Multiplus high power test in hot climate. Overheat and Overload Test.

Рет қаралды 35,257

2 жыл бұрын

This is the first real test of the battery shelf and the PowerWall together. We are turning the Multiplus on for the very first time. Will it work and can it deliver? We're not mucking around much and doing the high power extreme test right away. With 33°C ambient temperature we're trying to pull as much power as we can: pool pump, vehicle charging all at once on full power. With 5.8kW and over 110Amps from the battery, this is insane!
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Пікірлер: 212

@petertrebing6875 2 жыл бұрын

Man Andreas, I've really never seen anyone who puts in so much effort. I think that's great. It's more exciting than all the streaming channels. But hey: keep your balance. We love you even if you slow down a little. I don't want to cheer you on any more. You are already the champion! Keep calm and celebrate what you accomplished already! Grüße aus Heidelberg

@OffGridGarageAustralia 2 жыл бұрын

Thanks Peter. I try to inspire others with this build and project. If people take single ideas from this whole project to build their own, that's a big win for everyone. No filming yesterday, so I took a day off 😉

@petertrebing6875 2 жыл бұрын

@@OffGridGarageAustralia Don‘t bother :) You inspiring us a lot. I really like your style, you‘re authentic. Here in Europe things don’t get that well… I want to focus on renewable energy and technology, but here many people talk about war in Ukraine…

@edwardvanhazendonk 2 жыл бұрын

Yes, yes, yes. He's done it, great work Andy. Congrats on a hefty system!

@OffGridGarageAustralia 2 жыл бұрын

Thanks Edward!

@kswis 2 жыл бұрын

Excellent test. You've built a hell of a system. I'm stoked to see all the batteries shelved and pulling a similar load test. 78c is toasty for sure

@OffGridGarageAustralia 2 жыл бұрын

I'm so keen and ready to install these first 16 cells in the shelf, cannot wait!

@wayne8113 2 жыл бұрын

Thanks Andy, Looking really good, well worth the effort

@chuxxsss 2 жыл бұрын

Go Andy, what a buzz mate. All power to you, mate, for your efforts.

@jamess1787 2 жыл бұрын

You chuck, are a super Aussie.

@antoni_sk 2 жыл бұрын

Finally !!! 👍The inverter is connected, I'm happy with you... and I'm looking forward to the serial connection of the inverters...😉

@OffGridGarageAustralia 2 жыл бұрын

Thanks, Antonin. This will be one of the next steps. An exciting one...

@edwardbyrd7667 2 жыл бұрын

Congratulations Andy, well done

@OffGridGarageAustralia 2 жыл бұрын

Thanks Edward!

@buelentzeyben4316 2 жыл бұрын

Congratulations! Great milestone.

@OffGridGarageAustralia 2 жыл бұрын

Thank you. Yeah, very happy how it turned out and very happy with the performance of the Multi.

@danushkalokuge Жыл бұрын

I'm running solar company in my country so some of the configuration very helpful. Happy feeling 🤗. Good work

@cowboymcq6711 2 жыл бұрын

Doing your own solar projects is very rewarding. I totally feel your joy Andy ❕🌞🌞🌞🌞🌞👍🏼👍🏼👍🏼🇺🇸 Keep the fun and exciting videos coming O an educational cheers buddy 🍺

@Spunky.sparks 2 жыл бұрын

One word........ AWESOME 👌 👏 👍 Nicely done A 👊

@OffGridGarageAustralia 2 жыл бұрын

Thank you so much 😀

@misterkrispy8010 Жыл бұрын

Excellent Video! Thank you.

@LLampen 3 ай бұрын

You could have a two battery switch there, but instead of two batteries, you could have Y-connection from the one battery to the switch and the other line could include the pre-charge resistor. Then it would be possible to keep it for 30 seconds for example on 'battery 1' that has also the resistor, then switch to 'battery 2' that would make the same connection, but without the resistor. Sounds good, ja? Really nice to watch also these older videos, I usually watch all the new videos as soon as I spot there is a new release. Awesome content you bring us all here, I LOVE it, keep it up. Vielen Dank!

@ptk888 8 ай бұрын

I love the ‘Smoke Test’ mentality! You passed!🎉🎉 Same project management rationality I use ……..

@excillisbank2611 2 жыл бұрын

Superbe avancée ! oui enfin de compte cette onduleur est impressionnant pour sa taille.😎

@davidrogers5343 2 жыл бұрын

so happy for you all, you got power

@marcobrian1619 2 жыл бұрын

Hi Andy, it's now all slowly coming together, all your hard work and thinking. Looking fantastic 😀⭐😀⭐ And as for those clamp meters....I too got 1 18mts ago, would get another tomorrow there a great bit of kit for the price (mainly coz it does DC power alot only do AC like all my fluke gear). Looking forward to seeing the two inverters been contacted and if you can get them talking to each other.

