Results 1 to 5 of 5

Thread: Things in panel

  1. #1
    Join Date
    Mar 2007
    Location
    Montreal, Quebec
    Posts
    40

    Question Things in panel

    I used to konw what these were but not this minute, so what are the blue things at the bottom of the panel?

    Similar Threads:
    ***IMPORTANT*** You Need To Register To View Images ***IMPORTANT*** You Need To Register To View Images
    F.I.R.E. Services

  2. #2
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,248

    Default Re: Things in panel

    Those are CTs (Current Transformers) and they have been removed.

    When a conductor is placed through the opening in the CT, as current flows in the conductor it produces a magnetic field, which produces current in the CT, and voltage at the CT leads. These can be used for various uses, including monitoring the power being used, the amount of current flowing, and for tripping overcurrent devices, among other uses.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  3. #3
    James Duffin's Avatar
    James Duffin Guest

    Default Re: Things in panel

    They look like current transformers that are not currently being used since there is no wire going through the hole in the middle..


  4. #4
    Join Date
    Mar 2007
    Location
    Montreal, Quebec
    Posts
    40

    Default Re: Things in panel

    Thanks guys, a heat pump was removed from the house, could these have been used for the control system of the heat pump?

    David Smith


  5. #5
    James Duffin's Avatar
    James Duffin Guest

    Default Re: Things in panel

    In a residential application they are normally used for monitoring and not control. But anything is possible so I would look for some more leftover parts....like a receiver of some type.


Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •