Not sure if you solved the original query?
Suggested meter placement to eliminate errors from/caused by the inverter.

1 hour ago, Scorp007 said:

Derek's graphic does not show the CT?

So I just watched a video and if I tick the box priority load then the ct coil will show up on the graph including the house symbol. But then I will be feeding my non essentials with the battery power? 
 

maybe I need to keep the grid trickle box unticked and with a value of 0 because In actual fact I don’t need grid to help my batteries supply my essentials. I would only need this when I have pv installed and want to supply my geyser and so on with power produced by panels. 

12 minutes ago, Derek Ramos said:

So I just watched a video and if I tick the box priority load then the ct coil will show up on the graph including the house symbol. But then I will be feeding my non essentials with the battery power? 
 

maybe I need to keep the grid trickle box unticked and with a value of 0 because In actual fact I don’t need grid to help my batteries supply my essentials. I would only need this when I have pv installed and want to supply my geyser and so on with power produced by panels. 

keep the trickle setting as that prevents backfeed to the eskom grid.
Tick the option For Load only, then the battery should not push back to the non-essentials.

Try that

Edited July 20, 20223 yr by WannabeSolarSparky

OK. While working on putting office furniture together it struck me what Sunsynk show as grid is actually what is always being drawn from the grid. The CT reading is the true level of power from the grid. I think so based on the readings from Derek.

12 minutes ago, WannabeSolarSparky said:

keep the trickle setting as that prevents backfeed to the eskom grid.
Tick the option For Load only, then the battery should not push back to the non-essentials.

Try that

It is ticked on load only, and zero export

i don’t think it could feed back to the grid ( or could it)  because I already have a constant grid feed to my non essentials?  Fridge geyser and so on? 

1 hour ago, WannabeSolarSparky said:

Not sure if you solved the original query?
Suggested meter placement to eliminate errors from/caused by the inverter.

The only way that is possible if I do it like this 

11 minutes ago, Scorp007 said:

OK. While working on putting office furniture together it struck me what Sunsynk show as grid is actually what is always being drawn from the grid. The CT reading is the true level of power from the grid. I think so based on the readings from Derek.

That’s why I don’t understand the 1.5amps being drawn from that graph… it doesn’t line up with any other reading 

51 minutes ago, Derek Ramos said:

The only way that is possible if I do it like this 

If you run both live and neutral through the CT, then the net reading should be 0A never mind how much power runs through it...

2 minutes ago, Kalahari Meerkat said:

If you run both live and neutral through the CT, then the net reading should be 0A never mind how much power runs through it...

This is the easy cheat 😀😀😀

52 minutes ago, Kalahari Meerkat said:

If you run both live and neutral through the CT, then the net reading should be 0A never mind how much power runs through it...

I’m not sure I follow, I don’t want to have no readings running through the ct coil, I’m trying to solve the issue of my pre paid meter tripping, it doesn’t trip if I connect it before the ct coil, it trips or shows error -30- if I have my inverter on suppling my essentials with battery power even though it’s connected to the non essential side. 

4 minutes ago, Derek Ramos said:

I’m not sure I follow, I don’t want to have no readings running through the ct coil, I’m trying to solve the issue of my pre paid meter tripping, it doesn’t trip if I connect it before the ct coil, it trips or shows error -30- if I have my inverter on suppling my essentials with battery power even though it’s connected to the non essential side. 

If both live and neutral leads are being put through the CT's core, then the current can not be measured and that's how I interpret your drawing.

You should have the pre-paid meter connected before the CT, only then can the inverter prevent feeding back to the grid/trip the pre-paid meter.

Edited July 20, 20223 yr by Kalahari Meerkat

10 minutes ago, Kalahari Meerkat said:

If both live and neutral leads are being put through the CT's core, then the current can not be measured and that's how I interpret your drawing.

Sorry for that, not my intention,  I see how my drawing looks like that. I ment to show the ct coil on the live only. 
 

14 minutes ago, Kalahari Meerkat said:

You should have the pre-paid meter connected before the CT, only then can the inverter prevent feeding back to the grid/trip the pre-paid meter.

so if I was to put a plug point before the ct coil then obviously I would have to have a and earth leakage and all that for that plug point. 

is this normal practice for people using ct coils to put the pre paid meter before the ct coil? I mean my meter outside in the street is before the ct coil and works fine. It’s just the one that plugs into the wall where I load my electricity into. 

