Example 32.16. A 50-kVA, 4,400/220-V transformer has R₁ = 3.452, R₂ = 0.009. The values of reactances are X₁ = 5.2 Q and X₂ = 0.015 2. Calculate for the transformer (i) equivalent resis- tance as referred to primary (ii) equivalent resistance as referred to secondary (iii) equivalent reac- tance as referred to both primary and secondary (iv) equivalent impedance as referred to both pri- mary and secondary (v) total Cu loss, first using individual resistances of the two windings and secondly, using equivalent resistances as referred to each side. (Elect. Engg.-I, Nagpur Univ. 1993)

Example 32.16. A 50-kVA, 4,400/220-V transformer has R₁ = 3.452, R₂ = 0.009. The values of reactances are X₁ = 5.2 Q and X₂ = 0.015 2. Calculate for the transformer (i) equivalent resis- tance as referred to primary (ii) equivalent resistance as referred to secondary (iii) equivalent reac- tance as referred to both primary and secondary (iv) equivalent impedance as referred to both pri- mary and secondary (v) total Cu loss, first using individual resistances of the two windings and secondly, using equivalent resistances as referred to each side. (Elect. Engg.-I, Nagpur Univ. 1993)

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 3.16P: A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters:...

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all äabl (CME 446) 1 If F3=0.1 and Z3=45 Q, then the impedance of the next stage in the multi-section transformer is: of O a. 40.5 stion O b. 49.5 O C. 55 O d. None O e. 36.8 s page Next page