Installing A Voltage Transformer On The Busbar - Siemens NXPLUS C Installation And Operating Instructions Manual

Installation
Fig. 42: Voltage transformer installed on the busbar
Fig. 43: Detail view from the front: Connection of the busbar to the voltage
transformer
102/266
Fig. 41: Wire routing (air-insulated metering panel)
15.7

Installing a voltage transformer on the busbar

The voltage transformers are delivered separately. For installation, the busbars must be
installed and accessible from the front. If required, remove any installed low-voltage
compartments. If a damping resistor is present, the damping resistor must be removed from
the low-voltage compartment.
Revision 02 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 806-9004.9
① Vertical wiring duct (only for
connecting wires with steel tube)
② Low-voltage compartment
③
Right-hand wiring duct
① Voltage transformer
② Storage box
③
Voltage transformer frame
④ M6 bolt with contact washer
⑤ Plain washer (DIN EN ISO 7093-1-8)
⑥ M8x20 bolt-and-washer assembly
Cast-resin bushing of the voltage transformer
⑦
⑧ Centering nut (tightening torque: 10 Nm)
⑨ M12* hexagon nut
(tightening torque: 50 Nm)
⑩
Conical spring washer*
⑪ Contact half-shell*
⑫ M12/M16 threaded stud
(tightening torque: 10 Nm)*
⑬
End adapter or cross adapter
⑭ Cover frame
* Component pre-installed on end adapter or
cross adapter