An unbalanced four-wire star-connected load has a balanced voltage of 400V. The loads are z1=8+j14, z2=13+14j, Z3=15+20j ohms.
A) Find the line current.
B) Find the neutral current.
A symmetrical three-phase, three-wire 440V supply is connected to a star-connected load. The impedance in each branch is Zr=(10+j30) ohms, Zy=(21-32j) ohms, Zb=(13+j18) ohms. Find Zry.