3- A 1 phase, 100 kVA, 11000/2200V, 60Hz transformer has the following parameters. RHV = 6.0 RLV = 0.28 2 LLV= 0.0032 H LHV = 0.08 H Lm(HV) == 160 H RC(HV) 125 KQ Obtain an equivalent circuit of the transformer: (a) Referred to the high-voltage side. (b) Referred to the low-voltage side. 71 VA 010/10037 COLL a) Re=125 k2, Xm-60.318 k, Req=132, Xeq=60.32 b) Re=5 kn, Xm=2.4127 km2, Req=0.52, Xeq=2.4128 2

8. We have two push buttons A and B. Design a 3-digit BCD counter that: - counts from 000 to 999 if no button is pressed - Resets the count to 555 if both push buttons A and B are pressed Resets the count to 222 if only push button A is pressed - Resets the count to 333 if only push button B is pressed

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