@OffGridGarageAustralia 2 жыл бұрын

Thanks Marc. I can't believe we're almost done!

@bramsoff-grid 2 жыл бұрын

I bought a switch for 2 batteries. The positions are 1, 1&2, 2 and off. I use postition 1 for pre load and then switch past 1&2 to postition 2.

@blackswansystem 2 жыл бұрын

So good mate. Cheers from Darwin. Reminds me of Scotty from the Engineering section of the USS Enterprise. “I’m not sure if she can take any more Captain. The di-lithium capacitors are about to blow”

@OffGridGarageAustralia 2 жыл бұрын

Hahaha, made me laugh! I sometimes feel like this with all the big cables and levers everywhere.

@jaroslavcecho3348 2 жыл бұрын

only one word... NICE!

@OffGridGarageAustralia 2 жыл бұрын

Thank you!

@waynescheepers145 2 жыл бұрын

Nice video yet again. I'm a bit behind. My son was born on Monday and been busy

@OffGridGarageAustralia 2 жыл бұрын

Oh, wow, congratulations, Wayne! I'll keep all the videos online for you to watch later 😉

@vickipps6821 2 жыл бұрын

That was realy exciting

@OffGridGarageAustralia 2 жыл бұрын

Wow, I thought this is only exciting for me...

@vickipps6821 2 жыл бұрын

I realy enjoy your program very much I understand a fair amount about DC POWER but have learned such a lot from you that I did not know and I se you are like me a perfectionist there is only a right way thank you wish I could come and see in-person but that's not possible I am in South Africa and also equipment and accessories are hard to get and cost a arm and a leg thanks looking forward to see the next video

@SVImpavidus 2 жыл бұрын

Andy. You can move the master cutoff switch to the left so it is in line with the plastic trunking there is sufficient space behind the switch to run two 70mm2 cables. on continuous and one via switch terminals. Especially if you rotate the switch body so that the terminals are top and bottom, not left and right. You can do the same when you connect the second inverter. We have just fitted a Multiplus compact to our boats lithium set up and are going through the Raspberry pi set up at the moment. A video will follow....... We will give you a shout out. 😁 Great videos.! Ant & Cid. 👍

@magicmanspaz 2 жыл бұрын

Hi Andy, On your last video I mentioned in the comments on my system I have the same Isolator switch but the 2 position. Position 1 is a resistor for pre charging the inverter and position 2 is full connected.

@OffGridGarageAustralia 2 жыл бұрын

AHHH, yeah, that would have been a better solution. Next time, I guess 😉 Thanks for the tip!

@giuseppevillella9445 2 жыл бұрын

Ottimo lavoro complimenti 👏🔋😊

@OffGridGarageAustralia 2 жыл бұрын

Thank you.

@sarelwagner1099 2 жыл бұрын

I have the black version of the switch. You can break out the backing panels, and or move the switch relative to the backing plate. Suggest you mount the resistor on back of switch terminal, the Bluesea switch that is, and mount a small ptm switch on one of those panels.

@OffGridGarageAustralia 2 жыл бұрын

Thanks, I'll have a look if I can fit it in.

@MrRossi1805 2 жыл бұрын

Well done! Greetings from Möttingen - near Oettingen. Zum Wohl und Prost. Guad g‘macht!

@OffGridGarageAustralia 2 жыл бұрын

Hahaha, thanks!

@klassichd10 2 жыл бұрын

Congrat, Bravo! Great moment. For precharging you can add an additional thin wire, a momentary button and a resistor. And yes the Multis' fans sound like a grinder or like a marine engine? I have a small 800VA Multi and it also sounds strange..

@OffGridGarageAustralia 2 жыл бұрын

We have built a pre-charge button before in the other battery and it worked great. That was a community suggestion as well. So I will see if it is actually necessary to have one at all...

@markparish9072 2 жыл бұрын

Good Job Andy. Initial Testing passed.

@OffGridGarageAustralia 2 жыл бұрын

Yes, very happy with the system so far after 2 days. Charged the vehicle again yesterday while the pool and irrigation pump ran at the same time. Getting these amps flowing 💪

@skoto.power.systems 2 жыл бұрын

Bravo👏 👏 👏 👏 👏

@cristof48 2 жыл бұрын

hi Andy, the buton and the resistor can be install in the rotary red switch

@Victor-ut4zp 2 жыл бұрын

looking all neat and clean! Congrats! I am still building a cabinet for my 37 kWh storage, hooked on a Multiplus. But don't you use any earth at all?

@YouTubeviolatesmy1stamendment 2 жыл бұрын

You can actually do remote programming on the victron stuff as long as your internet router and your raspberry are all on DC power because the inverter sometimes turns off and back on depending on the settings you change

@OffGridGarageAustralia 2 жыл бұрын

The Pi runs from a DC converter directly from the battery and not from the inverter. I know it needs to stay online during firmware updates of the inverter so had this already in mind in my original design... 😉 But you don't get full access like through the VE-configure app, right?

