A 3-phase 4160 V Y-connected source is rated at 5 MVA. It is connected to a balanced 3-phase delta connected load with 300 A phase current at 0.8 p. f. Determine the impedance of the load, and the source line current and power factor seen by the source. What impedance can be added to the system to make the power factor = 1?

Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.