ABB V-Contact VSC Series User Manual

34
0,5mm
6.1. General procedures
All the operations regarding putting
into service must be carried out by ABB
personnel or by suitably qualified customer
personnel with in-depth knowledge of the
apparatus and of the installation.
Beforeputtingtheapparatusintoservice,carryoutthe
following operations as well as those indicated in the table:
– check that the voltage and current applied are within the
specified rated values
– check tightness of the power connections of the fixed
contactors and integrity of the isolating contacts of the
withdrawable contactors
– carefully clean the sheets and insulating parts with brushes
and clean dry cloths. Avoid using jets of compressed air
– check the earthing connection of the fixed contactors
–checkthatnoforeignbodies,suchasbitsofpacking,have
got into the moving parts
– check that the value of the power supply voltage of the circuits
isbetween85%and110%oftheratedauxiliaryvoltageofthe
apparatus
– check that the contactor vacuum interrupter has not been
damagedduetoaccidentalimpacts.Incaseofdoubt,carry
out the check indicated in paragraph 7.3. Table 4.
– make sure that all the barriers and protective shields are
correctly installed
– carry out the inspections indicated in table 3.
Oncompletionoftheoperationsindicated,checkthat
everything is put back in its original position.
The check can only be considered as passed
if all the tests indicated have had a positive
outcome.
In the case of a negative check, do not put
the apparatus into service and, if necessary,
contact ABB Service.
TAB. 3
Item inspected Procedure Positive check
1 Insulation resistance MediumvoltagecircuitWitha2500Vmegger,measurethe
insulation resistance between the phases and the exposed
conductive part of the circuit.
The insulation resistance should be at least 50
Mohm.
2 Drive.Open/closedindicator,
operationcounter(ifprovided)
Carry out a few closing and opening operations of the
contactor.
Operations and signals normal.
3
Auxiliary circuits Check that the connections to the control circuits are
correct: proceed with the relative power supply.
Operations and signals normal.
Withthecontactoropen,checkthatthethicknessbetween
the body of the contact and the stem is 0.5 mm.
Tighten the fixing screws.
6. Putting into service
NEPSI.COM - Northeast Power Systems. Inc.

ABB V-Contact VSC Series Specifications

General

Brand	ABB
Model	V-Contact VSC Series
Category	Industrial Electrical
Language	English