The magnetic circuit shown in Figure above consists of a laminated core of USS Trans-former 72, 29-gauge steel with an air gap g of 6 mm and an exciting winding of 1,000 turns. The stacking factor for the core is given to be 0.94. Neglect leakage but correct for fringing by adding the length of the air gap to each of the other two dimensions of the cross section. The dc magnetization characteristic for USS Transformer 72, 29-gauge steel is given in Figure. Determine the current in the exciting winding that produces a core flux of 1 X 10-³ Wb.

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
Question
EXAMPLE 1
I
Wb.
120
80
g=6
1,000 turns
100
40
60
mean magnetic-flux path
The magnetic circuit shown in Figure above consists of a laminated core of USS
Trans-former 72, 29-gauge steel with an air gap g of 6 mm and an exciting winding of
1,000 turns. The stacking factor for the core is given to be 0.94. Neglect leakage but
correct for fringing by adding the length of the air gap to each of the other two
dimensions of the cross section. The dc magnetization characteristic for USS
Transformer 72, 29-gauge steel is given in Figure.
Determine the current in the exciting winding that produces a core flux of 1 X 10-³
Transcribed Image Text:EXAMPLE 1 I Wb. 120 80 g=6 1,000 turns 100 40 60 mean magnetic-flux path The magnetic circuit shown in Figure above consists of a laminated core of USS Trans-former 72, 29-gauge steel with an air gap g of 6 mm and an exciting winding of 1,000 turns. The stacking factor for the core is given to be 0.94. Neglect leakage but correct for fringing by adding the length of the air gap to each of the other two dimensions of the cross section. The dc magnetization characteristic for USS Transformer 72, 29-gauge steel is given in Figure. Determine the current in the exciting winding that produces a core flux of 1 X 10-³
B
(tesla)
1.6
6
(a)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
200
R₁
www
400 600
H (ampere-turns per meter)
800 1000 1200
(b)
R₁
Transcribed Image Text:B (tesla) 1.6 6 (a) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 200 R₁ www 400 600 H (ampere-turns per meter) 800 1000 1200 (b) R₁
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