vacuum cntactor

8/15/2019 vacuum cntactor

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DESCRIPTION

CONTACTOR SELECTION AND ORDERING 2

CBE ENCLOSURE SELECTION AND ORDERING

UNIMOTOR ENCLOSURE SELECTION AND ORDERING

POWERCUBE MODULE SELECTION AND ORDERING

SPECIFIC PRODUCT CHARACTERISTICS

OVERALL DIMENSIONS

ELECTRIC CIRCUIT DIAGRAM


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General 4

Available versions 5

Fields of application 6

Quality Assurance System 6

Environmental Management System 6

Health and Safety Management System 6

Test laboratory 6

Compliance with Standards 6

Approvals 6

Operating characteristics 6

Main technical characteristics 6

Electrical life 6

Interruption principle 7

Technical documentation 8

DESCRIPTION


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Fixed.

DESCRIPTION

GeneralThe MV V-Contact series are apparatus suitablefor operating in a.c. They are normally used tocontrol users requiring a high number of hourlyoperations. The contactors basically consist of amoulded resin monobloc containing the vacuuminterrupters, the moving parts, the electromagnet,the multi-voltage control feeder and the auxiliaryaccessories.The monobloc is the support for assembly of thefuse-holder frame. Closing of main contacts is

carried out by means of the control electromagnet.Opening is carried out by means of a specialcounteracting spring.Construction is compact and sturdy and ensuresvery long electrical and mechanical life, evenwithout maintenance.The accessories allow the contactor to be easilypersonalised and facilitate stock management.The V-Contact contactors are interchangeable withthe withdrawable VRC series contactors andguarantee the same performances are covered(Check interchangeability of the electric diagram).Retrofit kit for the enclosure, available on request,is needed for the UniMotor version.

Withdrawable for UniMotor enclosure.

Withdrawable for CBE/PowerCube enclosure.


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DESCRIPTION

Fields 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. They are suitable for control andprotection of motors, transformers, power factorcorrection banks, switching systems, etc.Fitted with suitable fuses, they can be used incircuits with fault levels up to 1000 MVA.

Compliance 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 the

contactor– IEC 282-1 / CENELEC EN 60282-1 (1994) for

the fuses– IEC 298 for the enclosures.

ApprovalsThe contactors are approved by RINA, LL.RR. andDNV shipping registers.

Operating characteristics• Ambient temperature: – 5 °C ... + 40 °C• Relative humidity: < 95 %• Altitude: < 1000 m a.s.l.For other conditions, please contact us.

Main technical characteristics• Chopping current value ≤ 0.5 A• Maintenance-free• High number of operations• Long electrical and mechanical life• Direct checking of contact wear• Remote control• Possibility of integration in computerised control

systems• Suitable for installation in prefabricated substa-

tions and switchgear• Multi-voltage feeder.

Electrical lifeThe electrical life of V-Contact contactors isdefined in category AC3 with 100,000 operations(closing-opening), interrupted current 400 A,closing current 2.4 kA, and cos ϕ = 0.35.

Quality Assurance SystemCertified by an external independent organizationas complying with ISO 9001 Standards.

Environmental Management SystemCertified by an external independent organizationas complying with ISO 14001 Standards.

Health and Safety Management SystemCertified by an external independent organizationas complying with OHSAS 18001 Standards.

Test laboratoryAccredited by an external independent organiza-tion as complying with UNI CEI EN ISO/IEC 17025Standards.

Fixed version V-Contact.


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1 Monobloc2 Vacuum interrupters3 Terminals4 Support5 Feeder6 Auxiliary contacts

7 Closing electromagnets

Interruption principleThe main contacts of the contactor operate 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 interrupter.Overheating 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 metallic

vapours 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 0.5 A with extremelylimited overvoltages.

Schematic cross-section of the vacuum interrupter.

