How to install the current clamp?

Hi all,

I'm thinking about buying me a FLM to monitor our electricity usage. I would like to do the installation of the current clamp myself so I opened up the fuse box to check what clamps I need to order and how easy it can be installed.
There is one cable going from the electricity metering device into the fuse box, on the top right corner, see: https://www.dropbox.com/s/o08vh6amtmjja0z/IMAG0907.jpg?dl=0

This cable consist of one brown, one blue and two black lines.

I guess we are talking about 3 phases here, correct?
So I would need 3 clamps and attach them to the black and brown lines?

Thanks for your help!
Freek

voogt's picture

You are living in The Netherlands?

I started with a clamp config but changed it to kwh metering with S0 pulse.
My config now, 9 groups 16A (1 solar) per 4 groups on 1 KWh meter with pulse to flukso. Solar a separate KWH meter to flukso. Also a extra KWH meter for total usage

Also smart meter connected to flukso and flukso via PVoutput connected so also gas usage.

On your picture I only see some cables from the fuse so cannot say you have 3 phase or not.
make a picture of complete fusebox, with masterswitch and earthswitch.

regards

Richard

gebhardm's picture

Corresponding to your initial question and the picture of the earth-switch it is three phase and wires black-black-brown to clamp, as you assumed.
But as always with electric wiring - if you are not an expert and not 100% sure what you are doing, DON'T ask a forum, but an expert at hand; otherwise on error not only your insurance company will bug you.

Freek's picture

Thanks all for your help.
I think I have an idea about the installation, but I'll ask my brother in law for advice, he's an electrician.

One more question: if 3 clamps are attached to the FLM for the 3 phases, then all ports on the FLM are taken? In this case it is not possible to add the gas and water probes, correct?

gebhardm's picture

No, there are three clamp ports and two pulse ports OR one clamp port and four pulse ports; so three clamps and two pulse sensors fit to one FLM.
https://www.flukso.net/content/fluksometer-v2b

This means that the FLM02B will come with either 1x analog and 4x pulse or 3x analog and 2x pulse ports.

Freek's picture

Today my Fluskometer arrived and I'm trying to configuring it.

I'm not sure what voltage I should configure for the electricity sensor.
There are 3 phases. Between each phase and the neutral line there is 240V. Between 2 phases there is 416V.

Is 230 the right voltage in my case?

voogt's picture

You want to get values for each phase so on every phase you can put a clamp. If you do not have Solar panels it should give the used electricity I expect.

I started with clamps but now use Kwh via Pulse and Smart meter output on a one phase system. Pulse in my opinion is more acurate especialy when you have solar panels.

If you installed your clamp for one phase I think it should be 230V and 50 for current.