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5.12. Switch-disconnector operating
instructions
– Once started, all the operations must be
completed and the lever removed from its
operating seat.
– The operations must be performed with the
normal actuating force using the dedicated
operating lever (< 200 N). If the operations
are obstructed, do not force the mechanical
interlocks but check that the operating
sequence is correct.
– The locks are sized to withstand a maximum
400 N actuating force using the dedicated
operating lever, without permanent
deformation or breakage occurring.
General information
The blades of the earthing switch are operated in the manual
mode only, while operation of the switch-disconnector can be
either manual or manual/motor-operated. In this latter case,
the spring is loaded by a motor operated by pushbuttons on
the panel front. Insertion of the operating lever cuts off the
power supplied to the motor.
For the GSec/IB types, the earthing switches on the supply
side and on the load side of the fuses and circuit-breaker,
respectively, have a single operating seat since they are
mechanically connected to each other.
WARNING
The lever of disconnectors equipped with
motors must be removed from its operating
seat before proceeding with opening/closing
operations using pusbuttons.
NOTE
When using the operating lever, turn it
approximately 85-90 degrees to set the
disconnector to the line position and 170-180
degrees for earthing.
5.12.1. Unit with single-spring operating mechanism
1. Switch-disconnector closing from "open" position
Fig. 22 - "Open" position
a) Fit operating lever into upper hole.
b) Turn lever clockwise to "closed" position.
Fig. 23 - "Open" position with operating lever
Fig. 24 - "Closed" position
21
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