Remote diplay for a Fronius IG TL 3.6

[fiardor]

I agree with Biggs here, except I would phrase it "and one clamp around the cable FROM the Inverter". The cable to the Inverter is DC.
There is no way that current will flow back up to the Inverter when demand is higher than the power being generated by the Solar panel system so you will measure the true power from the Solar system the method Biggs has suggested.

But you are missing the point Brian.
The clamp that measures the 'power in use' cannot cope with two ac voltages passing through it in different directions regardless of where you clamp the inverter.

But even if you are correct Brian how do you plug both clamp leads into the sender box when the generation meter is downstairs and inverter upstairs?

 

[SolarCity]

Okay, my head hurts a bit but I think I'm with you now.

We need the array to be supplied seperately so that we can measure the load of the rest of the circuits independent of what is happening on the PV installation.

 

[brian wright22]

But you are missing the point Brian.
The clamp that measures the 'power in use' cannot cope with two ac voltages passing through it in different directions regardless of where you clamp the inverter.

But even if you are correct Brian how do you plug both clamp leads into the sender box when the generation meter is downstairs and inverter upstairs?

The ac from the upstairs Inverter connects to the Generation meter and that is where you connect one clamp that is measuring the generated power.
The other clamp for measuring the total power being consumed connects to the output of the consumer meter.
I am using this method of connections but I am monitoring on two separate wireless monitors.
I gather the Wattson meter you are refering to has two inputs for each clamp?

 

[fiardor]

The ac from the upstairs Inverter connects to the Generation meter and that is where you connect one clamp that is measuring the generated power.
The other clamp for measuring the total power being consumed connects to the output of the consumer meter.
I am using this method of connections but I am monitoring on two separate wireless monitors.
I gather the Wattson meter you are refering to has two inputs for each clamp?

Indeed it does Brian in fact it has four inputs (3 for power 1 for array)


I am pretty sure that your consumer unit meter that you use should be having a mini stroke trying to measure voltage passing both ways. But i can only comment on my own experience with these power monitors that customers have when i arrive and then go nuts once the pv array is up and running and an rcbo is fitted.

And as for you Biggy?


Its taken you two sentences to explain whats taken me almost all day to explain.

I bow at your feet my PV guru master.

Too much?

I'll get me coat............ :leaving:

 

[SolarCity]

Thanks for your help, Firador ;-)