Need help. balanced three phase

[s_arm]

Homework Statement

A balanced three phase 866v, 60Hz Y connected source feeds a balanced delta connected load via 100km long three wire transmission line. The impedance of each wire of the transmission line is 1+j2 ohm. The three phase impedance of the load is 177-j246 ohm. If the phase sequence is positive determine:
the line and phase currents
the power absorbed by the load
the power dissipated by the transmission line

Homework Equations

is the 100km important in this question?

The Attempt at a Solution

I have tried to figure out the resistance of each conductor, but not sure if it's relevant

 

[rude man]

1.

Homework Equations

is the 100km important in this question?

100 km isn't, but 1 + j2 is.

 

[s_arm]

In what way should it be used?

 

[rude man]

In what way should it be used?

In no way. All you need to know is the impedance of each line, plus the other data you're given.

 

[rude man]

Hint: a delta load can be redrawn as a wye load; then, since you have a balanced network, you can focus on one phase only ...