Jump to content

Delta9

Members
  • Posts

    88
  • Joined

  • Last visited

  • Days Won

    1

Everything posted by Delta9

  1. Does anybody know which Victron dealer is participating in the buy 2 get one free promo? From the Goggling I have done I can only find dealers offing a discount on the 3rd unit - not buy 2 get one free. Any heads up appreciated.
  2. 16S21P !! Not so sure about the 21P bit though. No visibility on each and every cell. How is the BMS handling this ?
  3. interesting. in his vid he very clearly said no solar through the aux port but here you doing it. dont know what to think of the info out there on these inverters
  4. Please clarify what you mean. Are you saying that you can power something through the aux port from your solar panels ? The information I posted was taken from a You Tube video made by Keith. He clearly stated that the Aux port does not get power form panels. Maybe he meant something else - his videos have a ....certain rambling style to them.
  5. it does indeed "seem" like a S.S can AC couple on its Aux port (gen power in port) However its quite hard to understand what Keith is trying to say - its a muddled convoluted conversation going on in this video. If you listen hard and maybe play it a few times, it seems like he is trying to say a grid tied inverter can be connected to a sunsynk inverter that has batteries attached to it via the AUX port (gen in port) of that sunsynk inverter with batteries attached to it and that same inverter with batteries attached to it can supply power to the circuits in the DB board at the same time as the other grid tied inverter because of the CT from the Sunsnyk that has the batteries attached to it. I wish Sunsynk would consider upping thier game and doing some professional video's - get someone who can explain it all clearly to present the concepts
  6. thats an interesting idea - use another inverter running on battery to deliver AC to the aux port of the main sunsynk system when the grid is down. If the main sunsynk is running without batteries and gets an AC feed on its AUX feed from another inverter running on batteries, then the main sunsynk is getting a 50 Hz signal and should be able to lock to that 50 Hz signal and be able to produce energy from its connected panels - while the grid is down. I am sure there are lots of reasons why this wont work........although i dont know what these reasons may be. anyone offer some thoughts on the above scenario?
  7. In my particular application I want to run water pumps - as many as I can manage as i have an endless need for water. So its all dependant on how many panels I can get up. AC coupled is the most efficient - until the grid goes down and that is more frequent then we would like (remote area). So the Victron system with Fronius works well for this and is a known thing - and those big Quattro's can certainly handle the load (3ph setup). However there are lots of extras one needs with Victron and this adds up fast. Sunsynk look to be an economical answer - if they can do the job. HF transformer Vs Victrons Toroidal transformer, Victron has Fronius setup in it menus etc. With Sunsynk it would appear that the S.S inverter can supply non essential loads from the main DB - but this would be DC coupled - ie, DC from Solar Panels/batteries to the non essential loads via the main DB (using the current transformer that comes with the S.S). I see lots of niggles here on the forum about the S.S not supplying loads correctly from solar so not sure if S.S can supply lots of power from a big panel setup to the non essential loads via the main DB ? Victron can do it with Fronius no issues at all but at great cost. So wondering which way to go with the whole system. I feel like Victron is tried and true and a known "thing" and Sunsynk "may" be able to do it but its a bit of an unknown qty at this time. Thoughts?
  8. Hi guys, Wondering if the Sunsynk Inverters can be AC coupled to the inverter OUTPUT - the same as the Victron inverters can be AC coupled to the output of the Victron's using a Fronius AC inverter? (even has the Fronius inverters in the victron menu system) I think one could AC couple on the input side of the Sunsynk just fine - however the issue then is that as soon as the grid goes down there is no 50Hz reference available to the Fronius AC inverter so it stops its production. With Victron there is the infamous 1:1 rule about how this works and also a certain amount of battery required. I have never heard of anything like this mentioned for the Sunsynk so presume this cant be done on the sunsynk range of inverters. However, what do I know? hence asking here.
