Question: A 3 phase step-down transformer is connected to 6.6 KV mains and takes 10 A. Calculate the secondary line voltage, line current, and output for

A 3 phase step-down transformer is connected to 6.6 KV mains and takes 10 A.

Calculate the secondary line voltage, line current, and output for the following connections (K=12, neglect losses).

(i) Δ/Δ 

(ii) Y/Y 

(iii) Δ/Y and 

(iv) Y/ Δ

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