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A single – phase inductive load is drawing 10 MW at 0.6 power factor lagging. A capacitor is added in parallel across the load to improve the power factor to 0.85. What is the reactive power required for the capacitor?
  • a)
    -7.13 MVAR
  • b)
    -13.33 MVAR
  • c)
    -6.2 MVAR
  • d)
    -19.53 MVAR
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A single – phase inductive load is drawing 10 MW at 0.6 power fa...
Initially when the real power is 10 MW and power factor is 0.6, the reactive power is 
Now when the capacitor is added, improved power factor is
cos-1 0.85 = 31.79°
Reactive power is 10 tan 31.79° = 6.2 VAR

Reactive power needed for the capacitor
= Qc = - (13.33 – 6.2)
= - 7.13 MVAR
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A single – phase inductive load is drawing 10 MW at 0.6 power fa...
A single what? Please provide more context or information so that I can better understand and provide a proper response.
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A single – phase inductive load is drawing 10 MW at 0.6 power factor lagging. A capacitor is added in parallel across the load to improve the power factor to 0.85. What is the reactive power required for the capacitor?a)-7.13 MVARb)-13.33 MVARc)-6.2 MVARd)-19.53 MVARCorrect answer is option 'A'. Can you explain this answer?
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