  9. That's interesting - how do you find the Esybox? I have just bought an Esybox mini, a Dtron3 submersible and 4 x Esybox diver submersibles to try out. The Esybox Mini and the Esybox divers have a VFD onboard, the Dtron 3 has no VFD. I bought those 3 types of pumps from DAB to see what works well among them. I am also looking at Grundfos pumps because they have a nice VFD for thier pumps with some nice features, but that's the next experiment after the DAB's. All of these need to be run via an electrical inverter - either battery based or AC coupled hence asking this question. I know Victron is a safe way to go, just $$$. The Sunsynk alternative offers good value - if it all works OK.
  10. Well i've never used one so no hard experience with them, but i thought that even with a slow start up the motor still has a surge, just a lot smaller. In your experience how much of a load would a 5.5kW water pump motor using a VFD put on the inverter during pump start up and will the sunsynk handle this ?
  11. Wondering if a HF Sunsynk can start a pump motor? Lets assume a 12kW 3Ph sunsynk and a 5.5kW 3 Ph motor started on a VFD. The sunsynk can surge to twice its load for 10s (or so says the manual). Start up load on a 5.5k 3 phase motor on a VFD should be limited to about 2.5 to 3 times the motor rating i think. Lets assume it spikes to 3 times - so thats about 17kW for a few seconds. I would have thought it would take 2 x 12kW 3Ph sunsynks in parallel to safely do this but i have no idea how HF inverters cope with starting motors. Then there is the added complication of not being to add a genset to a paralleled setup of sunsynks. maybe Victron is the way to go with its beefy toroidal transformer ?
  12. Sounds like a good plan. I am also looking at Jinko. Did you import your inverter or is there an outlet for them up there ?
  13. Sounds like the DIY type to me its troubling that the Sunsynk is giving you this problem though. Will be following your progress.
  14. Hi Halcyon, I would tend to believe the RMS meter that is reading the amps from the mains supply. There seems to be lots of little niggles with the Sunsynk hybrids. I hope you update this thread if you find an answer.
  15. Yes I have been grappling with the same issue and came to the same conclusions. Great that you have confirmed it with Deye. So what is your optimal panel config going to be ? Which panel and how are you going to configure it ?
  16. I dont know how this works with Sunsynk but with a Victron system this would NOT be the case. If one out of the three inverters goes down (using 3 single phase inverters to make a 3 phase system) for whatever reason then the whole system is down. That is the thing I dont like about Victron. I can understand if one of the three single inverters goes down then the system is down, but if you parallel 2 single phase inverters per phase and then have 3 of these together to make a 3 Ph system if any one of the 6 inverters goes down the whole system is down. I dont like a system design having 6 inverters - more chances of something going wrong. That's why the idea of 3 x 16kW sunsynk single phase inverters linked together to make a 3 phase system is appealing. Lots of power but lower number of inverters. The same thing is possible with Victron 15kVa inverters - lots of power from just 3 inverters linked together but with Victron so many other parts have to be added to get close to what Sunsynk offer. Sunsynk does look to be the way forward in terms of cost but it remains to be seen how the durability is. What is the standby power usage on the Sunsynk 16kW inverter ? On the Victron 15kVa inverter its around 150w standby power consumption - thats a lot of power over 24 hours.
  17. Like many others I am finding the setup of the Sunsynk a bit confusing. This post by system32 explains his settings for his Sunsynk 8K on the Battery Setup and System Mode screens and is easy to follow;
  18. Which is quite a nice way of doing it really. Better if the gen set auto starts based on a set of conditions but if it doesn't and one has to start it manually how nice is it for the inverter to disconnect the genset and restore supply via grid without any intervention from the owner/operator. This further infers that you dont have to turn everything off, stop the generator, use a change over switch to pick which incoming supply to use (grid in this case once it has has returned and is able to supply power to the inverter) and then turn everything back on. Been there, done that. So last century ! These Sunsynk inverters keep getting nicer and nicer the more I read about them. I am very happy with my Victron system but these newer Hybrids have functionality that a quattro just does not have - without adding lots of bells and whistles at significant cost.
