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Appendix D: Menu Parameters
Line Drop Compensation Table - Distribution Line Resistance and Reactance
Table D.1
Copper - Hard Drawn
Cond.
Res.
Reactance (See Note 1)
Size
at
Distance "D" Between Centers of Conductors
o
50
C
MCM
18"
24"
30"
1000 .0685 .449
.484
.511
750 .0888 .466
.501
.529
600 .1095 .481
.516
.543
500 .1303 .492
.527
.554
400 .1619 .507
.542
.569
350 .1845 .515
.550
.577
300 .215
.525
.560
.587
250 .257
.536
.571
.598
AWG
4/0 .303
.546
.581
.603
3/0 .382
.554
.589
.616
2/0 .481
.581
.616
.643
1/0 .607
.595
.630
.657
1 .757
.609
.644
.671
2 .964
.623
.658
.685
4 1.518 .648
.683
.710
6 2.41
.677
.712
.739
8 3.80
.714
.749
.776
Note: 1. 60 Hertz reactance in ohms per mile of each conductor of a single phase, or of a three phase, symmetrical tri-
angular spacing. For other arrangements of conductors see below. The reactance for other frequencies is F/60
times the table values. Reactance values for copper wire are for concentric standard copper conductors. Reac-
tance values for aluminum cable conductors are approximately correct.
The Siemens Line Drop Calculator software application
simplifies the calculation of these parameters. Simply
enter the system values and the application automatically
calculates the resistive and reactive components for you.
Enter these values in the <REGULATOR> menu, and the
MJ-4 automatically compensates for the line drop when
adjusting the output voltage of the regulator.
64
Ohms per Conductor per Mile at 60 Hz
36"
42"
48"
54"
60"
.533
.552
.568
.593
.595
.550
.569
.585
.600
.612
.565
.584
.600
.615
.627
.576
.595
.611
.626
.638
.591
.610
.626
.641
.653
.599
.618
.634
.649
.661
.609
.628
.644
.659
.671
.620
.639
.655
.670
.682
.630
.649
.665
.630
.692
.638
.657
.673
.688
.700
.665
.684
.700
.715
.727
.679
.698
.714
.729
.741
.693
.712
.728
.743
.755
.707
.726
.742
.757
.769
.732
.751
.767
.782
.794
.761
.780
.796
.811
.823
.798
.817
.833
.848
.860
B
A
C
Aluminum - Steel Reinforced
Cond.
Res.
Reactance (See Note 1)
Size
at
Distance "D" Between Centers of Conductors
o
50
C
MCM
18"
24"
30"
1272.0 .0851 .421
.456
.483
954.0 .1128
.439
.474
.501
795.0 .1373 .450
.485
.512
556.5 .1859 .469
.504
.531
477 .0 .216
.479
.514
.541
397 .5 .259
.490
.525
.555
336.4 .306
.500
.535
.562
266.8 .385
.514
.549
.576
AWG
4/0 .592
.630
.665
.692
3/0 .723
.670
.705
.732
2/0 .895
.690
.725
.752
1/0 1.12
.705
.740
.767
2 1.69
.714
.749
.776
4 2.57
.708
.743
.770
6 3.98
.722
.757
.784
A
B
3
D
=
C
Contact your Siemens representative about obtaining this
application. You may also download this application from
the Siemens web site (see Section 1.8). After arriving at
the website, select Products, and then the Voltage Reg-
ulator item. This application is available on the Download
page.
36"
42"
48"
54"
60"
.505
.524
.540
.555
.567
.523
.542
.553
.573
.585
.534
.553
.569
.584
.596
.553
.572
.588
.603
.615
.563
.582
.598
.613
.625
.574
.593
.609
.624
.636
.584
.603
.619
.634
.646
.598
.617
.633
.648
.660
.714
.733
.749
.767
.776
.754
.773
.789
.804
.816
.774
.793
.809
.824
.836
.789
.808
.824
.839
.851
.798
.817
.833
.848
.860
.792
.811
.827
.842
.854
.806
.825
.841
.856
.868
ABC
Siemens Energy, Inc.
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