The most economical power factor for a consumer is:
- 0.84 lagging
- 0.9 lagging
- 0.95 lagging
- 1 (unity)
Correct answer: 3. 0.95
Explanation: If a consumer improves power factor, the cost of maximum kVA demand decrease and he will have savings over his bill.
However, power factor improvement requires a lot of capital investment, as well as the power factor correction equipment has its depreciation charges. There should be a certain extent by which the power factor can be improved.
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