A balanced 3 phase load is rated at S=10KVA and 500V. The device is operating at 90% nominal voltage and 100 % line current. The question is: if the load is delta connected, find the phase current in per unit and SI units. I calculated correctly that the per unit line current value is 0.58 pu, but the answer given for Ip=6.7A and I don't see why. I calculated S=VI* S/V=I*=20A and 6.7 is 20/3......I thought that for delta connected load, you Iphase=Iline/√3..... I am out by a factor of 1/√3 please explain!