September 30, 20223 yr On 2022/01/28 at 8:17 AM, JayN said: Hi iMercury, The 3 Phase Sunsynk is great. I have the whole house connected to the inverter. 2 Geysers (3kw and 4kw), an oven (2kw) pool pump (0.75kw). Stove is gas. The loads are reasonably balanced, except the kettle (1.5kw), microwave (2kw), geyser (3kw) and a few household plugs (0.5kw) is on the same phase. The grid comes in when the battery or panels cannot deliver. There was a night in Jan that I had to put on both geysers at the same time - this does not usually happen. My SO decided to also put the kettle on and warm up something to eat in the microwave. Power draw on one of the phases must have been slightly more than 7kw, and across the phases it would have gone past 12kw (probably closer to 13kw). I would have thought that the pass through would have kicked in. Instead the inverter cut out for about a minute or less - all power went off and it reset. When it came back all was well, microwave and kettle automatically goes off. This is just my experience. It was an odd set of circumstances (a perfect storm). Was this during loadshedding or not?
September 30, 20223 yr Author 13 minutes ago, Milan188 said: Was this during loadshedding or not? Hi ... not during load shedding. When the grid goes down during load shedding, none of the major loads come on. Geysers and pool pump are smartly controlled via wifi switches. The only major loads which we control is the microwave, kettle, iron and oven - that we make sure we don't put on during load shedding. I have 5kwh battery at 1c, and I try not to push this beyond 0.5c - 0.75c. My battery can therefore only deliver around around 4kw peak during load shedding - if that happens at the start I will not see out the 2 hours of load shedding. I definitely need additional battery storage. Edited September 30, 20223 yr by JayN
September 30, 20223 yr 1 minute ago, JayN said: Hi ... not during load shedding. When the grid goes down during load shedding, none of the major loads come on. Geysers and pool pump are smartly controlled via wifi switches. The only major loads which we control is the microwave, kettle, iron and oven - that we make sure we don't put on during load shedding. I have 5kwh battery at 1c, and I try not to push this beyond 0.5c - 0.75c. My battery can therefore only deliver around around 4kw during at peak during load shedding - if that happens I will not see out the 2 hours of load shedding if it happens at the start of load shedding. I'm thinking of doing a similar set up, So when there's no loadshedding my load is limited to 6kw on each phase if I install this inverter? So I can't use more than 18kw in total when there is no loadshedding?
September 30, 20223 yr On 2022/06/05 at 4:38 PM, Pumba said: Installed 6 what? Surely you mean 6kilo what 🙂
September 30, 20223 yr Author 19 minutes ago, Milan188 said: I'm thinking of doing a similar set up, So when there's no loadshedding my load is limited to 6kw on each phase if I install this inverter? So I can't use more than 18kw in total when there is no loadshedding? Hi ... nope. This is a 12kw inverter. You can push 6kw on a phase load shedding or not. You will be left with 6kw for the other two phases ... i.e. 3kw+3kw or 4kw+2kw or any combination which adds up the remaining 6kw. When there is no load shedding, there is a pass through, and I'm not sure how much that can go. The brochures says 100% unbalanced load, but I'm not sure about that. I should reach out to Keith Gouch and clarify. Edited September 30, 20223 yr by JayN
September 30, 20223 yr Max Continuous AC Pass-through(A): 50A So you should be able to power 11.5kW per phase when grid is on. But the inverter cannot contribute more than 6kW per phase or 12kW total.
September 30, 20223 yr Author 1 minute ago, P1000 said: Max Continuous AC Pass-through(A): 50A So you should be able to power 11.5kW per phase when grid is on. But the inverter cannot contribute more than 6kW per phase or 12kW total. Thanks ... that simplifies it.
September 30, 20223 yr 1 hour ago, P1000 said: Max Continuous AC Pass-through(A): 50A So you should be able to power 11.5kW per phase when grid is on. But the inverter cannot contribute more than 6kW per phase or 12kW total. Thank you. And I assume that this applies only to items connected as essentials. i.e. I can pull as many KW as I want on non-essentials - please correct me if I am wrong.
October 17, 20223 yr Author Cool ... Cudub have just come back and added more panels for me. I now have 19 x 545w panels - three strings, two of which are in parallel. Roof space was an issue, although in hindsight I could have squeezed in 3 more panels. I have more solar power than I need. Hoping to upgrade my batteries next year. I now draw only 10kwh per day from the grid on average - total daily consumption is around 35kwh. I added the panels before the batteries, because I have a Hubble and I want to change that to something else. Also added a few aircons at home ... and now day time cooling and geyser heating is through solar. Edited October 17, 20223 yr by JayN
October 28, 20223 yr On 2022/09/30 at 9:00 AM, JayN said: Hi ... nope. This is a 12kw inverter. You can push 6kw on a phase load shedding or not. You will be left with 6kw for the other two phases ... i.e. 3kw+3kw or 4kw+2kw or any combination which adds up the remaining 6kw. When there is no load shedding, there is a pass through, and I'm not sure how much that can go. The brochures says 100% unbalanced load, but I'm not sure about that. I should reach out to Keith Gouch and clarify. This video might clarify some things
October 28, 20223 yr Finally have my system installed. Thanks for this discussion. Not many discussions on three phase setups out there so this was very valuable.
April 25, 20233 yr On 2022/09/30 at 9:20 AM, P1000 said: Max Continuous AC Pass-through(A): 50A So you should be able to power 11.5kW per phase when grid is on. But the inverter cannot contribute more than 6kW per phase or 12kW total. Resurrecting an old thread here but can anyone confirm from experience that this does work? Is that 50A pass-through per phase or in total? Thanks! edit: just watched the video above and it covers this question nicely Edited April 25, 20233 yr by Snapper
April 29, 20233 yr Hi everbody I,m new to this forum and busy installing my first 12 kw sunsynk inverter. 1. What happens if you put all your phases on the back up port straight away? is there power on them, with the grid on? 2.do you have to bridge the N and the NE or use one of this bridging devises? What happens when you use more than 6 kw in back up mode on one phase? Is there a good installer in the Paarl area which is knowledgeable with this inverters? advice would be appreciate cheers
April 29, 20233 yr 14 minutes ago, stefankarl said: Hi everbody I,m new to this forum and busy installing my first 12 kw sunsynk inverter. 1. What happens if you put all your phases on the back up port straight away? is there power on them, with the grid on? 2.do you have to bridge the N and the NE or use one of this bridging devises? What happens when you use more than 6 kw in back up mode on one phase? 1. You can set the smart load/Aux to come on at different battery levels or only with the grid. 2. Bridge it but don't tell anyone. 3. Over 6kW per phase or 12kW in total, on battery: inverter trips
May 21, 20233 yr On 2023/04/29 at 2:02 PM, stefankarl said: Hi everbody I,m new to this forum and busy installing my first 12 kw sunsynk inverter. 1. What happens if you put all your phases on the back up port straight away? is there power on them, with the grid on? 2.do you have to bridge the N and the NE or use one of this bridging devises? What happens when you use more than 6 kw in back up mode on one phase? Is there a good installer in the Paarl area which is knowledgeable with this inverters? advice would be appreciate cheers 1. What i did, i put my whole house on backup, except 3 main consumers: the oven (up to 3.3kw), the induction stove (up to 4.5kw if on one phase) wich are each on a separate phase, and the water heater (2kw geyser) on aux, which starts hating the water after the Pytes batteries are at 95%. 3. If you are also Grid-Tied you can go over 6kw per phase, up to 10kw. Sunsynk/Deye SG04LP3 inverters 5-12kw, all support 45A AC passthrough.
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