SSC JE Electrical Engineering 2014 Set 1 Paper

Question : 155 of 200

Marks: +1, -0

In an autotransformer of voltage ratio

V_1/ V_2, V_1 > V_2

, the fraction of power transferred inductively is proportional to

$V_1 \/(V_1 + V_2 )$
$V_2 \/ V_1$
$(V_1 – V_2 )\/(V_1 + V_2 )$
$(V_1 – V_2 )\/V_1$

Validate

Solution:

In an Aup transformer the Power is transferred both inductively and conductively.
For inductive Power transfer in Auto transformer is Total Power Input ×

(V_1 – V_2 )/V_1

and Power transfer Conductivity is given at totalPower Input ×

V_1/ V_2

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