Medium Voltage Products V-Contact Medium voltage …

1 Medium Voltage ProductsV-ContactMedium Voltage vacuum contactors 3912339434559631677 DESCRIPTIONCONTACTOR SELECTION AND ORDERING 2 UNIMOTOR ENCLOSURE SELECTION AND ORDERINGPOWERCUBE UNITSSPECIFIC PRODUCT CHARACTERISTICSOVERALL DIMENSIONSELECTRIC CIRCUIT DIAGRAM231 General4 Available versions5 Fields of application6 Quality Assurance System6 Environmental Management System6 Health and Safety Management System6 Test laboratory6 Compliance with Standards6 Approvals6 Operating characteristics6 Main technical characteristics6 Electrical life6 Interruption principle7 Technical MV V-Contact series are apparatus suitablefor operating in They are normally used tocontrol users requiring a high number of hourlyoperations.

2 The contactors basically consist of amoulded resin monobloc containing the vacuuminterrupters, the moving parts, the electromagnet,the multi- Voltage control feeder and the monobloc is the support for assembly of thefuse-holder frame. Closing of main contacts iscarried out by means of the control is carried out by means of a specialcounteracting is compact and sturdy and ensuresvery long electrical and mechanical life, evenwithout accessories allow the contactor to be easilypersonalised and facilitate stock V-Contact contactors are interchangeable withthe withdrawable VRC series contactors andguarantee the same performances are covered(Check interchangeability of the electric diagram).

3 Retrofit kit for the enclosure, available on request,is needed for the UniMotor for UniMotor for CBE/PowerCube versionsThe V-Contact are fitted with electrical latching asstandard and are available for rated voltages kV (V7) and 12 kV (V12), in the followingversions: fixed (which can be supplied, on request, with afuse-holder frame) single-pole fixed (for earthing the star centre of the transformers - application of the fuse-holderframe is not provided) withdrawable for CBE enclosure andPowerCube unit withdrawable for UniMotor enclosure andswitchgear withdrawable for ZS1 and UniGear ZS1 withdrawable versions consist of acontactor fitted with a withdrawable truck andpower circuit isolating fuse-holder frame is standard for withdraw-able contactors, on request for fixed contactorsand is normally preset for installation of fuses withdimensions, average type of striker and electricalcharacteristics in compliance with CENELEC EN60282-1 (94) contactors can be coupled with the followingfuses.

4 V7 with fuses from 6 A to 450 A (up to 315 A for motor protection; up to 450 A for capacitor bank protection) V12 with fuses from 6 A to 200 series series fuse-holder frames are fitted with an auto-matic opening device when even a single fuseblows. The same device also prevents closure ofthe contactor in the case when even a single fuseis of applicationThe V-Contact series of contactors are used forcontrolling electrical apparatus in industry, in theservice sector, in the marine sector, etc. Thanks tothe vacuum interrupter breaking technique, thecontactors can operate in particularly difficultenvironments.

5 They are suitable for control andprotection of motors, transformers, power factorcorrection banks, switching systems, with suitable fuses, they can be used incircuits with fault levels up to 1000 with StandardsThe V-Contact contactors comply with the Stand-ards of the major industrialised countries and inparticular with: IEC 60470 (2000) and IEC 632-1 (1978) for thecontactor IEC 282-1 / CENELEC EN 60282-1 (1994) forthe fuses IEC 298 for the contactors are approved by RINA, andDNV shipping characteristics Ambient temperature: 5 C .. + 40 C Relative humidity:< 95 % Altitude.

