would it be safe to connect one or more coils to each hot line and then the shared neutral? The biggest motor I will ever attempt to start is 1/2 hp  (230V) that draws about 11 Amps at startup. The surge starting amps go through one hot line and the normal operating amos go through the other hot line.

So I have serious doubts that said inductors really serve any real purpose, apart from a marketing gimmick.  At best, the only time they will do anything at all would be the very instant the motor is connected--which could be mid-cycle, and would be a "slam" on the wave.  The inductors could theoretically therefore "absorb" some of that initial "slam."

But as far as starting power / total starting surge, etc., etc., they will not make one whit of a difference.  The real issue is the poor FET gate drive in the PJ inverters.

 

If the motor has an LRA rating, that's basically the startup surge rating--as it starts from a dead stop.  (LRA = locked rotor amps.)


   
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(@robertm)
Estimable Member
Joined: 3 years ago
Posts: 205
 
Posted by: @sid-genetry-solar
...likely just N.

 


   
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