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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.
– 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.
5.12.1. Unit with single-spring operating mechanism
1. Switch-disconnector closing from “open” position
a) Fit operating lever into upper hole.
b) Turn lever clockwise to “closed” position.
Fig. 23 - “Open” position with operating lever
Fig. 22 - “Open” position
Fig. 24 - “Closed” position
5.12. Switch-disconnector operating
instructions
Summary of Contents for GSec/IB
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