NO worries. To quote a co-worker, the only stupid question is the one that doesn’t get asked.
When used on a single phase system, you simply ignore any of the “measurements” that apply
to a 3-p system. e.g. you’d ignore any L-L reading and use the L-N reading. It really is as simple
I use a combination of Wattcore and Magnelab CTs. In the US, the wires we use to feed our circuit breaker panels are significantly larger than those used in the UK, (and I’d guess elsewhere, as well) which is the driving reason behind my choice of CT.
So my first question is what is the diameter of the wires your CTs are attached to?
Second, do you want split core, or solid core CTs?