When the power factor is raised to 0.9, the value of P is calculated as follows:
PVI=
=
=
3
3110098 4109
168 74
LL
kW
cos
()(.)(
.)
.
f
9.10 METHOD OF SOLVING PROBLEMS ON UNBALANCED LOAD
In reality, it is difficult to maintain a perfect balanced three-phase load on a power system. Unbalance
load condition occurs due to un even loading of the three phases, causing either unequal magnitude
of the three-phase impedances or the impedance angles. Unbalance load condition will occur due
to unbalanced voltage supply also. In this section, we will take up examples of ...
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