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Passthrough on Sunsynk Hybrid Inverter

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56 minutes ago, Syd Kaye said:

What happens if more than 5KW is being drawn from the grid because of the amount recharging the battery 

He was asking about the loud output breaker.

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  • Hi Louis.  This is not correct. The 8kw and 5kw limitation is purely a DC to AC limitation. The passthrough function is AC to AC so on the essential side, when the grid is available, the 5kw can

  • Hi Tariq. If you watch the video. Keith is saying that there are users out there that are going beyond the max passthrough current of 50A and 35A which in turn are damaging the relays. 

  • your information is correct, I have a 5 kW Sunsynk, with grid available I can go up to 8 kW, so far I have pushed 7.65 kW, I have the dishwasher, washing machine, tumble dryer, pool pump on non-essent

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Hi everyone, so this happened to me today, and I was under the impression the 8kW Deye could allow for at least double the power draw as passthrough if grid was on - and yet it went into AC overload and rebooted at just 11kW

Is that normal? Or is there a setting wrong?

image.png.29c090db34b3f67d959d10f2f19bb18f.png

This concerns me, because we are making more than enough solar power, and we are also sitting with full SOC on our batteries (which are set to output 160A) and we are NOT load shedding. So why after a peak output of just 10.92kW would the system overload and shutdown?
 

More data:
image.png.4e6b32e4e5c7af6d2de47e7d0fa02a15.png

If my panels are generating 6.5kW and my battery is outputting 1.71kW (even though my battery can do much more than that), I understand that is at the peak output of the inverter – but if there is additional demand, the Grid should provide it – and it did with another 2.92kW… so why did the system shutdown/trip??

https://lifetide.co.za/data-sheets/Deye-8kW-Datasheet.pdf according to the data sheet… the system should even be able to handle 2x the total rated powed when OFF-GRID for 10 seconds. We were on-grid, so why did it shutdown at 10.9kW ? I would have expected it to go at least to 12kW-14kW before tripping.

Or do I have the specs wrong?? Or settings wrong?

 

Edited by Tag11

1 hour ago, P1000 said:

image.png.337d321bd96567c297173a3cc508abd6.png

That would be the reason. If the output exceeds 50A, it will cut out.

So is this a fixed total? 12kW

Or is it the AC passthrough of 50A in ADDITION to what the inverter/battery/pv offer which is 8kW on their own?

I thought I had the capacity to go up to 20kW total draw if all power sources were available.

Thanks for the replies.

19 minutes ago, abd7 said:

Also the sunsynk app does not update values often enough to see spikes of a few seconds.. Solar assistant is great for that 

thanks, so you reckon we went over 12kW and before it could write the data it shut itself down?

I must say, I'm a bit disappointed... I figured passthrough would allow me much more flexibility in terms of peak demand which I was happy to get from the grid. I'll have to re-arrange some things now to avoid this in future.

52 minutes ago, Tag11 said:

So is this a fixed total? 12kW

Or is it the AC passthrough of 50A in ADDITION to what the inverter/battery/pv offer which is 8kW on their own?

I thought I had the capacity to go up to 20kW total draw if all power sources were available.

Thanks for the replies.

Definitely not 20kw... It's not in addition, it's 12kw. Not sure how pv / DC features in there though. Someone else can clarify what the absolute max is with full pv and battery to supplement 

Edited by abd7

48 minutes ago, Tag11 said:

thanks, so you reckon we went over 12kW and before it could write the data it shut itself down?

I must say, I'm a bit disappointed... I figured passthrough would allow me much more flexibility in terms of peak demand which I was happy to get from the grid. I'll have to re-arrange some things now to avoid this in future.

Yeah sounds like it, the sunsynk app doesn't have that fine gained monitoring capability , I think it's every minute at the quickest. 

I wound def invest in solar assistant for this feature alone, apart from the much better interface and ease of use. 

The absolute max is 50A on the essential/load circuit. 50A x 230V is 11500w nominal. 
 

Best would be to get a bigger inverter if your needs exceed this limitation. 

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