Basic Engineering Circuit Analysis 11th Edition by David Irwin ,Robert Nelms

تمرين 41

A three-phase abc -sequence wye-connected source supplies 14 kVA with a power factor of 0.75 lagging to a delta load. If the delta load consumes 12 kVA at a power factor of 0.7 lagging and has a phase current of 10 30° A rms, determine the per-phase impedance of the load and the line.