11-A 20 KVA-2200/220 V-50 Hz single phase transformer has a magnetic flux of 16 mWb. Find the primary and secondary numb

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11 A 20 Kva 2200 220 V 50 Hz Single Phase Transformer Has A Magnetic Flux Of 16 Mwb Find The Primary And Secondary Numb 1 (34.48 KiB) Viewed 23 times

11-A 20 KVA-2200/220 V-50 Hz single phase transformer has a magnetic flux of 16 mWb. Find the primary and secondary number of turns. 2-By the tests the following results were obtained : Open-circuit test: V20-220 V 120=2.7 A P20 = 148 W Short-circuit test:: Vic = 86 V IIc = 6.5 A PIC=360 W -Draw the diagram of electric circuit for each test with the used electric instruments. 22- Find the parameters of the equivalent circuit referred to primary and to the secondary. 23-Find the power factors at no-load and short-circuit mode 3-The primary voltage being 2200 V. The transformer supplies his full load current at : (a) Pure Resistive (b) Pure capacitive -Calculate for (a) and (b): -The secondary voltage -The voltage regulation -The efficiency of the transformer. (3.2-Dr 3.2-Draw the Kapp's vector diagram of voltages for (a) and (b) (9pts)