Siemens NXPLUS C - Page 252

Operation
252/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9
Bus sectionalizer panel with two three-position disconnectors: De-earthing the right-
hand busbar system
1
Initial situation
2
➭ Remove the padlock (the locking device
goes down).
3
➭ To de-earth the busbar system, open the
circuit-breaker.
4
➭ Push the interrogation lever downwards
and hold it.
5
➭ Push the left-hand control gate to the right
and hold it (the interrogation lever locks in
lower position. The left-hand actuating
opening for the READY-TO-EARTH function
opens).
6
➭ Switch the left-hand three-position
disconnector from READY-TO-EARTH to OPEN
position (insert the operating lever and turn
90° counter-clockwise).
7
➭ Remove the operating lever (the
interrogation lever and the control gate
return to their initial position).
8
➭ Push the interrogation lever downwards
again and hold it.
9
➭ Push the right-hand control gate to the left
and hold it (the interrogation lever locks in
lower position. The right-hand actuating
opening for the DISCONNECTING function
opens).
10
➭ Switch the right-hand three-position
disconnector to OPEN position.
11
➭ Remove the operating lever (the
interrogation lever and the control gate
return to their initial position).