了in下3.(20 points)Per Unit Normalization.Find a single phase per unit equivalent circuit for thebafanced three phase distribution system shown below.Convert the loads to complex impedancesin per unit on a power base of 30MVA and a voltage base of 6.2kV at generators 2 and 3.Generators are producing given three phase MVA at base line-to-line voltage;Loads are consumingat the given numbers;transformers ratings are given,but transformers are passing less than givenMVA and voltage.2-3T1T2ABSystem Information:Generator 130MVA,11kV,generator output reactance is 0.435pu on generator 1 baseGenerator 215MVA,6.6kV rated,generator output reactance is 0.413pu on generator 2 baseGenerator 3P&Q not given,it's a slack generator,6.2kV,generator output reactance is0.520 pu on a 30MVA,6.2kV baseTransformer T1 15MVA,33kV:11kV,Leakage reactance is 0.09pu on transformer T1 baseTransformer T2 15 MVA,33kV:6.2kV,Leakage reactance is 16 Ohms per phase computed on thehigh voltage sideTransmission line20.5 Ohms per phase (inductive)Load A 25MW,11kV,0.9 lagging power factorLoad B 30MVA,6.2kV,0.85 lagging power factor