@SinKillerJ 2 жыл бұрын

My headcanon is that Andy has been putting around with the disconnect since the last video was published, no sleep.

@SuperBrainAK 2 жыл бұрын

awesome!! yea that battery link needs to be fixed. Boy is there alot of copper put into that battery shelf!! I love it!!

@andrewradford3953 2 жыл бұрын

What a test! I wondered how the multiples handled main earth nuetral(men) when going from off grid to grid connected.

@magicmanspaz 2 жыл бұрын

They disconnect the link. There is a ground earth relay inside which is what is used to control the link.

@OffGridGarageAustralia 2 жыл бұрын

It will disconnect the internal MEN before it connects to the grid. Only if no AC is present at the input it has this internal bonding for an off grid installation.

@andrewradford3953 2 жыл бұрын

@@OffGridGarageAustralia You are doing an amazing job of sharing knowledge with so many people who are just starting and need examples from the ground up.

@kevinback7034 2 жыл бұрын

top Job

@quilmore 2 жыл бұрын

You're an inspiration, I should have what I've ordered in weeks/months, one question for you, what size cables did you use for the AC output from the inverter?

@OffGridGarageAustralia 2 жыл бұрын

The AC output of the Multiplus is connected with 6mm cable. A 4mm would have been sufficient though but I had this already here. And with the overall output of the system of 8kVA it is the right size for my system.

@MiH1IT 2 жыл бұрын

For precharge - I'd use NH fuse disconnector in the battery box front panel and some button next to it and also eliminate the switch. That's what I use :) btw, beware when precharging Multiplus - if you don't have MP's switch in off position, that precharge won't last a single second and you will get big sparks.

@OffGridGarageAustralia 2 жыл бұрын

Thank you.

@defjamsgreen 2 жыл бұрын

Try jump wiring from the multiplus inverter + to the other smaller inverter + with the separate ( - ) cable if you want to turn both inverters on or off with one disconnect switch if it can handle the current . Otherwise this is a successful inverter hookup and load test project for the first . May the solar be with you .

@OffGridGarageAustralia 2 жыл бұрын

I want a separate switch for each inverter. I have the main circuit breaker to turn both of at the same time if needed.

@martehoudesheldt5885 2 жыл бұрын

be careful doing that as you will overload the cables and the circuit breaker and losses become a lot more

@YouTubeviolatesmy1stamendment 2 жыл бұрын

My vote would be right on the top of the switch that little cover right in that and then have the resistor on one side of that and a wire going to the contact on the other

@jamess1787 2 жыл бұрын

This one!

@OffGridGarageAustralia 2 жыл бұрын

Do we need a pre-charge option at all?

@ilariodepascali 2 жыл бұрын

Thanks for your valuable advice and suggestions. What are the three little dogs called?

@joshg1244 2 жыл бұрын

My understanding is that when the Phoenix is online it will provide all the inverter power and the multiplus will only provided inverter power once it reaches the input limit you set.

@antoniodecrisci2369 2 жыл бұрын

Nice Andy. It's very exciting. You may wish to check if your Unity multi-meter is fused, I don't think it is? Just a thought when checking high voltage/current situations.

@OffGridGarageAustralia 2 жыл бұрын

Thanks Antonio. Why should the Unity be fused?

@antoniodecrisci2369 2 жыл бұрын

@@OffGridGarageAustralia well good question, the default is for added protection for you and the equipment... and I'm not talking about the clamp part I'm talking about when using the probes!

@earthenergyhex 2 жыл бұрын

cant wait for you to build a brand new system.

@Dutch_off_grid_homesteading 8 ай бұрын

Heya, wouw that's a good test

@hummmingbear 2 жыл бұрын

What system are you using for cable channeling? I tried searching around for something similar to what you have but couldn't find it

@dumitruluca5119 2 жыл бұрын

Hi Andi! Great work, excellent channel. Congratulations for your achievements! ... And a small question: it seems that you use Noark circuit breakers rated 63 , between MPPTs and the + busbar. I wonder în this is right? A bit confused, as long as the output of each controller is rated 70 A. Am I wrong? Viel Erfolg!

@OffGridGarageAustralia 2 жыл бұрын

Thank you. Yes, that is correct, 70A is the max output of the MPPTs and 63A is the breaker rating. I will reach 70A in the future at some stage when I upgraded the solar with more panels. At the moment I won't get more than 35/40A out of the controllers. Even with 70A output, the breakers will be fine as they won't trip immediately and 70A will be only for a short moment when the sun comes out behind clouds and the panels are cold. I'll expect having more like 50-60A max from each controller but we will see.

