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    Autodesk Revit MEP

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    Active Contributor
    Posts: 27
    Registered: ‎12-12-2012
    Accepted Solution

    Factoring in redundant loads in an electrical distribution system

    243 Views, 3 Replies
    02-19-2013 05:23 PM

    Example Circuit.png

    The above image is a single line diagram of an electrical system that I need to create in Revit.  The inrow UPS's are connected to two SB's for redundancy purposes.  Each SB need's to account for the full 10kW load for each inrow UPS.  In the example above, the inrow UPS's would contribute 30kW to each SB.  However, for the MSB we only need to account for the actual load to each SB.  In the above case, it would 15 kW from each SB.  Is there any way to account for the additional redundant load for each of the SB's without the MSB seeing the redundant load?  Preferably by the Revit electrical system but  if not, any ghetto workaround (i.e.. calculated values in schedules) would be acceptable.  The inrow UPS's also have to have the correct loads associated with the connectors b/c the spaces they are in are reading the electrical loads.

     

    Here's a link to an incorrect Revit example project on dropbox: Click here to view.

     

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    *Expert Elite*
    Posts: 1,913
    Registered: ‎08-28-2009

    Re: Factoring in redundant loads in an electrical distribution system

    02-20-2013 08:12 AM in reply to: aryn

    How are you intending to show this information on the final drawings. For the MSB, I assume you'll use a Panel Schedule, but do you plan to create a Panel Schedule or an Electrical Equipment Schedule for the SB's as well?

    Corey D.                                                                                                                                                               LogoEE.png   AutoCAD user  Revit user
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    Active Contributor
    Posts: 27
    Registered: ‎12-12-2012

    Re: Factoring in redundant loads in an electrical distribution system

    02-20-2013 09:46 AM in reply to: CADastrophe

    We can use either Panel or Electrical Equipment Schedules as it's not the final drawing that's important.  We need to be able to keep track of how loaded the SB's and MSB's are while we add more equipment to the circuits.

     

    A friend of mine has pointed me towards using load classifications in panel schedules, but I'm still trying to figure out how to get them to even show up in the schedule.

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    Active Contributor
    Posts: 27
    Registered: ‎12-12-2012

    Re: Factoring in redundant loads in an electrical distribution system

    02-20-2013 01:47 PM in reply to: aryn

    With a little help from Martin Schimd I was able to utilize Load Classifications and Electrical Panel Schedule calculations to  provide us with the data we needed.  Here's a link to his video which I used to derive the logic from:

    http://inside-the-system.typepad.com/my_weblog/2010/11/accounting-for-non-coincident-loads-in-revit-...

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