Two balanced three phase loads are connected to a busbar with
10kV line voltage at 50Hz. Load A is 168kVA at cosφ = 0,85
(lagging). Load B is connected in Y and draws a complex phase
current ?? = 4,79∠ − 24,5°.
Calculate the total active, reactive and apparent power at
the busbar.
Calculate the combined cosφ at the busbar.
A third balanced load is connected to the busbar.The total power
at the busbar is now 288kW, cosφ = 0,87...