5:28 PM Expert Help EikKTO#1996 16:58 Question a. The core of a three phase, 50 Hz, 11000/550 V delta/star, 300 kVA, core-type transformer operates with a flux of 0.05 Wb. Find (i) number of H.V and L.V turns per phase, (ii) e.m.f per turn (iii) full load H.V and L.V turns per phase. Cleon 16:58 ANSWER See details in the solution a. The core of a three phase, 50 Hz, 11000/550 V delta/star, 300 kVA, core-type transformer operates with a flux of 0.05 Wb. Find (i) number of H.V and L.V turns per phase, (ii) e.m.f per turn (iii) full load H.V and L.V turns per phase. 1. Number of turns per phase: V N = 4.44-1-4 where: N = number of turns per phase V = = voltage per phase f frequency (50 Hz) Φ += maximum flux (0.05 Wb) 2. E.M.F per turn: V E₁ = X Et where: N Et = e.m.f per turn

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
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Chapter7: Symmetrical Faults
Section: Chapter Questions
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5:28 PM
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EikKTO#1996
16:58
Question
a. The core of a three phase, 50 Hz, 11000/550 V delta/star, 300 kVA, core-type
transformer operates with a flux of 0.05 Wb. Find (i) number of H.V and L.V turns
per phase, (ii) e.m.f per turn (iii) full load H.V and L.V turns per phase.
Cleon
16:58
ANSWER
See details in the solution
a. The core of a three phase, 50 Hz, 11000/550 V delta/star, 300 kVA, core-type
transformer operates with a flux of 0.05 Wb. Find (i) number of H.V and L.V turns
per phase, (ii) e.m.f per turn (iii) full load H.V and L.V turns per phase.
1.
Number of turns per phase:
V
N = 4.44-1-4
where:
N = number of turns per phase
V =
=
voltage per phase
f
frequency (50 Hz)
Φ += maximum flux (0.05 Wb)
2.
E.M.F per turn:
V
E₁ = X
Et
where:
N
Et = e.m.f per turn
Transcribed Image Text:5:28 PM Expert Help EikKTO#1996 16:58 Question a. The core of a three phase, 50 Hz, 11000/550 V delta/star, 300 kVA, core-type transformer operates with a flux of 0.05 Wb. Find (i) number of H.V and L.V turns per phase, (ii) e.m.f per turn (iii) full load H.V and L.V turns per phase. Cleon 16:58 ANSWER See details in the solution a. The core of a three phase, 50 Hz, 11000/550 V delta/star, 300 kVA, core-type transformer operates with a flux of 0.05 Wb. Find (i) number of H.V and L.V turns per phase, (ii) e.m.f per turn (iii) full load H.V and L.V turns per phase. 1. Number of turns per phase: V N = 4.44-1-4 where: N = number of turns per phase V = = voltage per phase f frequency (50 Hz) Φ += maximum flux (0.05 Wb) 2. E.M.F per turn: V E₁ = X Et where: N Et = e.m.f per turn
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