January 17, 20224 yr @Scubadude, i have my geysers, washing machine, tumble dryer, dish washer, pool pump on non essentials ( between ct clamp and inverter ) and all works well, my total load so far this month is about 400 kWh and bought from grid is 20 kWh, this is with the Limit To Load NOT ticked, that is 95% self consumption. Think we should leave it as the difference between Deye and Sunsynk and I don't profess to know anything about Deye
January 17, 20224 yr 1 hour ago, Tariq said: @Scubadude, i have my geysers, washing machine, tumble dryer, dish washer, pool pump on non essentials ( between ct clamp and inverter ) and all works well, my total load so far this month is about 400 kWh and bought from grid is 20 kWh, this is with the Limit To Load NOT ticked, that is 95% self consumption. Think we should leave it as the difference between Deye and Sunsynk and I don't profess to know anything about Deye You may have a good point. Deye makes it simple "Zero Export to CT" cannot be misinterpreted. Apologies if I raised your blood pressure. Edited January 17, 20224 yr by Scubadude
January 18, 20224 yr Hi Does anyone know if there is a wireless Ct clamp for the Sunsync inverter? My Energi do a wireless version. Not sure if compatible. It’s just hardwiring the install is going to be difficult due to location. thanks
January 18, 20224 yr 6 hours ago, Daz1172 said: Hi Does anyone know if there is a wireless Ct clamp for the Sunsync inverter? My Energi do a wireless version. Not sure if compatible. It’s just hardwiring the install is going to be difficult due to location. thanks wireless would never work as the signal cant travel fast enough to do the precise work required of the CT. You can extent the ct coil wire with a Lan cable. Edited January 18, 20224 yr by Nexuss
January 18, 20224 yr 3 hours ago, Nexuss said: wireless would never work as the signal cant travel fast enough to do the precise work required of the CT. You can extent the ct coil wire with a Lan cable. I also saw a video where Keith from Sunsynk said wireless will not work. I used normal flat twin (2.5mm2 x 2 + earth) to extend the wires. My ct is about 25 meter away from the inverter and it also works fine. It might be a bit overkill but it works.
January 18, 20224 yr On 2022/01/18 at 3:43 PM, Nexuss said: wireless would never work as the signal cant travel fast enough to do the precise work required of the CT. On 2022/01/18 at 6:54 PM, Gerrie said: I also saw a video where Keith from Sunsynk said wireless will not work. In Keith's training video (March '21) he mentions that Sunsynk has a wireless CT in the pipeline, despite the speed issues. Edited January 20, 20224 yr by YellowTapemeasure
January 21, 20224 yr On 2022/01/16 at 7:03 PM, CapeTown said: Keen to see answer, as I essentially just asked the same. No idea why this simple bit of info is glaringly missing from the SunSynk manual. Issue has been sorted, there was a relay on the essential DB that was the problem. CT coil has to point towards the DB and inverter. On the 5kw, ins 3 and 4 are used for the coil. System is running well. Edited January 21, 20224 yr by HennieB84
February 8, 20224 yr A few pages ago someone said the arrow on the CT must point towards the grid... on this page I'm hearing towards the inverter. Shouldn't it just point in the direction of normal incoming power flow (I.e. from the grid towards the DB and inverter if installed anywhere just after the utility power cable enters the building)? Also, I notice people referring to direction but giving no context as to where you have placed it in your example. Thanks a ton!
March 16, 20224 yr I have a problem at a client site with a 8KW Sunsync where the CT coil only display zero Watt on display. It does not display the set trickle 50W setting. It was working well since January. The customer did change settings but it boggles me now that I can’t get the ct coil reading, this is still the older software version that I recall was a bit tricky to set but it did work pretty well up to now, And ct coil is on 5&6, what am I missing could there be issues in software?
June 1, 20224 yr On 2022/01/17 at 6:42 AM, YellowTapemeasure said: If you are not getting Work Mode 1 and 2 screens then you are on a very old version of firmware. Arrange an update ASAP, for all of the inverters. https://www.sunsynk.org/tech-support , hit Inverter Upgrade. Work Mode 1 and 2 are both used for Hybrid or Grid-tied, the one is a timer where you instruct the inverter how it should treat the battery, the other covers things like whether or not you export to grid, grid trickle feed and how it uses solar output. Here are my notes on this: Here is @system32notes: The CT's arrow points towards the grid, but you can confirm by looking at your information screen, if the CT value is mostly negative, your CT is installed the wrong way, flip it around. It is very important to ensure that the battery has comms with the inverter. Check the LibBMS setup screen, if you are getting values from the battery (charge rate, discharge rate, SoC etc.) then it's good, if not, sort out the comms. When I watched a video today on this by Keith from sunsynk he shows the CT coil arrow must point towards the inverter The installer manual is not very good in my view around this
June 1, 20224 yr Easy ... install it any way around - if it shows nagative grid power invert the leads om the inverter. Job done.
