Connection Of Converters To Grounded Systems (Tn Or Tt) - Siemens SINAMICS G130 Engineering Manual
Sinamics - low voltage
sinamics drives
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Also See for SINAMICS G130:
- List manual (1976 pages) ,
- Operating instructions manual (610 pages) ,
- Engineering manual (396 pages)
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Fundamental Principles and System Description
Engineering Information
Output
Frame
power
size
SINAMICS
S120 ALM
at 400 V
or 690 V
[ kW ]
[ - ]
SINAMICS S120 ALM + AIM / 380 V – 480 V 3AC
132
FX
160
FX
235
GX
300
GX
300
GXL
380
HX
380
HXL
450
HX
500
HX
500
HXL
630
JX
630
JXL
800
JX
900
JX
900
JXL
SINAMICS S120 ALM + AIM / 500 V – 690 V 3AC
630
HX
630
HXL
800
JX
800
HXL
900
HXL
1100
JX
1100
JXL
1400
JX
1400
JXL
1700
JXL
1) These values apply to ALM+AIM combinations in Chassis format and do not take in account line-side fuse switch disconnectors or circuit breakers
2) These values apply to ALM+AIM combinations in Cabinet Modules format with fuse switch disconnectors including 3NE1 fuses in the LCM
3) These values apply to ALM+AIM combinations in Cabinet Modules format with circuit breaker in the LCM
SINAMICS S120 ALM+AIM: Maximum and minimum line-side short-circuit currents
1.2.5
Connection of converters to grounded systems (TN or TT)
On SINAMICS units connected to grounded TN or TT systems, it is basically possible to connect a ground fault
monitor capable of early detection of high-impedance ground faults (universal-AC/DC-sensitive differential current
monitor or Residual Current Monitor RCM) to the converter input. However, this ground fault monitor is relatively
complicated to install owing to the need for a summation current transformer in the mains feeder cable. Furthermore,
the response threshold of the monitor must be adjusted according to the relevant plant conditions. This means, for
example, on drives with long shielded motor cables in the power range of the SINAMICS converters described in this
engineering manual, the response thresholds of 30 mA or 300 m which would be required to ensure personnel safety
and fire protection are not technically feasible (see also section "Line filters", subsection "Magnitude of leakage or
interference currents"). For this reason, it is not normal practice to use a ground fault monitor in the power range of
the SINAMICS converters described in this manual. However, as described above, suitable protection must be
provided on the line side to ensure that the substantial ground fault current caused by a low-impedance ground fault
or short circuit in the device is promptly interrupted.
SINAMICS Engineering Manual – November 2015
44/528
Ó Siemens AG
Rated
Maximum
input current
short-circuit current
[ A ]
[ kA ]
1
210
65
/ 65
1
260
65
/ 65
1
380
65
/ 50
1
490
65
/ 50
1
490
65
1
605
65
/ 50
1
605
65
1
745
84
1
840
84
/ 84
1
840
84
1
985
84
/ 84
1
985
84
/ 84
1260
170
1
1405
170
/ 100
1
1405
170
/ 100
1
575
65
/ 50
1
575
65
1
735
84
/ 50
1
735
84
1
810
84
1
1025
170
/ 85
1
1025
170
/ 85
1
1270
170
/ 85
1
1270
170
/ 85
1
1560
200
/ 85
Minimum
short-circuit
current
[ kA ]
2
3.0
2
3.6
2
5.2
2
8.0
8.0
2
9.2
9.2
8.8
3
1
3
10.4
/ 2.0
10.4
3
1
3
16.0
/ 2.0
3
1
3
16.0
/ 2.0
1
21.0
3
1
3
21.0
/ 3.2
3
1
3
21.0
/ 3.2
2
8.4
8.4
2
10.5
10.5
16.0
3
1
3
16.0
/ 2.5
3
1
3
16.0
/ 2.5
3
1
3
20.0
/ 3.2
3
1
3
20.0
/ 3.2
3
1
3
24.0
/ 3.2
Min. relative
Max. relative
short-circuit
short-circuit
power
voltage
RSC
v
min
k max
[ - ]
[ % ]
14.3
7.0
13.8
7.2
13.7
7.3
16.3
6.1
16.3
6.1
15.2
6.6
15.2
6.6
11.8
8.5
1
3
1
3
12.4
/ 2.4
8.1
/ ≈ 10
12.4
8.1
1
3
1
3
16.2
/ 2.0
6.2
/ ≈ 10
1
3
1
3
16.2
/ 2.0
6.2
/ ≈ 10
16.7
6.0
1
3
1
3
15.0
/ 2.3
6.7
/ ≈ 10
1
3
1
3
15.0
/ 2.3
6.7
/ ≈ 10
14.6
6.8
14.6
6.8
14.3
7.0
14.3
7.0
19.8
5.1
1
3
1
3
15.6
/ 2.4
6.4
/ ≈ 10
1
3
1
3
15.6
/ 2.4
6.4
/ ≈ 10
1
3
1
3
15.7
/ 2.5
6.4
/ ≈ 10
1
3
1
3
15.7
/ 2.5
6.4
/ ≈ 10
1
3
1
3
15.4
/ 2.1
6.5
/ ≈ 10
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