1 Ceramic housing2 Seal diaphragm3 Metal screen4 Moving contact5 Fixed contact


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DESCRIPTION

Oscillogram of short-circuit test Travel

Contactor: V-Contact V7Voltage: 7.2 kVCurrent: 4000 AV1 - V 2 - V 3: R-S-T phase

voltageI1 - I2 - I 3: R-S-T phase

currentIem: Control

electromagnetcurrent

C: Circuit closureO: Circuit interrup-

tion

Oscillogram of short-circuit test Travel

Travel

Travel

Technical documentationFor more in-depth knowledge of the technical andapplication aspects of the V-Contact series contactors,the following technical catalogues are available:– UniGear switchgear Code 1VCP000138– UniMotor switchgear Code 1VCP000079


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General characteristics 10

Standard fittings 11

Contactor ordering codes 12

Accessory ordering codes 13

CONTACTOR SELECTION AND ORDERING


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General characteristics

Rated voltageRated insulation voltage

Withstand voltage at 50 HzImpulse withstand voltage (1)

Rated frequencyRated service current (2)Short-time withstand current

Short-time withstand current for 1 s

Short-time withstand current for 30 sRated peak currentRated short-circuit time (tk)Breaking capacity up to (Isc)Making capacity under short-circuit up to (Ima)Rated values

Contactor 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 operations

Rated 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 characteristics V-Contact V7Reference to IEC60470 Standard

Contactor

3.4.105

Starter

3.4.110

Combined withfuses

3.4.110.9

Ur [kV]

Ud (1 min) [kV]Up [kVp]

fr [Hz]Ie [A]

Ik [A]

Ik [A]Ip [kA peak ]

tk [s]Isc [kA]Ima [kA]

[op./hour][op./hour]

[kA]

[A][A]

Ith [A]

[A][A peak]

[A]

4.1

4.24.24.3

4.101

4.5

4.54.64.7

4.1074.107

4.1024.102

–

4.103, 4.1044.103, 4.104

4.8, 4.9

4.4.1014.1064.1064.107

4.107.34.107, 6.1044.107, 6.104

4.107.2

7.2

2060

50-60400

6000

2500151––

90030055

40004000

400100,000

1,000,000(7)C

600015000

–

7.2

2060

50-60400

6000

2500151––

900300

–

40004000

400––

(7)C

600015000

–

7.2

2060

50-60400

6000

2500151

50 (3)50 (3)

900300

–

40004000

(2)––

(7)C––

5000

2.2/2.5

1000

1100

1000

3.3

1500

1600

1500

3.6/5

1500

2000

1500

6,2/7,2

3000

4000

3000

2508

2.515 ... 2515 ... 2040 ... 80

25/405545

398 x 365 x 350636 x 532 x 600508 x 383 x 768

Ultimate performances for (at a voltage of):- motors- transformers- capacitors

Ultimate performances for back-to-back capacitor banks- rated current- maximum transient capacitor bank switching-in current- maximum transient capacitor bank switching-in frequency

Opening time with electrical latching (8)Opening time with mechanical latching (8)Closing time (8)Weights fixed / fixed with fuse-holders (9)

withdrawable for CBE, CBF, PowerCube, UniGear ZS1 type (9)withdrawable for UniMotor (9)

Overall dimensionsfixed / fixed with fuse-holderswithdrawable for CBE, CBF, PowerCube, UniGear ZS1 typewithdrawable for UniMotor

Tropicalisation

[kV][kW]

[kVA][kVAr]

[A][kA]

[kHz][ms][ms][ms][kg][kg][kg]

(HxLxD) [mm](HxLxD) [mm]

(HxLxD) [mm]

IEC 721-2-1


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Standard fittingsAs standard, the contactors are fitted with:– operating mechanism with electrical latching– mechanical open/closed signalling– six pairs of open/closed signalling contacts (six

break contacts plus six make contacts)– multi-voltage feeder ( type 1: 24-60 V d.c. for

V-Contact V7 only; type 2: 100-250 V d.c./a.c.50-60 Hz)

– basic cabling with socket– cabled plug with 3 m long cord.And, moreover, only for withdrawable contactor:– plug connector

– fuse-holders, with electric release device presetfor installation of fuses in compliance with DINStandards with cartridge length e = 442 mm , orBS Standards with cartridge length L = 553 mm .For shorter fuses, special adaptation kits mustbe ordered (see accessories)

– tool for removing the DIN type fuses– mechanical release device for fuse intervention.

(1) 75 kV BIL only for fixed V12 contactor.For the withdrawable versions for UniGearor PowerCube switchgear or for PowerCubeor CBE enclosures, the 75 kV BIL insulationlevel is available on request.

