Siemens SINAMICS S120 System Manual page 141

Note
The general data in the SINAMICS Low Voltage Engineering Manual should be carefully
observed.
Especially for island grids and weak grids, a grid analysis should be performed with the
following content:
• Analysis of the complete drive system, including diesel engines, with statements
regarding the total harmonic distortion factor (T
individual harmonics as a function of the customer's grid parameters. The necessary
operating modes must be taken into account.
As a result of this analysis, it may be necessary to make adaptations to the drive system,
especially the Active Interface Module.
These adaptations cannot be carried out by the region/customer, but by the manufacturer's
factory. Further, these adaptations are not part of the analysis.
The application support group in head office sales can provide support when simulating and
performing the grid analysis.
Grid infeed
System Manual, 04/2015, A5E03347436A
8.3 Active Interface Modules, air-cooled
) – along with the aptitudes of the
HD
Device overview
141