  19. Hi Leshen, What I was referring to was that in reading many posts about the Hubble batteries some folks seem to get rapid response and thier issue resolved fast and others post that they cant even get a response from Hubble. The other thing to remember is that people who are running without issue will not take the time to post to say how well its all going. However people who have an issue are very very quick to jump onto forums/social media etc to bitch and moan about the problem. So there is that. Having said that, there seem to be lots of problems with Hubble cells getting out of balance. We dont know what percentage of cells this is compared to cells out there working though. They may have 50,000 cells out there working great and only 15 of them are having issues. Its hard to know what to think. What I can say is when I put my hard earned money down on the table I want backup and support - pronto. Thats what I am paying for after all. So lets give Hubble the benefit of the doubt and say that less then 1% of cells are having issues - fair enough. But how do they account for not being FAST on the support side? I speak from experience to some degree. I had a business installing systems for a wide variety of clients from banks and huge mining houses to farmers. If someone called me on Saturday night to say they were down, I was on the road Sunday morning heading to the site. And that site was often over 1000Klms away (each way). Now I know not many see it this way but the customer has choices - many many choices to choose from and if they make the decision to pick YOUR brand then that is GOLD. In my view I took that fact to heart and my company gave our clients everything we could offer and all the resources we had to keep them satisfied. We did very well. Our business grew to be one of the biggest in our field in the country I am in and it was ALL word of mouth - satisfied clients recommending us to thier friends/family/business acquaintances. That era is over now and tech has moved on so tht business has died a natural death but in my view it SHOULD BE (but sadly not something you come across that often in these times) how small entrepreneurs who run small business think and act. If they do this they stand out far above the others because not many seem to get this. Even if the odd one gets it, they dont really put too much effort to keep this sort of service going. I was at it for 15 years - it was gruelling and tiring and the fun went out of it after the first year but we kept it up and we grew and grew - simply because we had a good product with excellent support and back up. Having a good product alone is not enough. Having good support on a dodgy product does not cut it either. You need both. Get this right and grow rich. Bottom line - I looked long and hard at Hubble but in the end decided to give it a miss. I felt uncomfortable with that chemistry unless I could install batteries in an out building/ garage etc. I see someone else here on the forum also stated something else very important - its very hard on folks who are not in SA to have confidence in this product with so many stories of issues with the cells. The cost to export from RSA, import to another country and then have to return the cells to RSA for repair is massive - so there is that to figure into all this. Much easier for you guys in RSA to deal with faulty cells/batteries then for us souls North of you. All in all I would feel much safer putting my cash into Freedomwon or Blue Nova. A hefty premium yes, but I've not heard of any horror stories with Freedomwon. My 2c (and i have no dog in this fight - just the way I see it)
  20. Well I spent my Easter reading power forum up and down and left and right. This forum has by far the most traffic to do with Sunsynk Inverters. I thought I would jot down in one place some information I have come across on the forum to do with Sunsynk inverters in general and the 12Kw 3Ph in particular - it may save someone else who is looking for some info on this inverter spending days reading the forum to try to ferret this information out. In no particular order; * - Sunsynk is manufactured by Deye, who also makes Fusion, Inge and SolArk (in the U.S.). * - Sunsynk and Deye are the SAME inverter - just different firmware on each respective branded inverter. A number of installers prefer the Sunsynk firmware/interface. Sunsynk have an Englishman behind the brand (actually the inventor of these inverters that Deye bought the IP for) so support is in English rather then engrish. May or may not be a big deal to you (unless you are fluent in Cantonese). Someone reported in the forums that Sunsynk will soon have its own proprietary monitoring and control system - if anyone knows about that can they add here ? * - the 12Kw 3 Ph can only work with a 3 Phase genset. A single phase Genset cannot be connected to this inverter to try to get power into 1 Ph so that you can use that 1 Ph. * - the 12Kw 3 Ph can only output a total of 12Kw overall (ie across 3 Phases) but CAN output 6Kw per phase (on grid) - but only up to a total of 12Kw. So for example one could draw 6Kw on the red phase and 4Kw on the blue phase and it would work OK. (however