@dougcw 2 жыл бұрын

Andy, in regards to the precharge button... what about only placing 3 of 4 mounting screws in the Blue Sea Switch and using the remaining screw hole to mount the bypass button with some hot glue or epoxy?

@cristof48 2 жыл бұрын

hello , i juste received my ZKE EBC-40L, and I found that the metal case is not connected top the earth, is it the same with your ?

@pingu99991 2 жыл бұрын

So I know you can get "2 position" versions of the battery isolator switch you have. You could replace the switch with one of those and have a resistor between the terminals for position 1 & 2, then your output from the switch can be on position 2. When you turn it to position 1 it'll pre-charge the inverter because of the resistor bridging the terminals, and then switch it to position 2 to fully connect. Then it's all in the same switch which is a little cleaner. The only trouble is that most of these isolators have the "off" position between position 1 & 2 so you'd have to turn anticlockwise to pre-charge then clockwise to connect which is less intuitive. I have seen some where off is the most anticlockwise position, then 1 is in the middle, followed by 2 so you only have to turn the switch one way but they are much harder to source.

@DIY_Off-Grid 2 жыл бұрын

This is exactly what i did, my switch has off at the bottom, the 1 on the left, the 2 on the right and both 1 and 2 combined on the top. the precharge is at the 1 position, so i can switch from the precharge, to the combined and from there to the 2 position, thats the load. to turn it off it goes from the 2 position to off. very nice to see people doing the same.^^

@OffGridGarageAustralia 2 жыл бұрын

Thanks Philip. That's a great tip. The question is though, do we need to pre-charge at all? It is nowhere mentioned in any manual, design or the specs that you have to do that in a stationary system.

@pingu99991 2 жыл бұрын

@@OffGridGarageAustralia you could probably get away with it if your supply components can handle the inrush current (I think it's safe to say yours can) and you don't mind replacing the switch in a few years if the spark erodes the contacts. There are a few things online that say uncontrolled inrush current can damage the capacitors in the power supply/inverter, or at least shorten their service life. I'm not sure if this is true or one of those electronics theories that have negligible impact in most real life conditions 🤷🏻‍♂️ I'd probably play it safe and put a resistor in myself 😅

@BobHannent 2 жыл бұрын

@@pingu99991 I seem to recall David Poz once killed a cheap inverter by not using a pre-charge resistor. But that may say more about the inverter than the process.

@johannesgross1732 2 жыл бұрын

@@pingu99991 That is true: Capacitors have a maximum rating for inrush current. The problem zone is the contact between the external contact area and the internal current distribution. Capacitors might degrade over time or fail instantly depending on current surge. Usually there are several capacitors in parallel at the input circuit. If one capacitor degrads, others get even more stress and will fail soon after. So there is usually no sudden effect observable. Nevertheless it is wise to protect those capacitors.

@thomasdesloovere4200 2 жыл бұрын

I think if you put a 10w 10ohm resistor over the switch there is no need for a extra button. Because if you really want to turn it of completely you could just turn the braker off.

@OffGridGarageAustralia 2 жыл бұрын

That would be bad design though. The resistor would burn out as it would constantly try to pre-charge the capacitors if the switch is off. It defeats the purpose of the switch if you bypass it with a resistor as you still would have 48V on the inverter input. The main breaker is for the whole system though and shuts everything off not just a single inverter.

@maricelchristarr3095 2 жыл бұрын

I have powered my victron 1600W compact inverter from an inverter generator with no issues. So I don’t expect you will have any problems as it should sync to the smaller inverter

@OffGridGarageAustralia 2 жыл бұрын

Thank you. That's good to hear. I already have wet palms again just thinking about it to link them together 😁

@nigelcharles511 2 жыл бұрын

It was suggested in your last video that you mount a push button on the side of the switch with the resistor mounted within the back of the switch. This is what I did on my system so I know there is enough space.

@OffGridGarageAustralia 2 жыл бұрын

Thanks, Nigel. So the button is mounted at the bottom part of the switch but the cables need to be connected to the switch itself. I'll have to have a look if this is somehow possible, sounds very tight space.

@nigelcharles511 2 жыл бұрын

@@OffGridGarageAustralia It is a little tight but careful placing of the miniature p/b switch and resistor worked for me. Having the p/b on the most visible side of the switch is a good reminder to use it before operating the battery switch.

@sergeyblinov4957 2 жыл бұрын

Are Victron inverters really needs precharge resistors at DC input? Telecom-grade ones have build-in starting/precharge circuits, for example.

@OffGridGarageAustralia 2 жыл бұрын

That's the question I have asked in the next video (it's not out at this point). I never have seen any documentation from Victron saying you need to do that.

@adrenalineissues 2 жыл бұрын

Use anti seize on all stainless threads or you’ll have galling and seized nuts. Dielectric grease doesnt work for anti gall. There are compounds that do both but hard to find. Aluminox on battery terminals

@bboyda4399 2 жыл бұрын

Why not add a small wire directly from the battery through a small push-button where you originally were going to mount one you could put a matching resistor in-line or choke to limit in-rush?

