PROBLEM 3. Using the values in the Table determine in percentage the skin effect on resistance, when operating at AC, 60 Hz, 20°C, for the Chickadee conductor.
PROBLEM 3. Using the values in the Table determine in percentage the skin effect on resistance, when operating at AC, 60 Hz, 20°C, for the Chickadee conductor.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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PROBLEM 3. Using the values in the Table determine in percentage the skin effect on resistance, when operating at AC, 60 Hz, 20°C, for the Chickadee conductor.
Transcribed Image Text:TABLE A.3
Electrical characteristics of bare aluminum conductors steel-reinforced (ACSR)*
Code word
Waxwing
Partridge
Ostrich
Merlin
Linnet
Oriole
Chickadee
Ibis
Pelican
Aluminum area, Stranding Layers of Outside diameter,
Al/St
18/1
26/7
26/7
cmil
266.800
266.800
300.000
336.400
336.400
336.400
397.500
397.500
477.000
18/1
26/7
30/7
18/1
26/7
18/1
aluminum
2
2
2
2
2
2
2
2
2
in
0,609
0,642
0,680
0,684
0,721
0,741
0,743
0,783
0,814
Resistance
0,0504
0,0433
0,0430
0,0361
Ac, 60 Hz
Dc, 20°C, 20°C, 2/mi 50°C, 22/mi
02/1,000ft
0,0646
0,0640
0,0569
0,0512
0,0507
0,3488
0,3452
0,3070
0,2767
0,2737
0,2719
0,2342
0,2323
0,1957
0,3831
0,3792
0,3372
0,3037
0,3006
0,2987
0,2572
0,2551
0,2148
0,0198
0,0217
0,0229
GMR Ds ft Inductive Xa
0,0222
0,0243
0,0255
0,0241
Reactance per conductor 1-ft
spacing, 60 Hz
0,0264
0,0264
Inductive Xa, Capacitive X a
22/mi
0,476
0,465
0,458
0,462
0,451
0,445
0,452
0,441
0,441
ΜΩ.mi
0,1090
0,1074
0,1057
0,1055
0,1040
0,1032
0,1031
0,1015
0,1004
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