Delta Connections
Calculation of Capacitor Unbalance

So, we have:

But, as before, we can use for the leg currents.

You will notice I_c remained at in both cases. This is because I_ca + I_cb didn't change in either case.

Again, mathematics can be used to solve the line currents. Ignoring the displacement again, we can easily see I_a and I_b will be equal as far as the integer co-factor is concerned.

Using the law of cosines, we can obtain the formula:

or

In our case:

Summary

The balanced delta capacitor circuit and calculations are basic but still prove to be time consuming. For the most part, angular displacement is not significant and there is no reason to go through the long arduous task of finding the displacement just to obtain the resultant, or current. The formula provides the resultant we seek.

The same holds true on the unbalanced delta condition and can be easily handled with the formula