Siemens SINAMICS S120 Engineering Manual page 21
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Also See for SINAMICS S120:
- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
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1 Engineering SINAMICS S120 Booksize
Medium-voltage line supply:
–
Inductance value per unit length of the medium-voltage cable according to data sheet information
L'
MV line
–
Length of the medium-voltage cable
l
MV line
-
specific resistance of the medium-voltage cable
ρ
MV
-
Conductor cross-section of one phase of the medium-voltage connection
q
MV
7
This value is very dependent on the geometrical structure of the cable and/or the conductor. The following approximate values can be used if more precise data are not available:
µ��
0.25
for cables and conductors,
��
µ��
0.38
for busbars,
��
µ��
1.05
for outdoor overhead cables
��
8
specific resistances of copper, aluminum and aluminum alloy
2
1
����
Ω
for copper
54
��
2
1
����
Ω
for aluminum
34
��
2
1
����
Ω
for aluminum alloy
31
��
Engineering manual S120 Booksize
Entry-ID: 109808992,
V1.0,
04/2022
© Siemens AG 2022 All rights reserved
µ��
=
1.0500
��
=
5.0
km
8
��
����
��
=
0.02941
��
=
120
mm²
7
21
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