How do I solve this 3-ph, three wire problem?

[alternativess]

Currently having problem in doing an addition practice question as below.

http://img393.imageshack.us/img393/1779/q2q6xm.jpg



http://img255.imageshack.us/img255/5222/q28jw.jpg

Also, how do I draw the phasor diagram for line current IA, IB, IC and VBC, VCA, VAB?

I am doing more extra questions to prepare for my final examination which is next few weeks.
Hope experts here could give me some guides.
Thank you.

[mdshunk]

I had to print this one out, so that I can scribble a little while I scratch my head. I'm better at solving problems like this with a pencil in my hand, rather than on the keyboard. Stand by, unless Ohm beats me to the punch and gives you the answer. compute_1

[Homer]

Hope experts here could give me some guides.Sure.

This problem really just takes some grunt work to solve.

As for hints, here goes.

1) The line and phase voltages are equal (delta).

2) The line currents are the sum of the phase currents at each node.

3) The phase current = phase voltage / phase impedance

As a tidbit, Iab= 22<195°

Solve the other phase currents, then the line currents, then calculate the power.

Homer

[alternativess]

Thx homer, get it.

[ggratecc]

Here's the solution I came up with:
Sorry for sloppy writing...

http://www.geocities.com/ggratecc/scan3phaseVectors_3.jpg

Click on link above and scanned jpg should appear in your browser window.
Put mouse cursor over image, then click expand image (lower right hand corner).

The numeric answers are in boxes.
I tried to draw most of the vectors (crude, but in color).

Here is more information about drawing the vectors:
http://www.electrician.com/electa1/electa4htm.htm

HTH,
ggratecc