ETO – ETO – Section 2 : 2024/OCT/04 – 2023/FEB/04 – 2023/APR/06 – 2023/JUL/04 – 2023/SEP/05 – 2023/NOV/05 – 2024/JUL/04
Question
Q4. A) Explain the potential hazards if liquid-cooled transformers are used. (6)
b) What are the losses in transformers? Mention the various factors which affect these losses. In a 25 KVA, 3300/233 V, single phase transformer, the iron and full-load Cu. Losses are respectively 350 and 400 w. Calculate the efficiency at half-full load 0.8 power factor. (10)
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