Siemens NXAIR - Charging; Discharging the Spring Energy Store Manually

Panels with motor operating mechanism control
110-0134.9 / 14 NXAIR / ≤ 40 kA 405
NOTICE
Conflicting operation
The requirement of setting the panel to either local or remote control prevents
operating the panel locally and centrally at the same time.
For any local operations ─ manual or electrical ─ set the panel to local
control, for example by switching the local-remote switch to LOCAL
position.
NOTICE
Covered control elements
For safety reasons, the actuating opening for closing the circuit-breaker is covered
by the control door.
Open the control door to uncover the actuating opening on the high-
voltage door.
The procedure for closing the circuit-breaker manually in panels with motor operating mechanism control is
identical with the procedure in panels without motor operating mechanism control.
For closing the circuit-breaker manually, see chapter 10.12.
27.13 Charging / discharging the spring energy store manually
Charging the spring energy store manually is carried out by inserting a hand crank through an actuating
opening in the high-voltage door, and turning it subsequently. Discharging can only be done manually. It is
carried out by pushing a rod alternately through the actuating openings for opening / closing the circuit-
breaker.
Charging and discharging manually can only be carried out when the control door is open. However, the
indicators for the circuit-breaker position and the closing spring state can still be seen through an inspection
window after closing the control door.
Fig. 731: Circuit-breaker type 3AE1:
Actuating openings for
charging / discharging
the spring energy store
Fig. 732: Circuit-breaker type 3AE5:
Actuating openings for
charging / discharging
the spring energy store
(1)
Opening for charging
the spring energy store
in the circuit-breaker
manually (covered)
(2)
Actuating opening for
closing the
circuit-breaker
(3)
Actuating opening for
opening the
circuit-breaker
1
3
2