I am reading this datasheet for an energy meter, to start understanding how this market works.
A friend of mine wants to make a test in a small office building to see if it pays having one of these and he asked for my help, and finally I have an excuse to get to know this kind of devices.
I am leaning towards that meter, good price (around 170eur ~ 200USD), but I don't know what CT clamp to buy for it.
I want one clamp for 100A, 200A and around 600A or more.
But looking at the datasheet:
I am not able to tell which CTs to buy. So far the meters I've studied they have something like
primary coil 100A -> 5A secondary or
primary coil 100A -> 1A secondary,
primary coil 100A -> 0.333A secondary,
primary coil 500A -> 10A secondary, and so on. But this one is different...
For this meter I am not being able to interpret what's the maximum secondary coil current it can handle, and consequently nor the primary.
Can you help me with some examples covering their ratios (
1.0 to 99.9/ 100 to 999 / 1.00k to 6.00k etc.?
PS: I know the dangers of high voltages and current, and no, I am not going to handle the installation of these devices, nor touch electric boards, etc.