@SkypowerwithKarl 2 жыл бұрын

Hey Andy imagine if we didn’t have gravity to keep our tools in place (mess). Amazing how fast a mess is made and how we loose a tool when we put it back LOL. Organized mess?

@john_in_phoenix 2 жыл бұрын

I'd hate to see that if it was hot. I live in the desert, so your high is not much above our high temperature today, ours is about 22 degrees C today, and it's February. Our summer highs are considerably higher. I think I am glad that I have sized everything to stay around 50%. Yes, fuses tend to get hot, you may need ventilation in the cabinet.

@JaredKaragen 2 жыл бұрын

You are a savvy guy. Open the inverter and measure the fan's size. Look at the brand Noctua for fans. High CFM, VERY VERY quiet. They are used in PC's so are VERY quiet because of being indoors, etc. Swap that bad boy out. Odds are its 12 or 5V powered (sticker on the fan will be found with specs). The thing will be silent running with a good fan in it.

@SzymonHawlicki 2 жыл бұрын

Hi I didn't want to worry you seeing the Noark fuses, but after this episode the quality of these fuses is no better than for single phase ones. I am already explaining what is going on, when building new production halls, in the company that works, we used these fuses. After some time it turned out that the fuse, for example, the 3F 20A fuse did not work properly, only the protection in the 3F 25A machine or bigger worked for thermal reasons. After examining most fuses with special gauges, it showed that the tolerance is 30% + sometimes even more. And the internal resistance of the fuses causes discoloration on the housing. I was hoping your fuses would work fine because sparks at 100 amps could cause a fire, which I don't want for you. It would be advisable to install a smoke detector in the wi-fi system at the very top of the cabinet (there are also those with protection against temperature, probably 80C and smoke)

@OffGridGarageAustralia 2 жыл бұрын

The only thing is, I don't use NOARK fuses...

@SzymonHawlicki 2 жыл бұрын

@@OffGridGarageAustralia Sorry, my mistake (uncle Google translated it wrong and I didn't catch the detail) I was thinking of a circuit breaker that was in the 13th minute of the movie

@jamess1787 2 жыл бұрын

See Julian iletts channel for his DiY EVSE, maybe you can incorporate a DiY ESP and Vehicle charger to optimize solar input to your car and make sure you have enough power for your home: circa 2028.

@OffGridGarageAustralia 2 жыл бұрын

Thanks, I'll have a look.

@BischesseHunting 2 жыл бұрын

Now my learning curve starts. Looking forward to your comments on ve.configure which i hate....

@OffGridGarageAustralia 2 жыл бұрын

This will come soon...

@PowerPaulAu 2 жыл бұрын

Hey Andy can you give us an explanation of the weird effect the FLIR does with the outline of the item being skewed to the side of the thermal image.

@OffGridGarageAustralia 2 жыл бұрын

It's in the manual and called MSX calibration. I have not bothered with that but can be calibrated in the settings. I have now done it.

@helmo5663 2 жыл бұрын

Hi Andy, I assume that you used VE Configure 3 to configure the MP2 before running. This is important in my opinion. if not Victron has a very good comprehensive manual online.

@OffGridGarageAustralia 2 жыл бұрын

Nope, not yet. The inverter runs like this out of the box. Configuration is only necessary if you have an AC-input and want to do more. Which we obviously want 😉

@sh839c 2 жыл бұрын

Can you give me a link to your torque wrench please. Is this setup for the whole neighborhood s emergency power?.Incredible work sir.

@OffGridGarageAustralia 2 жыл бұрын

It's here in the list of tools I'm using: off-grid-garage.com/measurement-tools-and-analisers/

@urbfree1297 2 жыл бұрын

Aye Andy. More small Island advice for a big island man......use the other switch; the one that has 1; 2; Both 1 &2 and Off. I got this from off KZfaq. Put the resistor on 1 and put the inverter on 2. when you switch it on 1 the resistor will charge the capacitor. Then go back to off then go to 2 and leave it there to run the inverter. Thank some body on KZfaq. I did not come up with that.

@Tek69 2 жыл бұрын

I can concur about the fan noise. Both my original MplusII/48-5000, and my current MplusII/48-10000 have loud fans, not a nice hum noise either, almost sounds like bad bearings in a brand new fan. Squirrel cage fan would be better.

@OffGridGarageAustralia 2 жыл бұрын

As per the Victron Community post, they seem to have fixed that with the latest update though. So this is already the 'quieter noise' apparently. Even in our hot climate the fan does not run as often as in the smaller inverter. I'm not too bothered at the moment as everything is installed in the garage and not the house.

@reginaldjones9924 2 жыл бұрын

Hey Andy... Does it matter whether you pre-charge inverter capacjtors with the positive or negative cable?

