ABB V-Contact VSC Series User Manual

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7. Maintenance
Maintenance operations are aimed at ensuring trouble-free
operation of the apparatus for the longest possible time.
The following operations must be carried out in accordance
with the IEC 61208/DIN 31051 Standards:
Inspection: Assessment of the actual conditions
Servicing: Measures to be taken to maintain the specified
conditions
Repairs: Measures to be taken to restore the specified
conditions.
Notes
The following rules must be respected for all maintenance
operations:
– the relative specifications indicated in the “Standards and
specifications” chapter;
– the regulations for safety in the workplace indicated in the
“Putting into service and running” chapter;
– the regulations and specifications in the country of
installation.
7.1. General
It is good practice to keep a maintenance card and a service
book where all the operations carried out can be noted down
indetail,togetherwiththedate,descriptionoftheanomaly
andthereferencesofdataneededtoidentifytheapparatus,
etc.(seechapter2).
Experience gained in use of the apparatus will allow the
optimal time intervals for interventions to be established. In
anycase,inspectionoftheapparatusnotmorethanoneyear
after it has been put into service is recommended.
Incaseofneedandforfurtherdetails,pleaserefertowhatis
prescribedinarticle10.4.2oftheStandard(IEC62271-1).
Inanycase,foranyproblems,pleasedonothesitateto
contact us.
7.2. Handling the MAC-R2 electronic card
Management of sensitive devices outside protected areas is
considered to be “field work” and normally includes product
packing,unpacking,installationandmaintenance.
Inallthesecases,handlingthedevicesmustbecarriedout
taking care to keep the potential of your hands and that of the
worksurfaceearthed,withanequipotentialconnectiontothe
main grounding branch point.
It is advisable for the operator to wear conductive shoes and
overalls and to wear earthed conductive arm bands.
Fig. 13a-13b shows a maintenance kit consisting of an
armbandandgroundconnection,bothfittedwitha1MW
integrated resistance.
Using suitable protective means to protect the electronic
devices is an indispensable task requiring diligence and
attention. Inserting these procedures in the normal service
activities allows optimization of resources and underlines their
importance.
The main activities which allow an efficient protection system
to be maintained are:
• makingpersonnelawareoftheproblemsregarding
protectionagainstelectrostaticdischarges,withreference
totheIEC61340-5-1Standards(theseproblemsareoften
unknown or underrated)
• trainingpersonnelincorrectuseofprotectionequipment
and on its perfect working order
• selectingprotectionmaterialssuitablefortheeffective
production requirements and using them
• markingtheprotectedareaandhighlightingthepresenceof
sensitive devices so as to attract the attention of operators
on correct use of the protection devices
• techniciansmustalwayssetanexamplebyrespectingthe
rules and using protection devices appropriately
Observe the following basic rules:
• avoidusingtoolswhichareunsuitableforremovingthe
electroniccards(e.g.screwdrivers,etc.)
• handlingtheelectroniccardduringmaintenanceor
replacement operations must be limited to the minimum
time possible
• alwaysholdtheelectroniccardattheedges
• avoidtouchingthecomponentsmountedonthecard
• payattentionwhencablesorconnectorshavetobe
connected or disconnected
• avoidbendingthecardwhileinsertingitinitsseatorduring
connector cabling
• avoiddamagingtheconnectors,aligningthepinsbefore
connecting the cable
Fig. 16
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