We have a 12kW stand-by generator with ATS (automatic transfer switch). Inside the house I want an LED that indicates when the mains/utility power is on or off, and another LED that indicates when the generator is running or not.
I want to use your CTs with an Arduino Nano inside my ATS box, to detect an energized wire, and sometimes there is no current flow through the wire but it’s still energized. I was looking at these:
ECS24-200 (for the mains/utility power wires)
ECS10-50 (for the generator power wires)
I though about putting a NCVT on a long wire, but I think a CT is more reliable. Is it possible to use a CT to detect an energized wire, even when there is no current flow?