Connecting Auxiliary Circuits - Siemens NXPLUS C Installation And Operating Instructions Manual

Installation
15.5

Connecting auxiliary circuits

The circuit-breaker switchgear NXPLUS C Wind is delivered with operating and control
equipment as ordered.
The operating and control equipment as well as the terminals in the switchgear are identified
in the same way as in the associated circuit diagrams.
If the low-voltage compartment is installed later, the connections of the auxiliary circuits are
completed on site.
Fig. 100: Auxiliary circuits in the 600 mm low-voltage compartment
Lay, fix and connect the external cables in accordance with the national standards and
specifications (conductor, shielding, earthing).
There are wiring ducts on the right and on the left inside the cable compartment. The left-
hand duct is left empty at the factory and can be used for external cables. The right-hand duct
contains the internal panel wiring provided at the factory. For zero-sequence current
transformers in the cable basement, their cables are lead through the right-side cable duct.
Lay the external cables in the left-hand wiring duct and fix them with cable straps.
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802-9074.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C Wind • Revision 05 109/172