Siemens MJ-XL Installation And Operation Manual page 62

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 MJ-X
L
and the MJ-X automatically compensates for the line
drop when adjusting the output voltage of the regulator.
58
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
L
<REGULATOR> menu,
Aluminum - Steel Reinforced
Cond. Res.
Size at
Distance "D" Between Centers of Conductors
o
50 C
MCM 18" 24"
1272.0 .0851 .421 .456
954.0 .1128 .439 .474
795.0 .1373 .450 .485
556.5 .1859 .469 .504
477.0 .216 .479 .514
397.5 .259 .490 .525
336.4 .306 .500 .535
266.8 .385 .514 .549
AWG
4/0 .592 .630 .665
3/0 .723 .670 .705
2/0 .895 .690 .725
1/0 1.12 .705 .740
2 1.69 .714 .749
4 2.57 .708 .743
6 3.98 .722 .757
A B
3
D = A B C
C
Contact your Siemens representative about obtaining this
application. You may also download this application from
the Siemens web site. Go to www.siemenstd.com, select
Products, and then the Voltage Regulator item. This
application is available on the Download page.
Siemens Power Transmission & Distribution, Inc.
Reactance (See Note 1
30" 36" 42" 48" 54"
.483 .505 .524 .540 .555
.501 .523 .542 .553 .573
.512 .534 .553 .569 .584
.531 .553 .572 .588 .603
.541 .563 .582 .598 .613
.555 .574 .593 .609 .624
.562 .584 .603 .619 .634
.576 .598 .617 .633 .648
.692 .714 .733 .749 .767
.732 .754 .773 .789 .804
.752 .774 .793 .809 .824
.767 .789 .808 .824 .839
.776 .798 .817 .833 .848
.770 .792 .811 .827 .842
.784 .806 .825 .841 .856
60"
.567
.585
.596
.615
.625
.636
.646
.660
.776
.816
.836
.851
.860
.854
.868