2 hours ago, Derek Ramos said:

so if I was to put a plug point before the ct coil then obviously I would have to have a and earth leakage and all that for that plug point. 

Yes, but no, what you should have is... energy meter... earth leakage... CT and or plug point, order not really important, since presumably the plug point is where you want to connect the user interface for the smart meter... then all your non-essential loads and then your inverter...

Don't have a smart meter anywhere near here, so not sure, but the power line comms don't survive going through the inverter, generally, so the user interface for the pre-paid meter has to be before the inverter somewhere...

On 2022/07/20 at 5:54 PM, Kalahari Meerkat said:

Yes, but no, what you should have is... energy meter... earth leakage... CT and or plug point, order not really important, since presumably the plug point is where you want to connect the user interface for the smart meter... then all your non-essential loads and then your inverter...

Don't have a smart meter anywhere near here, so not sure, but the power line comms don't survive going through the inverter, generally, so the user interface for the pre-paid meter has to be before the inverter somewhere...

Thanks for the reply, I have changed up all my wiring so that that my meter is before everything else and before the ct coil but it still doesn’t work… well the odd thing is it works sometimes and then stops working. It’s works and stops working a couple of times a day. I’ve even gone through all my wiring to make sure I haven’t mixed up a neutral or something.
 

Also considering that the earth and neutral wires show continuity from the main road supply, wouldn’t this maybe cause an issue with the neutral wires being supplied from the inverter, because that possibly causes a connection between the grid neutral to earth to inverter earth to inverter neutral. A bit confusing but I hope you understand what I mean. 
 

out of curiosity, I wanted to check continuity (beep test with multimeter) between the grid incoming and the load out outgoing on the inverter. When I have zero export and zero trickle from the grid surely I shouldn’t get continuity between grid and load on the inverter. But I do get a feint beep, even if I disconnect my load wires from the inverter then the grid incoming still gives slight continuity to the load side connection point ? Could this not be a possible fault and reason why my meter goes nuts or works when it feels like it because it’s getting back feed? 

On 2022/07/20 at 11:20 AM, WannabeSolarSparky said:

Not sure if you solved the original query?
Suggested meter placement to eliminate errors from/caused by the inverter.

I’m theory this should of worked but sadly it doesn’t 

1 hour ago, Derek Ramos said:

I’m theory this should of worked but sadly it doesn’t 

Maybe the remote part of the meter is faulty? Or has incorrect settings, I am sure your utility provider should be able to test/confirm correct functioning and/or settings.

1 hour ago, Derek Ramos said:

When I have zero export and zero trickle from the grid surely

Have you tried setting the trickle higher so that it reduces the amount of times small bursts of power backfeed to the grid.
I have mine set constantly at 50watts and still see the odd split-second backfeed when large loads drop off.
AFAIK it is almost impossible to 100% prevent backfeed with grid tied inverters.

20 minutes ago, WannabeSolarSparky said:

Maybe the remote part of the meter is faulty? Or has incorrect settings, I am sure your utility provider should be able to test/confirm correct functioning and/or settings.

My utility provider can’t even supply me with constant electricity. 😀 jokes… 

 

I’ll look into this, thanks 

38 minutes ago, WannabeSolarSparky said:

Have you tried setting the trickle higher so that it reduces the amount of times small bursts of power backfeed to the grid.
I have mine set constantly at 50watts and still see the odd split-second backfeed when large loads drop off.
AFAIK it is almost impossible to 100% prevent backfeed with grid tied inverters.

IIRC Derek indicated the console works 100% from the complex gate supply.

36 minutes ago, WannabeSolarSparky said:

Have you tried setting the trickle higher so that it reduces the amount of times small bursts of power backfeed to the grid.
I have mine set constantly at 50watts and still see the odd split-second backfeed when large loads drop off.
AFAIK it is almost impossible to 100% prevent backfeed with grid tied inverters.