June 1, 20224 yr 1 hour ago, SeaSickMama said: When I watched a video today on this by Keith from sunsynk he shows the CT coil arrow must point towards the inverter The installer manual is not very good in my view around this The information using letters K and L as well as the arrow is quite clear for me how it must be installed. From the manual.
June 20, 20224 yr Hi I suspect my CT is not installed correctly. My prepaid meter shows the correct grid usage, but the inverter (and SolarAssistant app) shows the incorrect readings. If you add Grid + Load it equals the correct figure for actual grid usage. In my mind the Grid usage should be = Load - Solar production? At the moment my grid usage readings are only about half of the actual usage. Anyone got a solution to this?
January 18, 20233 yr Hi All, Can somebody explain as to why my CT coil reading is so high on Sunsynk 8KW. Installer says it’s normal but looking though some videos, the watts supposed to match the grid wattage. CT: 30000+ watts
January 19, 20233 yr On 2020/10/20 at 10:57 AM, JustinSchoeman said: Polarity of the CT just affects the sign of the measurement, so it could theoretically have been either way around. SunSynk uses the convention that positive is current flow out of the inverter for loads, so you need to point the arrow towards the grid to work with this convention. @JustinSchoeman @Martinvbiljon the Sunsynk manual specifically says the arrow on the CT has to point towards the inverter. I went and checked and official videos posted by Keith from Sunsynk on their website also says to point towards the inverter. Are you sure yours is pointing toward the grid?
January 19, 20233 yr Deye manual definitely says towards the grid. Perhaps sunsynk swaps the wires to the inverter. Earliest Sunsynk manuals probably had the best solution. Ignore arrows and colours - just clip it on and connect it. Turn everything on, and make sure you are drawing power from the grid. Check the measurement, and if it is negative, swap the wires around...
January 19, 20233 yr 5 hours ago, JustinSchoeman said: Deye manual definitely says towards the grid. Perhaps sunsynk swaps the wires to the inverter. Earliest Sunsynk manuals probably had the best solution. Ignore arrows and colours - just clip it on and connect it. Turn everything on, and make sure you are drawing power from the grid. Check the measurement, and if it is negative, swap the wires around... Solis is also towards the grid. But the negative sign will show if right or wrong.
February 14, 20233 yr HI Justin I see that you have used the split phase setup for you CT coils. Can i use the same setup with a 8.8kva sunsynk installed on a 3 phase supply? Use 2 ct's from different phases into the inverter so i can get load measurements from 2 phases to distribute sola to non essential loads? Thank you
February 17, 20233 yr Hi All So in my infinite wisdom managed to damage my CT coil that came with my Deye Inverter (don't ask how) ... where on earth can I find a replacement clamp ... its 100A/50ma ... all the electronics shops I've tried in Cape Town don't sell them ... the only type I could find is 100A/1v which I cannot tell if it is compatible.
February 23, 20233 yr On 2020/09/28 at 5:08 PM, Harry Khiani said: The ct coils use 3456 ports . And please bear in mind that the arrows on the CT sensors should face the grid I use a split phase so I guess that's why I need to use 4 ports Hi Harry, is there a reason the arrow should face the grid when Kenith with Sunsynk videos says that it should face the DB board. "It should follow the flow of the current" Please give some clarity here?
February 23, 20233 yr On 2023/02/17 at 12:00 PM, Jens said: Hi All So in my infinite wisdom managed to damage my CT coil that came with my Deye Inverter (don't ask how) ... where on earth can I find a replacement clamp ... its 100A/50ma ... all the electronics shops I've tried in Cape Town don't sell them ... the only type I could find is 100A/1v which I cannot tell if it is compatible. Search for the Solis CT. Not sure about the 100A/1V spec as a CT spec is A/A. The normal Solis is also 100A primary. Not sure about the secondary.
February 23, 20233 yr 4 minutes ago, Scorp007 said: Search for the Solis CT. Not sure about the 100A/1V spec as a CT spec is A/A. The normal Solis is also 100A primary. Not sure about the secondary. @Jens https://www.robotics.org.za/SCT013-100A-50MA Just check the spec sheet for the coil ratio and adjust it on the inverter settings to match. Edited February 23, 20233 yr by WannabeSolarSparky
February 23, 20233 yr 3 minutes ago, WannabeSolarSparky said: @Jens https://www.robotics.org.za/SCT013-100A-50MA Just check the spec sheet for the coil ratio and adjust it on the inverter settings to match. A very good point. On the Solis you can adjust the ratio from 100-3000/1
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