6 < 1000 m other conditions, please contact technical characteristics Chopping current value A Maintenance-free High number of operations Long electrical and mechanical life Direct checking of contact wear Remote control Possibility of integration in computerised controlsystems Suitable for installation in prefabricated substa-tions and switchgear Multi- Voltage lifeThe electrical life of V-Contact contactors isdefined in category AC3 with 100,000 operations(closing-opening), interrupted current 400 A,closing current kA, and cos = Assurance SystemCertified by an external independent organizationas complying with ISO 9001 Management SystemCertified by an external independent organizationas complying with ISO 14001 and Safety Management SystemCertified by an external independent organizationas complying with OHSAS 18001 laboratoryAccredited by an external independent organiza-tion as complying with UNI CEI EN ISO/IEC version interrupters3 Terminals4 Support5 Feeder6 Auxiliary contacts7 Closing electromagnetsInterruption principleThe main contacts of the contactor operate

7 Insidethe vacuum interrupters (the level of vacuum isextremely high: 13 x 10-5 Pa).On opening, there is rapid separation of the fixedand moving contacts in each contactor of the contacts, generated at themoment they separate, causes formation ofmetallic vapours which allow the electric arc to besustained up to the first zero current passage. Onpassage of zero current, cooling of the metallicvapours allows recovery of high dielectric rigidityable to withstand high values of return Voltage . Inthe version for motor switching, the value of thechopped current is less than A with extremelylimited cross-section of the vacuum housing2 Seal diaphragm3 Metal screen4 Moving contact5 Fixed contact81I1V1I2V2I3V3 IemCI1V1I2V2I3V3 IemODESCRIPTIONO scillogram of short-circuit test TravelContactor: V-Contact V7 kVCurrent:4000 AV1 - V2 - V3: R-S-T phasevoltageI1 - I2 - I3: R-S-T phasecurrentIem:Controlelectromagnetcurr entC:Circuit closureO.

8 Circuit interrup-tionOscillogram of short-circuit test TravelTr a v e lTr a v e lTechnical documentationFor more in-depth knowledge of the technical andapplication aspects of the V-Contact series contactors,the following technical catalogues are available: UniGear switchgearCode 1 VCP000138 UniMotor switchgearCode 1 VCP00007992 General characteristics10 Standard fittings11 Contactor ordering codes12 Accessory ordering codes13 CONTACTOR SELECTION AND ORDERING10 CONTACTOR SELECTION AND ORDERINGG eneral characteristicsRated voltageRated insulation voltageWithstand Voltage at 50 HzImpulse withstand Voltage (1)Rated frequencyRated service current (2)Short-time withstand currentShort-time withstand current for 1 sShort-time withstand current for 30 sRated peak currentRated short-circuit time (tk)Breaking capacity up to (Isc)

9 Making capacity under short-circuit up to (Ima)Rated valuesContactor with electrical latching (4)Contactor with mechanical latching (5)Rated maximum overcurrent wisthand for 1/2 period (peak value)Rated load and overload characteristics in category of use:(Category AC4) 100 closing operations(Category AC4) 25 opening operationsRated Voltage of the operating devices and auxiliary circuitsFeeder type 1 (24 .. 60 DC)Feeder type 2 (100 .. 250 AC-DC)Normal currentElectrical life (category AC3) (6)Electrical life at rated current (electrical latching)Coordination with protection devices against short-circuitApparatus wear classification (type)Breaking capacity under short-circuit (single cycle O-3min-CO-3min-CO)Making capacity under short-circuit (single cycle O-3min-CO-3min-CO)Limit above which the fuse blows (10)Values and characteristicsV-Contact V7 Reference to IEC60470 [kV]Ud (1 min)

10 [kV]Up [kVp]fr [Hz]Ie [A]Ik [A]Ik [A]Ip [kA peak ]tk [s]Isc [kA]Ima [kA][ ][ ][kA][A][A]Ith [A][A][A peak][A] , , , , , 9003005540004000400100,0001,000,000(7)C6 00015000 900300 40004000400 (7)C600015000 (3)50 (3)900300 40004000(2) (7)C ,2/7, .. 2515 .. 2040 .. 8025/405545398 x 365 x 350636 x 532 x 600508 x 383 x 768 Ultimate performances for (at a Voltage of):- motors- transformers- capacitorsUltimate performances for back-to-back capacitor banks- rated current- maximum transient capacitor bank switching-in current- maximum transient capacitor bank switching-in frequencyOpening time with electrical latching (8)Opening time with mechanical latching (8)Closing time (8)Weightsfixed / fixed with fuse-holders (9)withdrawable for CBE, CBF, PowerCube, UniGear ZS1 type (9)withdrawable for UniMotor (9)