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6.3. Manevrele de inchidere si deschidere
ale intrerupatorului (fig. 6)
Actionarea intrerupatorului poate fi facuta manual sau electric.
a) Armarea manuala a arcului
Pentru armarea manuala a arcului de inchidere, este nece-
sara introducerea completa a manivelei in orificiul (6)
si invartirea in sensul acelor de ceasornic pana apare
indicatia (7).
Forta ce trebuie in mod normal aplicata este de 130N
si nu trebuie sa depaseasca 170N.
b) Armarea electrica a arcului
La cerere intrerupatoarele pot fi prevazute cu urma-
toarele accesorii pentru actionare electrica:
– motoras de actionare pentru armarea automata a arcului
de inchidere
– bobina de anclansare
– bobina de declansare
Motorasul de actionare armeaza arcul automat dupe fiecare
operatie de inchidere. Daca tensiunea de alimentare dis-
pare motorasul de actionare porneste automat la reaparitia
tensiunii auxiliare. Este deasemenea posibil a se termina
armarea manuala a arcului.
c) Inchiderea intrerupatorului
Aceasta operatie poate fi realizata doar daca arcul de in-
chidere este complet armat.
Pentru inchiderea manuala se apasa butonul (3).
Daca intrerupatorul este prevazut cu o bobina de anclan-
sare inchiderea se poate realiza de la distanta printr-un
circuit de control. Indicatorul (4) confirma inchiderea intre-
ruptorului.
In cazul in care caruciorul a fost pus la pamant, se activeaza
cheia de blocare (in pozitia inchis) si se scoate. Aceasta va
prevenii deschiderea accidentala in timpul operatiilor de
mentenanta.
d) Deschiderea intrerupatorului
Pentru deschiderea manuala se apasa butonul (2).
Daca intrerupatorul este prevazut cu o bobina de decla-
sare aceasta manevra poate fi realizata si de la distanta.
Indicatorul (4) confirma deschiderea intrerupatorului.
6.3. Circuit-breaker closing
and opening operations (fig. 6)
Circuit-breaker operation can be manual or electrical.
a) Manual operation for spring charging
To manually charge the closing springs, it is necessary
fully insert the charging lever into the seat (6) and turn
it clockwise until the yellow indicator (7) appears.
The force which can normally be applied to the charging
lever fitted is 130 N. In any case, the maximum force which
can be applied must not exceed 170 N.
b) Electrical operation for spring charging
On request the circuit-breaker can be fitted with the following
accessories for electrical operation:
– geared motor for automatic charging of the closing springs
– shunt closing release
– shunt opening release.
The geared motor automatically recharges the springs after
each closing operation until the yellow indicator (7) appears.
Should there be no voltage during charging, the geared motor
stops and then starts recharging the springs automatically
when the voltage is on again. It is, however, always possible to
complete the charging operation manually.
c) Circuit-breaker closing
This operation can only be carried out with the closing
springs completely charged.
For manual closing, push the push button (3).
When there is a shunt closing release, the operation can
also be carried out with remote control by means of a control
circuit. The indicator (4) shows that closing has been accom-
plished.
In case of earthing truck with making capacity, activate the
key lock (in the closed position) and remove the key. This is
to prevent accidental opening operations during any main-
tenance work on the installation.
d) Circuit-breaker opening
For manual opening, push the push button (2).
When there is a shunt opening release, the operation can
also be carried out with remote control by means of a control
circuit. The indicator (4) shows that opening has been
accomplished.
647016/002 M3650 - 2000/05/24 ro-en - 11/40
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