Jump to content

Sensitivity of 3EM Pro current transformers


Recommended Posts

I have a Shelly 3EM Pro working great (love the product ! ) but there's one small snag I've encountered.

When my 3 phase device is ON, the 3EM is showing ~22kw of power - working 100% correctly .

When my 3 phase device is OFF, the 3EM is showing 1.6 w of power  - which is incorrect / spurious.


Is there a way to set a low threshold to the current transformers so that the tiny tiny 1.6w is actually displayed as zero on the dashboard ?

 

Many thanks

 

Mistamudd

Link to comment
Share on other sites

  • 2 weeks later...
Posted (edited)

Just to clarify - the transformers are placed inside a metal distribution panel on the 3 phase incoming cables.
When every single outlet is switched OFF and the supply current is a genuine ZERO, Im still seeing 1 or 2 watts of power on the 3EM.

At a guess - this is the operational power that the 3EM is using to run.

Is there anyway to set a low threshold on the measurements where this micro power demand would be reported as zero ?




Thank you

Edited by Mistamudd
Link to comment
Share on other sites

  • 4 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...