@OffGridGarageAustralia 2 жыл бұрын

That should not make a difference, no.

@ronny7380 2 жыл бұрын

Super Video. Ich habe mal eine Frage. Wie funktioniert das prechachart. Welche Komponenten brauche ich da.

@OffGridGarageAustralia 2 жыл бұрын

Da nimmt man einfach einen ~20 Ohm Widerstand mit 5W und ueberbrueckt damit den Schalter fuer ein paar Sekunden. Dadurch fliest ein kleiner Strom in den Inverter was die Kondensatoren etwas vorlaedt und den grossen Funken verhindert den man sonst beim Einschalten bekommt.

@benbmw86 Жыл бұрын

Hi Andy, l watched all or videos some even few times. I like ur tests and reviews. I think u best person to ask l got multiplus 2 48v/5000 like You. When all loads disconnect showing about 18w consumption without loads with. 50w load showing 70w out from batteries that normal ?

@John-gm8ty 2 жыл бұрын

can you please add the torque thingie to the tool list pretty please with sprinkles.

@John-gm8ty 2 жыл бұрын

seems to be a LOT of "winners" "short listed" lol

@johannesgross1732 2 жыл бұрын

Regarding hot ANL fuse: Please be aware that besids safe short circuit protection the characteristics of ANL vs. Mega is different. While ANL spec ends at 100seconds Mega specifies behaviour up to 1000 seconds. ANL fuses are known to run hotter at high load current. This fact might be caused by less contact surface or by different design of the fuse itself. It will ad some know-how to the commnity if you change the ANL fuse at your setup to Mega fuse of same rating. I bet it will run cooler than ANL in case of steady DC current. On other hand we should be aware that the short current interruption capability might be very different depending on type. For big battery main fuse I will use T-type fuses (160V / 20 KA)

@OffGridGarageAustralia 2 жыл бұрын

I have an ANL fuse inside the old battery box but have Mega fuses in the battery shelf as per Victron recommendation for these inverters. Mega fuses have a lower resistance than any other fuse, hence less heat. Class-T fuses will work but I wanted to isolate the circuits (pos and neg).

@jcs1492 8 ай бұрын

Andy, are the victron your favorite inverters ?

@OffGridGarageAustralia 8 ай бұрын

They are certainly not the best (what is the best?). I absolutely love their flexibility and features, integration and total remote control. This is unmatched on the market! I have all Victron gear in my pocket on my mobile and can change ALL settings of all devices from anywhere.

@MiH1IT 2 жыл бұрын

Btw, Blue Sea systems stated that their switches are for 48 V max (12, 24 and 36 V systems) and should not be used in 48 V systems. With some safety margin, it should probably still work, but insurance company can have different view.

@OffGridGarageAustralia 2 жыл бұрын

That's what installers are using around the globe as battery main switches. It's 48V nominal voltage...

@MiH1IT 2 жыл бұрын

@@OffGridGarageAustralia Yes, I've seen it used in other installations, but it still isn't approved for this. It says 48 V MAX, not 48 V (system). It wasn't designed for 4x12V but for 36 V system. That information is directly from manufacturer. You can ask them yourself and you will get the same answer: """Our battery switches have a 48-volt Maximum rating. So typically, 12, 24- & 36-volt systems that would never exceed 48 volts. Our switches are not rated for 48-volt systems that will reach near 60 volts in some cases."""

@nigelcharles511 2 жыл бұрын

As the switching is mainly done by the BMS the power switch on the positive side will only be used on setup and in emergency if the BMS fails on. The switch is obviously coping with occasional use and is mainly under stress during switching so should be OK if normally left on. I searched around to find a switch rated at 60v. Although I eventually found one it looks suspiciously like the Blue Sea switch. I have fitted it anyway and it seems to be OK in the short term.

@vaneay 2 жыл бұрын

Some info here on Working VE cAN interfaces working with Venus OS on the Raspberry Pi

@OffGridGarageAustralia 2 жыл бұрын

Ve.Bus it is, Ve.CAN is different again...

@Thor_1872 2 жыл бұрын

15:25 that sound in the breaker sound like arcing to me. I hope it's not defective.

@OffGridGarageAustralia 2 жыл бұрын

It would cause heat, right? It sound rather like a small washer rattling around...

@user-fv6tf2ef2b Жыл бұрын

Hello !!! do you know how many watts per 24H the 1600 watt 12V consumes on its own compared to the 1600 wwtt 24V? already have a 12V inverter and I don't want to throw it away, but I would like to use it together with another victron 1600watt that I intend to buy.sorry for my bad English

@Raphael_Hofmann 2 жыл бұрын

Might only one precharge resistor at the main large circuit braker be enough? You don't change your setup every day...so yea ^^ But if you want to be extra, what about including the precharge resistor into your red switch...maybe on it's side or top?

