Siemens SINAMICS G130 Engineering Manual page 130

Fundamental Principles and System Description
Engineering Information
The system of modular, type-tested and system-tested SINAMICS S120 Cabinet Modules is electrically, thermally
and mechanically dimensioned to supply up to 6 MW of infeed power(4 • 1500 kW) into the DC busbar with a line
voltage of 690 V. This applies to both, to normal, fault-free operation and to fault scenarios such as short circuits and
ground faults in the system, particularly on the DC busbar. This capability essentially requires to take care of the
following rules:
·
Provide the recommended line-side protection in form of fuses or circuit breakers, and ensure that the circuit
breakers are correctly set for the relevant plant conditions.
·
Observe the permissible short-circuit currents of the DC busbar.
·
Comply with the required cross-sections for supply system connection, DC busbar and motor connection.
·
Comply with the recommended length and topology of the DC busbar.
·
Provide adequate air conditioning of the electrical equipment room (cooling capacity, volumetric flow).
·
Comply with the EMC installation guideline.
SINAMICS Engineering Manual – November 2015
130/528
Ó Siemens AG