Punerea In Functiune - ABB HD4/ESB Series Installation And Service Instructions Manual

8. Punerea in functiune

8.1. Proceduri generale
Toate operatiile specifice de punere in functiune
!
trebuie realizate de catre personal ABB sau de
catre personalul desemnat de catre client cu conditia
ca acesta sa aiba cunostinte si experinta referitoare
la lucru cu aparate si instalatii electrice.
Daca nu se poate realiza o manevra va rugam sa veri-
ficati secventa de manevre si sa nu se forteze
realizarea manevrei.
Forta necesara pentru realizarea manevrelor este
indicata la paragraful 6.3.
Inainte de punerea echipamentului in functiune trebuie reali-
zate urmatoarele verificari:
– se va verifica etansietatea conexiunilor de putere ale termi-
nalelor intrerupatorului;
– se stabileste setarea pentru declansarea de supracurent
primita de la un releu (daca acesta este livrat);
– se verifica ca valoarea tensiunii auxiliare se incadreaza in
intervalul 85% si 110% din valoarea nominala a tensiu-
nii auxiliare necesara intrerupatorului;
– se verifica daca in mecanismul de actionare nu a fost
introdus un corp strain;
– se verifica ca exista o buna ventilati de aer la locul de
instalare a intrerupatorului pentru a prevenii supraincalzirea;
– se verifica urmatoarele:
MARIMEA DE VERIFICAT
SUBJECT OF THE INSPECTION
1
Rezistenta de izolatie.
Insulation resistance.
2
Circuitele auxiliare
Auxiliary circuits.
3
Mecanismul de actionare mecanic
Manual operating
mechanism.
PROCEDURA
PROCEDURE
Circuitele de medie tensiune
Cu un megohmetru se masoara rezistenta de izolatie dintre
faze si partile conductive ale circuitului.
Medium voltage circuits
With a 2500 V Megger, measure the insulation resistance
between phases and exposed conductive part of the circuit.
Circuitele auxiliare
Cu un megohmetru se masoara rezistenta de izzolatie
intre circuitele auxiliare si partile parcurse de curent
electric.
Auxiliary circuits
With a 500 V Megger (installed equipment permitting) meas-
ure the insulation resistance between the auxiliary circuits
and the exposed conductive part.
Se va verifica daca s-au facut conectarile corecte la
circuitele de control; se va folosii tensiunea nominala.
Check that the connections to the control circuit are correct;
proceed with relative supply.
Se vor realiza cateva manevre inchs-deschis. (vezi cap. 6).
Carry out a few closing and opening operations (see chap.
6). N.B. Supply the u/v release and the locking magnet on
the operating mechanism at the relative rated voltage (if
provided).
8. Putting into service
8.1. General procedures
All the operations regarding putting into service
!
must be carried out by ABB personnel or customer
personnel who are suitably qualified and have an in-
depth knowledge of the apparatus and installation.
If the operations are prevented, do not force the
mechanical interlocks, but check that the operation
sequence is correct.
The operating forces which can be applied are
indicated in paragraph 6.3.
Before putting the circuit-breaker into service carry out the
following operations:
– check the tightness of the power connections on the circuit-
breaker terminals;
– establish the setting of the direct solid-state overcurrent
release (if provided);
– check that the value of the supply voltage for the auxiliary
circuits is within 85% and 110% of the rated voltage of the
electrical devices;
– check that no foreign body, such as packaging, has got into
the moving parts;
– check that air circulation in the circuit-breaker installation site
is adequate so that there is no danger of overheating;
– carry out the checks indicated in the following table:
VALORI CE TREBUIE OBTINUTE
POSITIVE CHECK
Rezistenta de izolatie trebuie sa fie de cel
putin 50Mohmi si sa fie constanta in timp.
The insulation resistance should be at
least 50 M and, in any case, constant in
time.
Rezistenta de izolatie trebuie sa fie de cati-
va M
The insulation resistance should be a few
M
Semnalizari si comutari normale
Normal switchings and signallings.
Manevrele vor fi realizate corect.
The operations and relative signals occur
correctly.
647016/002 M3650 - 2000/05/24 ro-en - 33/40
si sa fie constanta in timp
and, in any case, constant in time.