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A 1-phase transformer have full load percentage resistive and reactive drops equal to 1% and 4% respective Calculate its full load voltage regulation at 0,8 pl lagging |
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Answer» The primary winding of a 500VA, 10:1 single-phase step-down transformer is FED from a constant 240Vrms SUPPLY. Calculate the percentage regulation of the transformer when connected to an impedance of 1.1ΩData given: VA = 500, TR = 10:1, VP = 240V, ZS = 1.1Ω, FIND %Reg.transformer no-load voltage regulation Therefore, VS(no-load) = 24 Voltstransformer full-load voltage Therefore, VS(full-load) = 23.45 Voltstransformer percentage voltage regulation Then the percentage down regulation calculated for the transformer is given as: 2.29%, or 2.3% rounded-offExplanation:I think this may HELP you |
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