Electrical Engineering ⇒ Topic : Importance of Power Factor Improvement
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Sunita
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Importance of Power Factor Improvement (1) For consumers Consumers (not domestic consumers because for domestic consumer p.f. is close to unity) are bound to pay electricity charges for his maximum kVA demand plus the units consumed. If the consumers improve the power factor, there is a reduction of kVA demand. So there will be annual saving. For improvement of power factor, there is an extra annual expenditure on account of p.f. correction equipment. If p.f. is improved to a proper value, there will be net annual saving for the consumer. (2) For generating station The rating of generators are in kVA and output is in kW. Station output is kW = kVA x cos Φ.The number of units supplied by the generating station depends on the power factor. So greater the p.f. of the generating station, the kWh supplied to the system will be more. It can be concluded that the improved power factor increases the earning capacity of the power station. | |
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