5.1.3
IT system
In an IT line system, all of the conductors are
insulated with respect to the PE protective
conductor – or connected to the PE protective
conductor through an impedance.
There are IT systems with and without transfer
of the neutral conductor N.
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Inverter operated on an IT line system
● Inverters with integrated line filter:
– Operation on IT line systems not permissible.
● Inverter without line filter:
– Operation on all IT line systems permissible.
Behavior of the inverter when a ground fault occurs
In some instances, even for a ground fault, the inverter should still remain functional. In cases
such as these, you must install an output reactor. This prevents an overcurrent trip or damage
to the drive.
Connecting-up
5.1 Permissible line supplies
Power Module PM240-2
52
Hardware Installation Manual, 08/2017, A5E33294624B AG
Содержание SINAMICS G12
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