(2) Rated service current defined for fixedcontactors; for the contactors coordinatedwith fuses, the limits are as follows:- 7.2 kV in ABB 250 A units with maximum

fuse size (315 A)- 12 kV in ABB 160A units with maximum

fuse size (200 A).(3) For the breaking capacity of the coordi-

nated fuses, please see the followingpages.

(4) Mechanical life (opening/closing cycles)1,000,000.

(5) Mechanical life (opening/closing cycles)250,000.

(6) Electrical life which can be obtainedfollowing the programmed maintenance planin the product instruction manual.

(7) Coordination is guaranteed with the types offuses indicated on the following pages.

(8) Lower and upper limits.(9) Fuses excluded (the maximum fuse size

weighs 5.5 Kg).(10) This is the current value determined by the

intersection of the time-current trip curve oftwo protection devices; in this case thefuse and any thermal protection relay.

(11) Application of overvoltage surge arrestersor RC filters is necessary.

Fixed version V-Contact.

12

2860

50-60400

6000

2500151––

90030055

40004000

–

400100,000

1,000,000(7)C

40008000

–

12

2860

50-60400

6000

2500151––

900300

–

40004000

–

400––

(7)C

40008000

–

12

2860

50-60400

6000

2500151

50 (3)50 (3)

900300

–

40004000

–

(2)––

(7)C––

5000

2308

2.515 ... 2515 ... 2040 ... 80

25/405545

398 x 365 x 350636 x 532 x 600508 x 383 x 768

V-Contact V12Contactor

3.4.105

Starter

3.4.110

Combined withfuses

3.4.110.9

1250005000

4800 (11)


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V-ContactV-Contact


Contactor ordering codes

Fixed with electrical latching

U [kV] In [A] Feeder type V-Contact 1VCF

7,2 400 1 (24 ... 60 V –) V7 304111R0100

2 (100 ... 250 V – / ~) V7 304111R0200

12 400 2 (100 ... 250 V – / ~) V12 304112R0200

Withdrawable with electrical latching for CBF, CBE


7,2 400 1 (24 ... 60 V –) V7/C 304161R0100

2 (100 ... 250 V – / ~) V7/C 304161R020012 400 2 (100 ... 250 V – / ~) V12/C 304162R0200

Fixed single-pole with electrical latching (transformer star centre earthing)


7,2 400 1 (24 ... 60 V –) VU7 304211R0100

2 (100 ... 250 V – / ~) VU7 304211R0200

12 400 2 (100 ... 250 V – / ~) VU12 304212R0200

Withdrawable with electrical latching for ZS1 switchgear


7,2 400 1 (24 ... 60 V –) V7/Z 304151R0100

2 (100 ... 250 V – / ~) V7/Z 304151R0200

12 400 2 (100 ... 250 V – / ~) V12/Z 304152R0200

Withdrawable with electrical latching for UniGear ZS1 type switchgear


7,2 400 1 (24 ... 60 V –) V7/P 304181R0100

2 (100 ... 250 V – / ~) V7/P 304181R0200

12 400 2 (100 ... 250 V – / ~) V12/P 304182R0200

Withdrawable with electrical latching for PowerCube modules


7,2 400 1 (24 ... 60 V –) V7/W 304171R0100

2 (100 ... 250 V – / ~) V7/W 304171R0200

12 400 2 (100 ... 250 V – / ~) V12/W 304172R0200


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V-ContactV-Contact

Withdrawable with electrical latching UniMotor enclosures/switchgear


7.2 400 1 (24 ... 60 V –) V7/UN 304131R0100

2 (100 ... 250 V – / ~) V7/UN 304131R0200

12 400 2 (100 ... 250 V – / ~) V12/UN 304132R0200

Accessory ordering codes

Accessories which can be combined for fixed contactor

Standard fittings– operating mechanism with electrical latching

– mechanical open/closed signalling– six pairs of open/closed signalling contacts

(six break contacts plus six make contacts)– multi-voltage feeder– basic cabling with socket– plug with cord 3 m long.