I seem to remember reading somewhere that the phase imbalance can only be for 50% of the total output - if someone knows more about this perhaps they could chime in) **** See this video - Keith says that *OFF GRID* that each phase can draw 6kW for a total of 18kW and that *ON Grid* you can have a peak power demand of 12kW from any given phase as the inverter will draw from battery and grid to support that peak demand. * - Each MPPT is half of the total Max DC input power - so in the case of the 12Kw 3 Ph it would be 7800W per MPPT to make the combined total of 15600W * - the sweet spot of the 12Kw 3 Ph MPPT is 550v with the range for the MPPT being 200V - 650V * - Keith mentions in his understanding MPPT Youtube video that the most important figure is VOLTAGE - the 12Kw 3 Ph inverter has an 800V max PV input Voltage - however dont go anywhere near 800V max with a string of panels in series as on cold mornings you could go over the 800V if you are close to 800V in your configured string of panels. The total number of Watts (KWp) in a string of panels on the MPPT is not that important, or less so anyway. Ie, one can over panel in wattage and be OK. The advantage of over panelling is that there is more energy production earlier in the day and later in the day. At peak production (midday?) the MPPT will just clip the extra power being produced. Over panelling will help on overcast days. He says there may not be an economical advantage to this but if money is not the issue then this can work (environments with less sun hours per day? in the rainy season when many overcast days are the norm?) * - The aux port draws its power from the battery or grid - NOT the solar panels. If the grid is down then the aux port supplies its load from batteries. But only up to 50% max rating of the inverter. * - Further, forum user JpPaulKruger reports this about the Aux port when using the Aux port as the Generator input port to the system ......................... ........................"nice thing about the AUX port is that you have different charge settings for when GRID is the input and different settings for when GEN is the input. And the SunSynk connects the GEN load slowly. And not all at once, making the HZ more stable on the gen output"............. * - This video on you tube explains things very clearly and is a great place to start in understanding this system and its setup Probably more but that's it for now. I will keep adding to this as I come across more. Keith puts out lots of You tube videos so lots of info there if you have the time to watch them all.
  21. This is true. I installed a Victron 5Kva Quattro in 2009 and it has never once missed a beat up to and including today in 2022. Not bad going. The Sunsynk 3 Ph inverters seem to be a nice solution but what will the durability turn out to be? No one knows at this point. However going by this forum which has the most Sunsynk threads by far I have not seen a thread with a Sunsynk down title to the thread. They seem to be chugging along OK at this point. I suppose we could get bitten by capacitors that dry out at year 7 or something similar. At least with Victron you know they are using quality parts. Sunsynk? lets hope so.
  22. Like a second hand car, you just dont know how the previous owner used it or cared for it. 2nd life batteries sound well and good and the rationale behind them sounds fine - except how hard were these batteries used? I've got AGM's that are now 2 months away from 7 years old. My system is only used as a big UPS - keeps everything going while we have a cut to supply or a load shedding event (which thankfully seem few these days). So my AGM's dont get that much of a work out - and as soon as power is restored the Victron inverter charges them right back up so they never sit in a partial state of charge. The treatment my AGM's get is about as good as it gets for AGM batteries in terms of getting a long life out of them. At 7 years there cant be many years ahead for them so I wouldnt sell them second hand but if I did, these AGM's have lived a charmed life - compared to AGM's out there that get cycled daily to 30%-40% DOD and sit for a week before being charged back up. If both sets of batteries from the description above were sat side by side to each other and offered for sale, which would you prefer to buy? So the thing is, with 2nd life batteries how do we know how the batteries were treated/cycled ? Seems like a roll of the dice at best.
  23. Strange how some people get the Golden support treatment and yet others report that Hubble wont even respond to them. I wonder what is going on here ? I was going to buy some Hubble Batteries but the chemistry turned me off them. I dont feel comfortable putting anything other then LiFePO4 or LTO inside the house. Glad I didn't go this way reading some of the trouble people are having.
×
×
  • Create New...