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The voltage regulation of a transformer at full load and 0.8 power factor lagging is 2.5%. The voltage regulation at full load, 0.8 power factor leading will be _______ % .
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- 0.1 %
- 1 %
- 2 %
- 10 %
Correct Option: B
∈ = ∈r cos θ + ∈x sin θ
If we take 2.5= 1.75 + 0.75 then at leading power factor load,
∈ = ∈r cos φ – ∈x sin φ = 1.75 – 0.75 = 1.0%