N.B.: the interlock between two superimposedcontactors has to be made electrically. It allows theoperations of the two contactors to be interlockedwith each other and is suitable, for example, for usein circuits with automatic commutation.

(*) The voltage transformer receives the powersupply from the upper poles of the contactor.

Voltage transformerfor self-supply (*)

Fuse-holder and fuseintervention releasedevice. 108 mm polecentre distance, onlyup to 7.2 kV.

Operation counter

Mechanical latching

Shunt opening release

Opening pushbutton

Fuses

Fuse adapter

Application of accessories

Customer ABB

Alternativeconnectionsto the fuses


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Standard fittings– operating mechanism with electrical latching– mechanical open/closed signalling– six pairs of open/closed signalling contacts (six break contacts plus six make

contacts)

– multi-voltage feeder– basic cabling with socket– plug connector– fuse-holder, with electric release device preset for installation of fuses in compliance

with DIN Standards with cartridge length e = 442 mm or BS Standards with car-tridge length L = 553 mm .For shorter fuses, special adaptation kits must be ordered (see accessories)

– tool for removing DIN type fuses– mechanical release device for fuse intervention.

N.B.: the interlock between two superimposed contactors has to be make electri-cally. It allows the operations of the two contactors to be interlocked with each otherand is suitable, for example, for use in circuits with automatic commutation.

Connections(alternative to thefuses)

Operation counter

Position contacts

Locking magnet

Interlock with door

(V/C only)

Voltage transformer (*)

Fuse adapter

Mechanical latching


Opening pushbutton

Fuses

Customer ABB

Accessories which can be combined for withdrawable contactor - CBE and ZS1

Application ofaccessories

(*) The voltage trans-former receives thepower supply from theupper poles of the con-tactor.


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contacts)– multi-voltage feeder– basic cabling with socket– plug connector– fuse-holder, with electric release device preset for installation of fuses in

compliance with DIN Standards with cartridge length e = 442 mm or BSStandards with cartridge length L = 553 mm . For shorter fuses, specialadaptation kits must be ordered (see accessories)

– tool for removing DIN type fuses– mechanical release device for fuse intervention.– anti-racking-in lock for different rated currents. Includes the locking magnet

on the truck.

Connections(alternativeto the fuses)

Operation counter

Position contacts

Voltagetransformer (*)

Insulating barrier (**)

Fuse adapter

Mechanical latching


Opening pushbutton

Fuses

Accessories which can be combined for withdrawable contactor - UniGear ZS1 type

(*) The vol tage t rans-former receives thepower supply from theupper poles of the con-tactor.

(**) The insulating barrier ismounted in the switch-gear to guarantee theimpulse withstand volt-age up to 75 kV, forV12/P contactors.

Customer ABB



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Accessories which can be combined for withdrawable contactor - PowerCube

Standard fittings– operating mechanism with electrical latching– mechanical open/closed signalling– six pairs of open/closed signalling contacts (six break contacts plus six

make contacts)– multi-voltage feeder– basic cabling with socket– plug connector– fuse-holder, with electric release device preset for installation of fuses in

compliance with DIN Standards with cartridge length e = 442 mm or BSStandards with cartridge length L = 553 mm . For shorter fuses, specialadaptation kits must be ordered (see accessories)

– tool for removing DIN type fuses– mechanical release device for fuse intervention– anti-racking-in lock for different rated currents. Includes the

locking magnet on the truck.

Fuses

Connections(alternativeto the fuses)

Operation counter


Fuse adapter

Mechanical latching


Opening pushbutton

Customer ABB


(*) The voltage transformerreceives the power sup-ply from the upper polesof the contactor.

Isolating lock



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Accessories which can be combined for withdrawable contactor - UniMotor enclosure and switchgear

Fuses

Connections(alternative to thefuses)

Operation counter


Fuse adapter

Mechanical latching


Opening pushbutton


contacts)– multi-voltage feeder– plug connector– fuse-holder, with electric release device preset for installation of fuses in compliance

with DIN Standards with cartridge length e = 442 mm or BS Standards with car-tridge length L = 553 mm .For shorter fuses, special adaptation kits must be ordered (see accessories)

– tool for removing DIN type fuses– mechanical release device for fuse intervention.

