GE Industrial Solutions Entellisys Low Voltage Switchgear - Manuel (Page 39)

Entellisys Low Voltage Switchgear
39
Fig. 5-4. Rotate the racking handle while looking at the indicator
barrel
5-3 Removing the EntelliGuard E Circuit
Breakers
WARNING: Do not stand under the circuit breaker during the
lowering operation.
ADVERTISSEMENT: Il est interdit de se tenir sous le disjoncteur
durant l’opération de levage.
CAUTION: When using the switchgear hoist, do not unwind the
cable completely from the drum. To lift the breaker, turn the
hoist operating crank clockwise. To lower the breaker, turn the
hoist operating crank counter-clockwise.
ATTENTION: Il ne faut pas dérouler complètement le câble du
cylindre lorsque l’on utilisse le treuil du dispositif de
commutation. Tourner la manivelle opérant le treuil dans le sens
des aiguilles d’une montre pour soulever le disjoncteur. Tourner
la manivelle opérant le treuil dans le sens contraire des aiguilles
d’une montre pour abaisser le disjoncteur.
To remove the EntelliGuard E circuit breaker, proceed as follows:
1. Open the breaker by pressing the OFF/OPEN button.
2. Use a slot screwdriver the open the racking shaft door by
turning clockwise. Insert the racking handle and rotate it
counterclockwise until the breaker travels from CONNECTED
through TEST to the DISCONNECTED position, as shown by the
position indicator. This operation should be performed with
the door closed. If the breaker closing spring is fully charged,
it will be automatically discharged when the breaker is moved
to the WITHDRAWN position.
3. Open the compartment door and fully extend the drawout
rails. Roll breaker out to rail stops. This is the WITHDRAWN
position.
4. Before proceeding, visually check the breaker's spring charge
and close indicators to verify that breaker is open and the
springs are discharged.
5. Attach the lifting device and raise breaker off drawout rails.
6. Push the drawout rails back into the compartment.
7. Pull the breaker forward until the primary disconnects clear
the compartment.
8. Lower the breaker onto a flat surface free of protrusions that
could damage the breaker's internal parts.