@OffGridGarageAustralia 2 жыл бұрын

Do we need to pre-charge at all?

@Lary72 Жыл бұрын

In the documentation of this inverter I find the following parameter: power consumption at idle - 38W It is interesting whether for 24 hours this consumption is active and if there is a load it remains the same. Do the panels have to provide 24X38W= 912W every day just to run the inverter? It is interesting to me, if you make some measurements of this own consumption, that on certain days it may be more than the useful power that we have received.

@pmacgowan 2 жыл бұрын

Andy how are you getting 16a from the granny charger, what does your charger setup look like ? ... PS I also have a white M3

@pmacgowan 2 жыл бұрын

That number you send for what's app does not exist, have you been hacked?

@jime9305 Жыл бұрын

After so much care and thought about appearance it pains me to see the red wire on the negative circuits...it must be corrected!

@BobHannent 2 жыл бұрын

For the pre-charge resistor, how about running a modest cable from the inverter to the cabinet and having your buttons there. Then you can have a cheap volt meter which describes the voltage difference between the pack and the inverter while doing the pre-charge? Maybe even an analogue volt meter so you can see the needle move across the face as the potential difference lowers? The you can have a control panel which has a flavour of an old power plant? Also I might have put those 600A switches the othe side of the trunk so the wire could cut the corner, it might be easier on the turns and allow you to have the switch position you wanted. Probably too late to change now?

@OffGridGarageAustralia 2 жыл бұрын

The question is do we need to pre-charge at all in a stationary setup?

@alexandergunda8916 2 жыл бұрын

@@OffGridGarageAustralia Andy, I would say "yes". You want to avoid the sparks in the switch. There can be always be a "downtime" when you need to disconect the battery from the inverter, therefore...

@BobHannent 2 жыл бұрын

@@OffGridGarageAustralia the bigger the battery, the bigger the inrush current potentially is. So, think as you expand, unless the inverter has a soft start, your putting strain on those switches at least.

@OffGridGarageAustralia 2 жыл бұрын

@@BobHannent I think the inrush current is dependant on the size of the caps in the inverter so won't change with battery size.

@BobHannent 2 жыл бұрын

@@OffGridGarageAustralia it forms a function of the internal resistance of the pack and the capacitors, but the caps will try and draw as much as they can from the source. If there's low ESR from the capacitors then they will draw huge current because the whole circuit will have a tiny resistance.

@christophec252 2 жыл бұрын

Hello Andy. Why did you not use conductive paste on all connection?

@OffGridGarageAustralia 2 жыл бұрын

I have not heard or seen anyone using this on all connections.

@christophec252 2 жыл бұрын

@@OffGridGarageAustralia you shown the No Oxid paste in a previous video? I think we need to use on all electric connections?

@Fergo101 2 жыл бұрын

Andy, your temps are a bit concerning around fuses. I have large HRC fuses on my battery and never see over 40degrees - and i go over 110amps continuously for periods during the day.

@OffGridGarageAustralia 2 жыл бұрын

You might be in a different climate? If you ambient temperature is already 40°C, the fuse will be a lot hotter already.

@Fergo101 2 жыл бұрын

@@OffGridGarageAustralia similar to you. I’m in NSW. The fuse area does get to about ~7-10c hotter than ambient.

@spoonwzd 2 жыл бұрын

My new Multplus II fans make the same noise

@MiH1IT 2 жыл бұрын

Something is not just vibrating, but arcing in the circuit breaker. The light is visible for a moment at 15:25 on its left side

@OffGridGarageAustralia 2 жыл бұрын

No arc, that's the gap in the front panel and the outside light coming through 😉

@MiH1IT 2 жыл бұрын

@@OffGridGarageAustralia Yeah, you are right, but it looked scary :D

@IPad-OG 2 жыл бұрын

Question, you show a 100 amp circuit breaker set to 90 amps? But the next moment you draw over 110 amps for several minutes. Why didn’t the breaker trip? What am I missing here?

@igorybema 2 жыл бұрын

Solar input from the solar chargers on the main bus bar added to the available capacity

@IPad-OG 2 жыл бұрын

@@igorybema That would indeed explain why the inverter can take more. But I believe he was showing the amps the battery was supplying according to the bms. Could be that the values of the bms is a bit off.

@OffGridGarageAustralia 2 жыл бұрын

That is only one part why the breaker didn't trip, You also need to look at the trip curve of such breakers. They can handle over current for a while until the thermal trip mechanism triggers. If there is a sharp increase in current, the magnetic mechanism trips the breaker. This is exactly the same behaviour as with normal MCBs in you house. BTW, the 100A NAL fuse didn't blow inside the battery box either even going over by 10%

@igorybema 2 жыл бұрын

@@OffGridGarageAustralia One thing I don't understand. During your tests it seems that the sun is shining on the PV panels. When you first enable the pool pump there is still about 2kW PV input from which 1kW goes to the pull pump. But as soon as you include the car charger, the PV input drops to 100Watt. From the video it still look sunshine outside.