Well because my panels aren’t connected yet I always have a constant feed supplying my non essentials, some plugs and geysers. So I took my trickle down to zero because I thought I wouldn’t need it right now and my meter wasn’t working so I was trying different things. I’ll try set it for like 80-100 watts just to monitor some stuff. 
 

when you have your earth bonding, should that only be activated when you have load shedding? What about if you supplying your load with 100% power from the batteries? Surely that should also activate your earth bonding even if you have grid feed? 

3 minutes ago, Scorp007 said:

IIRC Derek indicated the console works 100% from the complex gate supply.

I did realize that that gate motor power is coming off a different meter, we have 5 meters in the complex… 4 houses and one community property meter. So maybe this is why it would work on another supply. 

4 minutes ago, Derek Ramos said:

when you have your earth bonding, should that only be activated when you have load shedding?

Yes AFAIK the bonding should ONLY happen when grid goes down. That's how mine is setup.

1 hour ago, WannabeSolarSparky said:

Have you tried setting the trickle higher so that it reduces the amount of times small bursts of power backfeed to the grid.
I have mine set constantly at 50watts and still see the odd split-second backfeed when large loads drop off.
AFAIK it is almost impossible to 100% prevent backfeed with grid tied inverters.

IIRC Derek indicated the console works 100% from the complex gate supply.

@Derek Ramos Take a look at this as well...

It may be the inverters fault... high frequency noise+harmonics could be preventing the communications of the meter interface... I think someone from Sunsynk needs to come to the party and shed light on this issue, supposedly the Inverters were approved with a switching frequency of 19kHz and supposedly now they are running at 15kHz, which to some of us, who didn't squander our time with loud rock'n'roll are annoyed by this 15kHz noise.... at 19kHz, very few would hear it, but 15kHz... problem... why would we use 20Hz to 20kHz as the measure for speaker sound reproduction and then run a "noise source" at 15kHz... heck it should run at 21kHz just for good measure and peace of mind and this may then also shift the interference signal superimposed on the 50Hz AC power enough so it won't interfere with these prepaid meters either... maybe... @Sunsynk Limited @Sunsynk inverters ?? any feedback or information to be shared? and how about a list of all the firmware versions past and present with information about what they "fixed" or changed and when was this switching frequency change put into effect? from which firmware version?

On 2022/07/26 at 9:30 AM, Kalahari Meerkat said:

@Derek Ramos Take a look at this as well...

It may be the inverters fault... high frequency noise+harmonics could be preventing the communications of the meter interface... I think someone from Sunsynk needs to come to the party and shed light on this issue, supposedly the Inverters were approved with a switching frequency of 19kHz and supposedly now they are running at 15kHz, which to some of us, who didn't squander our time with loud rock'n'roll are annoyed by this 15kHz noise.... at 19kHz, very few would hear it, but 15kHz... problem... why would we use 20Hz to 20kHz as the measure for speaker sound reproduction and then run a "noise source" at 15kHz... heck it should run at 21kHz just for good measure and peace of mind and this may then also shift the interference signal superimposed on the 50Hz AC power enough so it won't interfere with these prepaid meters either... maybe... @Sunsynk Limited @Sunsynk inverters ?? any feedback or information to be shared? and how about a list of all the firmware versions past and present with information about what they "fixed" or changed and when was this switching frequency change put into effect? from which firmware version?

100%, I took my brand new 5kw inverter in to Sunsynk due to this 15000Hz noise it is emitting through my devices in the house. Working from home I would get a headache after a day in front of my PC. 

Over a month passed when they eventually called me to say there is nothing wrong with the inverter and people with super sensitive hearing might pick up on the noise it emits. Now to me this is not acceptable and I have escalated the matter to a manager who's email address they gave me. Still awaiting further feedback. 

In the other threads there are reports of someone getting a replacement inverter that did not make the noise and another member bought two inverters of which only one fo them made a noise, so surely this issue can be solved by Sunsynk. 

 

Due to the long time to respond and once again increased loadshedding I purchased a growatt 5kw inverter as a stop gap till Sunsynk solves the issue. The Growatt emits no noise from my devices but it lacks the Sunsynk features I was after. 

I have attached results of the same test done from a phone sound spectrum tester when running on the Sunsynk vs running on the Growatt.