a single-phase 250KVA, 11kV/2.2kV, 60HZ transformer has the following parameters. RHv = 1.3 0 RLv = 0.05 Q ROLV) = 2.4 kN XHV = 4.5 0 XLy = 0.16 0 XMILV) = 0.8 kM a) Draw the approximate equivalent circuit referred to the HV side and show the parameter values, b) Determine the no-load current in amperes (HV side) as well as in per unit. c) If the low-voltage winding terminals are shorted, determine (i) (ii) The supply voltage required to pass rated current through the shorted winding. The losses in the transformer
a single-phase 250KVA, 11kV/2.2kV, 60HZ transformer has the following parameters. RHv = 1.3 0 RLv = 0.05 Q ROLV) = 2.4 kN XHV = 4.5 0 XLy = 0.16 0 XMILV) = 0.8 kM a) Draw the approximate equivalent circuit referred to the HV side and show the parameter values, b) Determine the no-load current in amperes (HV side) as well as in per unit. c) If the low-voltage winding terminals are shorted, determine (i) (ii) The supply voltage required to pass rated current through the shorted winding. The losses in the 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 3.9P
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