Transcription of Power Factor Improvement
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Power Factor Improvement
101 IntrIntrIntrIntrIntroductionoductionoduc tionoductionoductionThe electrical energy is almost exclusivelygenerated, transmitted and distributed inthe form of alternating current. Therefore,the question of Power Factor immediately comesinto picture. Most of the loads ( inductionmotors, arc lamps) are inductive in nature andhence have low lagging Power Factor . The lowpower Factor is highly undesirable as it causes anincrease in current, resulting in additional lossesof active Power in all the elements of Power sys-tem from Power station generator down to theutilisation devices.
Power Factor Improvement 105 Illustration. To illustrate the power factor improvement by a capacitor, consider a single *phase load taking lagging current I at a power factor cos φ1 as shown in Fig. 6.3. The capacitor C is connected in parallel with the load.
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