Three impedances Z1, Z2 and Z3 are delta-connected to a symmetrical 3-phase, 400 V supply of phase sequence RYB. Z1 = (8 – j 6) Ω and is connected between lines R and Y. Z2 = (6 + j 8) Ω and is connected between lines Y and B. Z3 = (10 + j 0) Ω and is connected between lines B and R. Calculate (i) line and phase currents (ii) power per phase (iii) total power.

Three impedances Z1, Z2 and Z3 are delta-connected to a symmetrical 3-phase, 400 V supply of phase sequence RYB. Z1 = (8 – j 6) Ω and is connected between lines R and Y. Z2 = (6 + j 8) Ω and is connected between lines Y and B. Z3 = (10 + j 0) Ω and is connected between lines B and R. Calculate (i) line and phase currents (ii) power per phase (iii) total power.

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 3.43P: Three single-phase transformers, each rated 10MVA,66.4/12.5kV,60Hz, with an equivalent series...

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