Siemens SINAMICS G130 Engineering Manual page 517

4th step Option selection
Complete the motor Define options for special versions
Order No. and tests.
5th step Motor current calculation
Motor rated
Motor currents
current for torque
of 16 000 Nm in
continuous duty at
690 V
Required motor
current for max.
torque of 18 000
Nm (brief overload
torque)
Selection of the converter or the
6th step
S120 Motor Module
Rated output
Select the SINAMICS
current I
S120 system
Due to the amper-
age of 1603 A, the
current must be
distributed bet-
ween two Motor
Modules.
Derating factor for
two parallel Motor
Modules
Current required
per Motor Module
Intermediate
result for Motor
Module selection
Derating factor for
increasing the
pulse frequency to
2.5 kHz for the
900 kW Motor
Module
Max. output
current of both
Motor Modules
Selection of the
next largest Motor
Module
Derating factor for
increasing the
pulse frequency to
2.5 kHz for the
1000 kW Motor
Module
Max. output
current of both
Motor Modules
SINAMICS S120 Vector Control:
2 Single Motor Modules
Order No. 6SL3320-1TG41-0AA3
SINAMICS S120 Cabinet Modules:
2 Motor Modules
Order No. 6SL3720-1TG41-0AA3
1425 A
1603 A
≥ 1603 A
rated
802 A per
Motor Module
0.95
844 A
910 A,
900 kW
0.87
1504 A (too
low, because
1603 A is
needed!)
1025 A,
1000 kW
0.86
1675 A
(sufficient)
SINAMICS Engineering Manual – November 2015
Drive Dimensioning
Engineering Information
Further notes and alternatives
See "Special versions" Catalog D86.2 / Chapter 2.
Further notes and alternatives
See "Selection and ordering data" Catalog D86.2 / page 2/4.
(16 000/16 500) x 1470 = 1425 A
(18 000 / 16 000) x 1425 = 1603 A
Further notes and alternatives
1603/2 = 802 A
See section "Parallel connections of converters" in this
engineering manual
802/0.95 = 844 A
The derating factors are dependent on the converter type and
converter output. They can be found in the chapters on specific
unit types in this engineering manual.
2 x 910 A x 0.95 x 0.87 = 1504 A
The derating factors are dependent on the converter type and
converter output. They can be found in the chapters on specific
unit types in this engineering manual.
2 x 1025 A x 0.95 x 0.86 = 1675 A
The relevant Infeed must be selected as well.
The relevant Infeed must be selected as well.
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Ó Siemens AG