Siemens SINAMICS GM150 Operating And Installation Instructions page 220

Maintenance
9.7 Repairs
4. Remove the fixing screws
5. Remove the transformer.
Figure 9-14
Installing the precharging transformer
1. Remove the paint from at least one screw position on the base brackets. This is where the
2. Install the new transformer in the reverse order to when you removed it.
3. Check that the precharger is working correctly.
220
Replacing the precharging transformer
transformer will be grounded.
④
at the front and rear on the base brackets.
SINAMICS GM150 6SL3815-2LN41-4AA2
Operating Instructions 04/2017