3 Phase Power Unbalanced Loads

Discussion in 'General Electronics Chat' started by Eggyjla74, Oct 27, 2009.

  1. Eggyjla74

    Thread Starter New Member

    Aug 27, 2009
    I have a delta wired three phase power panel with a series of single phase loads that total 100kVA phAB, 200kVA phBC, 300kva phCA. How do I determine the resultant 3 phase load and the equivalent generator needed to supply the panel? There was a rule of thumb method mentioned, but I'm not looking for the rule of thumb. I'm not certain that ƩkVA the loads is accurate or (ƩkVA)*(√3)/3 is correct either.
    Last edited: Oct 27, 2009
  2. GetDeviceInfo

    Senior Member

    Jun 7, 2009
    either delta or wye, your total demand in watts is the sum of the phases. Your generator however will have to have a rating that services the current draw of the highest load, as well as voltage. So it comes down to the costs of upping the source capabilities, or redistributing the loads.