6. 150 kVA, 2800-240 V, 50 Hz transformer. Reg.Ls = 0.0082N , Xeq,Ls Step down transformer delivers 135 kW to a load at 0.9 lagging power factor at rated voltage. Determine the Following: a) Terminal voltage (LV side). b) Terminal voltage (HV side). c) High side current. = 0.02232 Rfe.Hs-22002 Xm.Hs=12002

6. 150 kVA, 2800-240 V, 50 Hz transformer. Reg.Ls = 0.0082N , Xeq,Ls Step down transformer delivers 135 kW to a load at 0.9 lagging power factor at rated voltage. Determine the Following: a) Terminal voltage (LV side). b) Terminal voltage (HV side). c) High side current. = 0.02232 Rfe.Hs-22002 Xm.Hs=12002

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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Similar questions

The direct electrical connection of the windings allows transient over voltages to pass through the auto transfonner more easily, and that is an important disadvantage of the autotransformer. (a) True (b) False
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A 130-MVA,13.2-kV three-phase generator, which has a positive-sequence reactance of 1.5 per unit on the generator base, is connected to a 135-MVA,13.2/115Y-kV step-up transformer with a series impedance of (0.005+10.1) per unit on its own base. (a) Calculate the per-unit generator reactance on the transformer base. (b) The load at the transformer terminals is 15 MW at unity power factor and at 115 kV Choosing the transformer high-side voltage as the reference phasor, draw a phasor diagram for this condition. (C) For the condition of part (b), find the transformer low-side voltage and the generator internal voltage behind its reactance. Also compute the generator output power and power factor.