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MEO Class II – MET : 2012/MAR/09 – 2014/JUN/09 – 2015/JUN/09 – 2015/DEC/09 – 2016/AUG/10 – 2012/OCT/09
Question
Q10. A. How does change to frequency affect the operation of the transformer? What makes this ratio different from the ratio of transformer? B. A 550 KVA, 50 Hz single phase transformer has 1875 and 75 turns in the primary and secondary windings respectively. If the secondary voltage is 220 V, calculate (i)Primary voltage; (ii)Primary and secondary currents; iii. Maximum value of flux.
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