GATE Electrical Engineering (EE) 2019 Solved Paper

Question : 20 of 65

Marks: +1, -0

5 {kVA}, 50 {V} \/ 100 {V}

, single-phase transformer has a secondary terminal voltage of

95 {V}

when loaded. The regulation of the transformer is

Solution:

5 {kVA}, 50 {V} { /}100 {V} 1-ϕ

transformer secondary terminal under load

=95 {V}

voltage regulation

=\;{ {V}_{1}{'}- {V}_{2}}/{ {V}_{1}{'}} × 100=\;{100-95}/{100} × 100=5 \%

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