ABB SGF - 11 Mounting of Operating Mechanism for Disconnector; Direct Mounting

11 Mounting of Operating Mechanism for Disconnector
Note : The mounting side of the operating mechanism is apparent from the position of the disconnector
operating lever (69) Figure 18.The pole on which the operating mechanism is mounted can be freely
selected. In the case of mechanical interlocking, however, the operating mechanism must always be
mounted on the pole with the interlocking segments.
Note : Make sure that the operating mechanism is in the ON position (as-delivered state). It the
operating mechanism is in the OFF position, set it to the ON position using the emergency hand crank
(39)
Caution : In the case of a motor-operated mechanism, test operations may only be carried out using
the emergency hand crank (39). Do not use a drill.
11.1 Direct Mounting
Note : Make sure that the disconnector pole is in the ON position before mounting the operating
mechanism.
Mounting steps :
1. Unpack operating mechanism (75)
2. In case of rated voltages 245 ... 300 kV and mechanical interlocking to earthing switch on contact
side (KS) : Mount operating mechanism on the spacers supplied (U = 150 mm)
3. Tighten operating mechanism, on the envisaged mounting side, to the disconnect base (2)
Figure 18
4. Mount operating lever (74) on the shaft end of the operating mechanism according to the mount
side Figure 19, Figure 20
5. Next step : Chapter 12 : Mounting of coupling of disconnector.
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1HDB 050016-YN-A