15

Again, a calculator comes in handy.

Since the new power factor is the cosine of 02, we compute

certainly an improvement.

Recall that the power factor can be expressed as a ratio of kW to kVA. From this idea we can compute a new kVA value:

1.5 kW kVA new or

Fig. III.17 Resulting net power triangle when the capacitor is added. A new kVA can be calculated as well as a new 0.

The line voltage did not change, so the line current must be lower.

1.52 kVA

0 0

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