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  1. #1
    Join Date
    Mar 2007
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    Default mystery items in panel

    Here's something for some of you to ponder until some smarty pants blurts out the answer.
    Hint: It's in a condo.

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  2. #2
    Join Date
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    Default Re: mystery items in panel

    Quote Originally Posted by John Arnold View Post
    Here's something for some of you to ponder until some smarty pants blurts out the answer.
    Hint: It's in a condo.
    I have an answer but I'm not a member of the smarty pants club.


  3. #3
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
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    Default Re: mystery items in panel

    Some kind of amperage meter?

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  4. #4
    Join Date
    Dec 2007
    Location
    Chico,Ca
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    Default Re: mystery items in panel

    Current transformers, prob. for metering .


  5. #5
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    Default Re: mystery items in panel

    Those guys are both pretty smart.

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  6. #6
    Fred Warner's Avatar
    Fred Warner Guest

    Default Re: mystery items in panel

    Quote Originally Posted by John Arnold View Post
    Here's something for some of you to ponder until some smarty pants blurts out the answer.
    Hint: It's in a condo.
    Current transformers used for CT metering. Also known in the trade as "donuts".


  7. #7
    Steven Stafford's Avatar
    Steven Stafford Guest

    Default Re: mystery items in panel

    Would you guy's mind being a little more specific as to the actual purpose of these "doughnuts"? Are they for remote a meter reader? Are the common area lights run off of this service and are the "doughnuts" used to measure the difference in the electrical usage between the two loads?


  8. #8
    Join Date
    Mar 2007
    Location
    Philadelphia PA
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    Default Re: mystery items in panel

    It's in a 50 +/- year old apartment/condo building where the tenants/condo owners pay only the electric bill. Apparently, instead of having separate services and power company meters for each unit, they install these current sensors to meter usage.

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  9. #9
    Steven Stafford's Avatar
    Steven Stafford Guest

    Default Re: mystery items in panel

    Thanks for the info John, I have a few questions if you don't mind my asking.
    I am assuming that in this set up that there is one electric meter and service for x number of units rated at x number of amps.
    Questions:
    1. does the owner/management have a separate bank of sub meters?
    2. is there a bank of disconnects for the units that are setup this way?
    3. is a "main breaker" at the panel shown not called for due to the age of the unit?



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