Calculation for a radial supply system

[wsharrock]

Homework Statement

[/B]
Im working through my HNC with the answers but i do not know how they have come to the numbers below.Total load = 1.5/-60 degrees + 2.3/-18 degrees.

=(0.75−j1.3)+(2.19−j0.71)
2. Homework Equations .

Not sure yet

The Attempt at a Solution

I understand how they have got to 0.75 and 2.19 it is MVA multiplied by the power factor.
I have tried all calculations but i can not get to the j1.3 and the j0.71.
Im fine with everything else. I know it will be something simple I'm missing

 

[DrClaude]

I have tried all calculations but i can not get to the j1.3 and the j0.71.

You'll have to explain what you tried.

 

[scottdave]

Last time I checked, lagging power factor means an inductive load. What do your numbers (0.75 - j1.3) represent? Ohms? Current? something else?
What are they asking for? All I see is a diagram of the system.

 

[magoo]

I see you understand how to get the MW from the MVA. You use the PF.

To get the reactive power, Mvar, you need to use the reactive power factor, QF, where