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Those are 22000 uf at 50v to replace 10000uf at 80v? Seems a bit off spec, especially if you are mixing them with original 80v caps. Just saying....
My inverters are 24V input, so had 18000uF 50V caps fitted as standard. These 50V 22000uF ones were the closest match I could easily source.
the 80V caps are used only on the 48v mainboards I suspect.
So long as the voltage rating is higher than expected peak voltage input by a safe margin it shouldn't be a problem. The large increase in capacitance may present a problem for the PCB if the inverter is ever dead dropped onto a battery etc without precharging, depending on the track width and copper thickness. Fuses / breakers may need to be uprated likewise. Of course it should never be done but its the things that are never done that always get you.
Yep, 24V hence the 50V caps. My inverters are 24v-240v rated at 8000 "Chinese Watts". But I only draw 16A max from them (about 3.6kW) hence why I've never blown one up yet I guess.
I should have realized you had a 24v inverter there. I even remember you saying so previously. I got to be right once last week so guess I'm not due again for awhile....
April 1st 2022 : I opened the 2nd 20000 AMG version inverter box today;; been sitting there for about a week or so..... had a loose nut which was one rattle i heard picking up the box...it is the nut on the transformer hold down bracket. this inverter is tiny compared to the 20000 watt one i got 2 years ago...which weighs over 164 pounds.....
going to have to take the top off it now cause the bolt is floating around inside someplace....no physical damage on the outside and the double boxing looked good..
of course the included manual does not have any specification that match it. no charger, no ups, no ats, none of that stuff just a 20k 48-volt lf psw sp amg version inverter the bottom seems to be where they are hiding the specs so it was just a coincidence i saw that because of the loose nut in the box rattling around...it has 6 support feet on the bottom, sort of like the old stereo receivers.
must be microsizing all of them ....this one is a lot lighter maybe 60 to 80 pounds tops... must be a plastic terroidal core???? ha ha ha taking lesson from you know who🤣
i think it shrunk for the 3rd time... kind of like the movie .....hey honey i shrunk the kids....
everyone is sleeping so time to break out the socket set.... and pop the top!
PowerJack 20000 watt lf sp psw amg version inverter received about a week ago: the big board in the bottom has 4 brown cylinder shaped capacitors and 12 mosfets on each side so 24 mosfets with the 12 on the split heat sink having the little bead on the center leg & the 12 mosfets on the long one piece heat sink do not have the beads on the center leg of those mosfets...
i think the board ( i described above) has a 2020 date on it...
i did not measure the transformer diameter but i think it has the tag on this one...
what is interesting is on the bottom of the case it has asl 3 / asl 4 laser cut into it but you do not know which one yet. it is lase cut in a way that you would have to be inside the case looking down to read it but the toroidal transformer makes that impossible...from the outside looking at it from the bottom it has the letters reversed if you try to read it that way. kind of like russian letters??
had to reassemble it as the family is up. 12of the 10mm head screws which are magnetic so probably a galvanized steel or something the case is stainless steel and fits together nicely.
again??? >>> it has the brass bars interconnecting the two positive and two negative dc posts... brass in a rather poor electrical conductor but cheaper than copper or tinned copper....
pictures later...😎
building a shelf to put it on...
PowerJack LF SP PSW AMG version inverter description: wonder if the POWERJACK 16,000 watt and the POWERJACK 20,000 watt LF SP PSW AMG version inverters are in the same box but have a different sized toroidal transformer. there is a weight difference but i have not put them on the scale yet...
there is again the 2 wires going from the control board to the negative dc busbar of unknown significance??? the 16000 watt had it also.
i pulled the end panel off the 20000 watt LF SP PSW AMG version inverter to be able to retrieve the loose transformer bracket bolt and flat washer. the main board with the 3 aluminum heat sinks to dissipate the heat from the mosfets is connected to the stainless steel case with white nylon stand offs that are fairly thick, so not to break in shipping....
too bad they did not have a lock washer or locktite or something to keep the bolts in the bracket to the toroidal transformer during shipping....in order to replace that one bolt for the insulated toroidal transformer bracket, i may have to disassemble it even more.
12 bolts to remove the top, 6 bolts to remove the two ss protective covers, 3 more bolts to remove the fan end of the case, the front and back will be a little more difficult as the wires are bundled in zip ties..
it is a very modular case design of all sides bolted together and the holes line up good,,, the edges of the case are a bit hard on the hands(a bit sharp).
i definitely like the six wide support feet on the bottom of the case... not a wall mount style... it is a put in on a shelf style... i like that...
the included manual does label more of the pieces and parts but not all.
a schematic diagram like my Sansui stereo receiver had or the NEC tv and VCR had would be useful...
as they just copy other inverter designs according to some ,,,, it should not be some big secret, but then again maybe this schematic diagram is available some where...
it seems on this one the connection are on the other side of the 3 position switch powersav off, off, powersav on.... i will not be using the powersav on position in my build...
the 48 volt 1.5 amp fan is a 2 wire red and black connection....
the brown cylinder capacitors say 80v 1000 micro farads i see that it has 4 of those
did not read the numbers on the mosfets....maybe later...
i did see at least one hall sensor and 4 wires coming out of the transformer i think those are from the transformer secondary as i understand it....
should of taken more pictures... maybe later,....🤔🤔😎
need to get a shelf set up first....
it is a nice sunny day out,,,, glad i am not in a flood zone,,, i have an artesian well that feeds a pond year around... great for the animals in the pasture at my south dakota off-grid farm... mini farm as it is only 6.6 acres....
