56 A Transformer Whose Nameplate Reads 2300 230 V 25 Kva Operates With Primary And Secondary Voltages Of 2300 V And 23 1 (285.48 KiB) Viewed 40 times
With the primary current being 9.536<-24.23 degreesAmpsKilowatt rating of the transformer being 1.9 kWImpedance at load 1 is 6.6125 ohmsImpedance at load 2 is 2.6 ohmsMagnitude of primary current 10.87 AmpsCreate this circuit in LT Spice
56. A transformer whose nameplate reads 2300/230 V, 25 kVA operates with primary and secondary voltages of 2300 V and 230 V rms, respectively, and can supply 25 kVA from its secondary winding. If this transformer is supplied with 2300 V rms and is connected to secondary loads requiring 8 kW at unity PF and 15 kVA at 0.8 PF lagging, (a) what is the primary current? (b) How many kilowatts can the transformer still supply to a load operating at 0.95 PF lagging? (c) Verify your answers with PSpice.
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