N.B.: the interlock between two superimposed contactors has to be make electrically.It allows the operations of the two contactors to be interlocked with each other and issuitable, for example, for use in circuits with automatic commutation.

Customer ABB


(*) The voltage transformerreceives the power sup-ply from the upper polesof the contactor.


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Fuse-holder for fixed contactor and electric release device for fuse intervention

This consists of a set of three supports which allowthe medium voltage circuit protection fuses to behoused.It is normally prepared for installation of fuses incompliance with DIN Standards with dimensione = 442 mm , or BS Standard fuses with dimensionL = 553 mm . For shorter fuses, special adaptersmust be applied (see accessory 3).The fuse-holders are always combined with theelectric release device for fuse intervention.

This device makes the contactor open on interven-tion of one or more fuses and prevents its closurewhen even a single fuse is missing.The fuses must have the dimensions and strikerof average type according to DIN 43625 andBS 2692 (1975) Standards.The electrical characteristics must comply withIEC 282-1 (1974) Standards.

V7; V12

Kit Fuses Pole centre distance 1VCF

1A DIN 108 mm (V7) 309400R02511B BS 108 mm (V7) 309400R02521C DIN 150 mm (V7) 309400R02531D BS 150 mm (V7) 309400R02541E DIN 150 mm (V12) 309400R02551F BS 150 mm (V12) 309400R0256

V-Contact in fixed versionwith fuse-holder.


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The fuses are positioned in special supports to beconnected in series between the contactor and theuser. The supports can house fuses in compliancewith DIN or BS Standards.Selection of the fuses must be made according tothe characteristics of the user to be protected.

For fuse selection, see “Service conditionsdepending on the load” - chapter 5.The tables below show the fuse ordering codes.Each code identifies a single fuse.

ABB CMF type DIN Standard fuses for motor protection

V7; V12; V7/C; V12/C; V7/Z; V12/Z; V7/P; V12/P; V7/W; V12/W; V7/UN; V12/UN

Kit Un [kV] In [A] e [mm] Adapter 1VCF kA (*)

2A 3.6 100 292 3B 309401R0101 502A 3.6 160 292 3B 309401R0102 502A 3.6 200 292 3B 309401R0103 502A 3.6 250 292 3B 309401R0104 502A 3.6 315 292 3B 309401R0105 502A 7.2 63 – – 309401R0109 50

2A 7.2 100 – – 309401R0111 502A 7.2 160 – – 309401R0113 502A 7.2 200 – – 309401R0114 502A 7.2 250 – – 309401R0115 502A 7.2 315 – – 309401R0116 502A 12 63 – – 309401R0119 502A 12 100 – – 309401R0120 502A 12 160 – – 309401R0121 502A 12 200 – – 309401R0122 50

ABB CEF type DIN Standard fuses for transformer protection



2B 3.6-7.2 6 192 3A 309401R0126 502B 3.6-7.2 10 192 3A 309401R0127 502B 3.6-7.2 16 192 3A 309401R0128 502B 3.6-7.2 25 192 3A 309401R0129 502B 3.6-7.2 40 192 3A 309401R0130 502B 3.6-7.2 63 192 3A 309401R0131 502B 3.6-7.2 80 192 3A 309401R0132 502B 3.6-7.2 100 192 3A 309401R0133 50

2B 3.6-7.2 125 292 3B 309401R0134 50

(*) Fuse breaking capacity.


Fuses for power circuit


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(1) ATTENTION! The ABBCMF fuses in compliancewith BS Standards cannotbe installed.



Kit Fuse Un [kV] In [A] n x ∅∅∅∅∅ x L [mm] Adapter 1VCF kA (*)2C K81PEX 3.6 100 4 x 10 x 305 3D 309401R0201 402C K81PEX 3.6 125 4 x 10 x 305 3D 309401R0202 402C K81PEX 3.6 160 4 x 10 x 305 3D 309401R0203 402C K81PEX 3.6 200 4 x 10 x 305 3D 309401R0204 402C K81PEX 3.6 250 4 x 10 x 305 3D 309401R0205 402C K81PEX 3.6 315 4 x 10 x 305 3D 309401R0206 402C K81SDX 7.2 50 4 x 10 x 454 3F 309401R0223 452C K81SDX 7.2 63 4 x 10 x 454 3F 309401R0224 452C K81SDX 7.2 80 4 x 10 x 454 3F 309401R0225 452C K81SDX 7.2 100 4 x 10 x 454 3F 309401R0226 452C K81SDX 7.2 125 4 x 10 x 454 3F 309401R0227 452C K81SDX 7.2 160 4 x 10 x 454 3F 309401R0228 45

