The transformers are required for a scott connection operating from 460 V, 3-phase supply for supplying two single-phase furnaces at 230 V on the two phases side. If the load per phase is a 25-Hp single-phase induction motor with an efficiency of 96% and power factor of 0.777 lagging, solve for the primary to secondary turn ratio and winding currents of each transformer ?

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.11P: For the transformer in Problem 3.10. The open-circuit test with 11.5 kV applied results in a power...
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The transformers are required for a scott connection operating from 460 V, 3-phase supply for supplying two single-phase furnaces at 230 V on the two phases side. If the load per phase is a 25-Hp single-phase induction motor with an efficiency of 96% and power factor of 0.777 lagging, solve for the primary to secondary turn ratio and winding currents of each transformer ?

 
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