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Posted: Fri Jul 01, 2022 6:09 am
***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
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.
***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
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***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
***Use LTspice for solved this problem only***
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.