have a great day😎 cheers all;
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PowerJack 20000 watt LF PSW SP AMG version ; more pics from cell phone camera... it is not user friendly at times... especially in poor light...
the smaller nut and bolt was to the toroidal transformer bracket rattling around in the box; the bigger bolt headed screw are the 10mm head screws they use to assemble the case together with
the sticker on the bottom just has some number for hv and lv testing.
you can see the ASL3 ASL4 laser cut on the bottom but backwards as it must be designed to be read from the inside before the toroidal transformer is bolted in place.
have to open it up again to get more specifications.
cheers all, have a great Saturday... the sun is shining and it is a super day outside...😎
PowerJack LF SP PSW AMG version inverter description: wonder if the POWERJACK 16,000 watt and the POWERJACK 20,000 watt LF SP PSW AMG version inverters are in the same box but have a different sized toroidal transformer. there is a weight difference but i have not put them on the scale yet...
The only way to determine the actual possible continuous wattage of said inverters (that is, without testing them) is to count the number of strands on each transformer winding; the core size only determines the limit for how much wire could be on the core. GS6 inverter winding specification pretty well maxes out an ASL5 core--so if you've got an ASL3 or ASL4 core in said PJ, you won't be able to push much more than 4-5kw continuous no matter what.
Helps considerably if you have a caliper that can measure the diameter of the wire (2.0, 2.3, and 2.5mm are the diameters they use).
-so if you've got an ASL3 or ASL4 core in said PJ, you won't be able to push much more than 4-5kw continuous no matter what.
Oh NO - now only one quarter of 20000 watt and ASL4 will not output 4kw continuous . How is this AMG better than the old 20000 watt with the ASL9 transformer as advertise ?
i will have to get a pic of my 164 pound 20000 watt one...also,,, i think they have shrunk it 3 times now.... it was not an amg version it came about 2 plus years ago...
there are some models that are heavier that may be better...
for instance the powerjack 26000 48volt lf psw sp amg version is a lot bigger transformer, a lot bigger box etc....
the 20000 watt one does have a label on the white output wires but i did not read it .... i will open it up again....
hard to buy 2 of the same unless you buy 2 at a time...🤣🤔🤔🤣
I put the PowerJack 16000 watt LF PSW SP AMG version on top of the PowerJack 20000 watt LF PSW SP AMG version and they are in the exact same physical dimensioned stainless steel case.
going to have to pop the top off both to see what the differences are....
hope they did not pull the switch-a-roo by simply putting a different sticker on the top of the case????? 🤔🤔🤔🤔
these are sold as powerjack with powerjack warranty of 15 months and you register for the warranty through powerjack....😒😒
55 minutes ago, pilgrimvalley said:hope they did not pull the switch-a-roo by simply putting a different sticker on the top of the case?????
It's a PJ inverter, what else would you expect? It's generally understood (I hope!) that "PJ power ratings" don't mean anything in the first place.
It's generally understood (I hope!) that "PJ power ratings" don't mean anything in the first place.
yes, i understand that the number rating means little...🤔
the 20k amg says 10k continuous but the included manual does not mention them at all🤔
the 16k amg says 8k continuous but again the manual does not mention them at all.🤔
((( I have a 20k PowerJack 48-volt psw sp lf inverter that weighs about 164 pounds that is totally different than these miniature 20K AMG versions...this one may do the heavy loads but you will have to pay over 2000 dollars if you can get one...i bought it in 2019 or 2020....)))
their eBay advertising is very deceiving now as to what they are actually selling!!!!! possibly more than they were being deceptive before...
i have a 15k 3 box 24-volt PowerJack that weighs about 100 pounds or so that is totally different than these miniatures they sell without any specifications...kind of hide the details of their new AMG version miniatures... i have had it running continuously since August 2021... a lot bigger than the new 16000 and 20000 amg models...
the 26000 watt AMG LF PSW SP is a lot heavier with a lot larger toroidal transformer and it is rated at 13000 watts continuous but it dwarfs what they sent as 16000 and 20000 amg versions in size....
power out continuous is to be moderate until i am ready to risk a higher load.....
many things to get done as the weather gets better for outside work....
thanks for the replies. have a great day 😎
PowerJack 20k amg version LF PSW SP ---- hard to get 2 the same????
I am thinking the micro-sized 20k i previously received was labeled incorrectly...
Friday: May 20th 2022, I received a 20k PowerJack that is in the same size box as the 26k inverter but still not what the ad stated but it is physically larger with a asl 7 or asl 8 transformer. this is found laser cut on the bottom of the stainless steel case, but unreadable unless you look at the bottom of the case...
go figure ???
it was supposed to be the new module design but that is not what arrived...
I will have to contact them to see what is going on.....
I will pop the top to get pictures in a few days...
PowerJack answers via skype and when it is 7pm here in South Dakota it is 8am in china....
weather is great today and charging the vehicle batteries and airing up all the neglected tires with off-grid solar on a 6k LF inverter.
still need to make some more 4/0 battery cables but the livestock fencing is taking priority at the moment....
have a great relaxing Sunday....😎
it is a 48-volt inverter described above... the 20k I just received Friday .... took about 27 days to arrive....via the slow boat ride...for $427.75 including tax and free shipping...
🤔🤔🤔😎😎😎👍
maybe it will do 10k ??? 🤣🤣🤣 for 427 dollars??? 🤣🤣🤣