ABB
38
Uniswitch Operation and
Maintenance Manual
UNIS14GB 05-02
4.4.5.2 Manual opening and closing
Figure 4.23
Preparation for operation of
branch earthing switch
• Press slide (61.7) downwards onto the operating lever recess
socket. (When the switch is closed, it is already in this position!)
If the operation is prevented, do not force the
interlock and check that the operation sequence is
correct.
Figure 4.24
Operating lever prepared for
switching on/off.
Fit operating lever (80.3) (Figure 4.24) onto shaft (61.2) (Figure 4.23),
which is now released for operation.
• Turn the lever clockwise through approx. 90° until the stop is
reached to close the earthing switch, or anti-clockwise until the stop
is reached to open the earthing switch.
• Observe the mechanical (61.9)/electrical switch position indicator.
• Remove operating lever. Slide remains open if the earthing switch is
in the closed position.
• Make sure that the operating lever is turned right up to the stop in
the opening process, to ensure that the earthing switch is in its
defined limit position. The manual operating mechanism can also be
fitted with a locking magnet.
To Next Page
Loading...
Need help?
General