@superpierrot 2 жыл бұрын

💚🐸💚

@BlakeConnor Ай бұрын

How did you turn on the pool pump???

@OffGridGarageAustralia Ай бұрын

You can use a Shelly or a Sonoff to turn it on remotely.

@naomihalliday-cox6614 2 жыл бұрын

Will you have 3 sets of batteries when you finish?

@OffGridGarageAustralia 2 жыл бұрын

Yes, that is the plan.

@89Foxy 2 жыл бұрын

Hi, was hast du für ein Querschnitt für den AC IN und AC Out genommen ?

@OffGridGarageAustralia 2 жыл бұрын

AC in ist 2.5mm und AC1 out ist 6mm.

@89Foxy 2 жыл бұрын

@@OffGridGarageAustralia ok dann bin ich mit meinen 3x10mm2 gut bedient danke für die Antwort :)

@johannes3-16 4 ай бұрын

100 amp circuit breaker sound connection problem

@panospapadimitriou3498 8 ай бұрын

dear andy... i searched today for the multiplus 2 48 5000 and it has no extra surge capability anywhere mentioned.... and the multiplus 2 3000 has 5500 mentioned . if 5000 is the limit then it is a bit low for its cost!!!! i know 5000.48 is a nice 50hz gentle beast but wouldnt it good if they installed any surge mode ? one more pcb with some coper and some capacitors .BUt i hope it has and i m not aware of !!

@pbasista 2 жыл бұрын

At 17:50 you mention a "35 mm link" within your battery. Do you mean that there is a 35 mm2 copper conductor between some of the cells? Is it sufficient to carry a current of more than 100 A? Your main battery conductors use a 70mm2 copper cables which should be fine for ~200 A. All of your battery cells are in series, if I understand correctly. So the current between the individual cells would be the same as the current in your main battery conductors.

@OffGridGarageAustralia 2 жыл бұрын

This is in the old battery. It's the only 35mm cable ling at the end connecting one row to the other. This battery was fused at 100A so 35mm was OK for that. The inverter never pulled more than 65A anyway. That was max load I could connect to. The new batteries in the shelf will have 35mm cable again to connect to the BMS and breaker. The breakers for each bank is set to 80A. This 35mm cable is rated for 120A so there is still a bit of margin.

@awesomusmaximus3766 2 жыл бұрын

I have never overheated my Quattro monster the fans on that are powerful my shunts get hot though

@OffGridGarageAustralia 2 жыл бұрын

How often do you get 35°C? 😁

@awesomusmaximus3766 2 жыл бұрын

@@OffGridGarageAustralia Pretty often lately had a few 40's too

@olavilentso 2 жыл бұрын

There is at least one video on KZfaq describing a similar way of connecting Victron inverters. kzfaq.info/get/bejne/pMmYfst-xLrciZ8.html, skip to about 09:00 minute where the owner explains how he has put 2 Quattro 5000 inverters in series without mentioning any issue about it. Further discussion can be found here: community.victronenergy.com/questions/17221/multiplus-modes-of-operation-with-multiple-units-p.html

@elmer665544 2 жыл бұрын

You need to wear a silicone wedding ring instead of your metal ring when you work with electricity in tight spaces. Eventually I learned to wear a silicone ring at work

@OffGridGarageAustralia 2 жыл бұрын

I'm not working on live systems.

@elmer665544 2 жыл бұрын

I understand, I was also very aware at work but eventually you may stick your fingers into a live system. Probably not but I did it “just in case”

@elmer665544 2 жыл бұрын

I understand, I was also very aware at work but eventually you may stick your fingers into a live system. Probably not but I did it “just in case” .

@OffGridGarageAustralia 2 жыл бұрын

@@elmer665544 I have very much respect of this system I build there and would not work in this top bus bar section under live conditions. Hence I was so picky with the acrylic cover. I have no problem with working on 48V battery when there is enough space around it but up there... that's offline work only

@clint965 2 жыл бұрын

der 48/5000 hat doch eine nenndauerleistung von 4000W und nicht 5000W?

@OffGridGarageAustralia 2 жыл бұрын

Ja, das ist richtig.

@brian1395 2 жыл бұрын

hey i just got some great new info from QSO 304ah batts. i have one that just stripped out easy so i ask can it be tapped larger safely. they said yes from m6 to m8 max. they also said don't go deeper. this was all said by amy. also they have the 304 with laser welded with studs. real sexxy.

@OffGridGarageAustralia 2 жыл бұрын

Thanks for sharing. I have 16 of the laser welded 304Ah cells incoming for the new shelf. I will just use a 1/4" UNC imperial set screw for my stripped terminal. No re-threading or Helicoil needed.