L2275
Emax UL
16/132
Doc. N°
Mod.
RH0109002
Apparatus
Scale
Page N°
Fig. 29
Fig. 28
A
B
C
a ) Positioning of the moving part in the cradle in the DISCON-
NECTED position
Lift the moving part as shown in paragraph (3) and insert it into the cradle
guide, inclining it as shown in figure 29.
The manual connection operation must allow edge (E) of the power
circuit breaker guide to slide under blocks (D) of the cradle. Remove
the lifting devices.
The position reached is stable and allows any inspections of the power
circuit breaker.
Fully push in the moving part as far as the stop in the cradle.
Close the compartment door.
7.3
Racking-in/out operation
WARNINGS
A) Open the power circuit breaker before carrying out any racking-in/out operation.
B) The power circuit breaker (moving part) and cradle are fitted with a lock which prevents the cradle being racked into power circuit breakers
with a different continuous current rating: congruence of the anti-racking-in lock must be checked by the operator before carrying out the racking-
in operation to avoid any unnecessary stress.
C) Before the racking-in operation, remove any padlock on the segregation shutters of the isolation terminals on the cradle.
Press
NOTES
In relation to the cradle, the power circuit breaker (moving part) can take
up different positions, identified as follows:
– DISCONNECTED: the moving part is inserted in the cradle WITH-
OUT connection between the power terminals and WITHOUT
coupling of the sliding contacts for the auxiliary circuits: in this position
all electrical operation of the power circuit breaker is prevented. On
the front the indicator (9, Fig. 23) indicates DISCONNECTED. The
switchgear compartment door can be closed.
– TEST CONNECTED: the moving part is inserted in the cradle
WITHOUT the connection between the power terminals, but WITH
coupling of the sliding contacts for the auxiliary circuits. In this
position, the power circuit breaker can be operated for the blank tests.
The indicator (9, Fig. 23) indicates TEST ISOLATED.
– CONNECTED: the moving part is fully inserted in the cradle WITH
connection of both the power terminals and the sliding contacts for
the auxiliary circuits. The power circuit breaker is operative. The
indicator (9, Fig. 23) indicates CONNECTED.
