[RE-wrenches] Current Transformers (CTs) paralleled for multiple panel measure?

[Jason Szumlanski]

It will work from a technical standpoint, but you have to check if the
inverter can handle the current. Of course the current coming out of the
CTS will be a fraction of the actual current but there is going to be a
limit.

We do it on Enphase systems all the time for consumption monitoring.

Jason

On Thu, Aug 11, 2022, 2:26 PM Scot Arey via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Good day,
>
>
>
> We have a 400-amp meter can with no external disconnect; through the back
> of the meter can, the conductors go through wall to two inside 200-amp
> panels.
>
>
>
> We installed a Sol-Ark 15 (love it!) and had the included 320-amp CTs in
> the meter box but the utility has had change of heart and said nothing
> could go in there.
>
>
>
> A you know, the Solar-Ark can accept a pair of CTs to perform its “Limit
> to Home” functionality, but it can’t accept two.
>
>
>
> We’re considering paralleling the two separate pairs of CTs from each
> panel though an appropriate CT-wire sized connector to parallel the two L1
> CTs and the two L2 CTs into single wire outputs that can land in the inputs
> of the Solar-Ark. There is little possibility of extending the wires of the
> existing meter can to a new disconnect before it goes inside.
>
> Thoughts?
>
>
>
>
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