Question: Two three - phase transformers are parallel operating. The apparent powers are SN 1 = 2 5 0 kVA and SN 2 = 1 6

Two three-phase transformers are parallel operating. The apparent powers are SN1=250kVA
and SN2=160kVA. Both transformers have the same vector group and the same turn ratio. The
power factors cos are also equal. The short-circuit voltages are uk1=6% and uk2=4%.
a) Calculate apparent power S1 respective to S2 of both transformers. The whole transmitted
apparent power is S =350kVA.
b) How much is the maximal apparent load, if no transformer is overloaded?

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