2C K81SDX 7.2 200 4 x 10 x 454 3F 309401R0229 452C K81SDX 7.2 225 4 x 10 x 454 3F 309401R0230 452C K81SDX 7.2 250 4 x 10 x 454 3F 309401R0231 452C K81SDX 7.2 280 4 x 10 x 454 3F 309401R0232 452C K81SDX 7.2 315 4 x 10 x 454 3F 309401R0233 45



2B 3.6-7.2 160 292 3B 309401R0135 502B 3.6-7.2 200 292 3B 309401R0136 502B 12 6 292 3B 309401R0137 502B 12 10 292 3B 309401R0138 502B 12 16 292 3B 309401R0139 502B 12 25 292 3B 309401R0140 502B 12 40 292 3B 309401R0141 502B 12 63 292 3B 309401R0142 502B 12 80 292 3B 309401R0143 502B 12 100 292 3B 309401R0144 502B 12 125 – – 309401R0145 502B 12 160 – – 309401R0146 502B 12 200 – – 309401R0147 50

GEC type BS Standard fuses for motor protection (1)



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Bussman type BS Standard fuses for motor/capacitor bank protection (2)


Kit Fuse Un [kV] In [A] n x ∅∅∅∅∅ x L [mm] Adapter 1VCF kA (*)

2D WDFHO 3.6 50 4 x 10 x 305 3D 309401R0401 502D WDFHO 3.6 63 4 x 10 x 305 3D 309401R0402 502D WDFHO 3.6 80 4 x 10 x 305 3D 309401R0403 502D WDFHO 3.6 100 4 x 10 x 305 3D 309401R0404 502D WDFHO 3.6 125 4 x 10 x 305 3D 309401R0405 502D WFFHO 3.6 160 4 x 10 x 305 3D 309401R0406 502D WFFHO 3.6 200 4 x 10 x 305 3D 309401R0407 502D WKFHO 3.6 250 4 x 10 x 305 3D 309401R0408 502D WKFHO 3.6 315 4 x 10 x 305 3D 309401R0409 502D WKFHO 3.6 355 (1) 4 x 10 x 305 3D 309401R0410 502D WKFHO 3.6 400 (1) 4 x 10 x 305 3D 309401R0411 502D WFGHO 3.6 31,5 4 x 10 x 410 3E 309401R0412 502D WFGHO 3.6 40 4 x 10 x 410 3E 309401R0413 502D WFGHO 3.6 50 4 x 10 x 410 3E 309401R0414 502D WFGHO 3.6 63 4 x 10 x 410 3E 309401R0415 502D WFGHO 3.6 80 4 x 10 x 410 3E 309401R0416 502D WFGHO 3.6 100 4 x 10 x 410 3E 309401R0417 502D WFGHO 3.6 125 4 x 10 x 410 3E 309401R0418 502D WFGHO 3.6 160 4 x 10 x 410 3E 309401R0419 50

2D WFGHO 3.6 200 4 x 10 x 410 3E 309401R0420 502D WFGHO 3.6 250 4 x 10 x 410 3E 309401R0421 502D WKGHO 3.6 315 4 x 10 x 410 3E 309401R0422 502D WKGHO 3.6 355 (1) 4 x 10 x 410 3E 309401R0423 502D WKGHO 3.6 400 (1) 4 x 10 x 410 3E 309401R0424 502D WKGHO 3.6 450 (1) 4 x 10 x 410 3E 309401R0425 502D WFNHO 7.2 25 4 x 10 x 454 3F 309401R0426 402D WFNHO 7.2 31,5 4 x 10 x 454 3F 309401R0427 402D WFNHO 7.2 40 4 x 10 x 454 3F 309401R0428 402D WFNHO 7.2 50 4 x 10 x 454 3F 309401R0429 402D WFNHO 7.2 63 4 x 10 x 454 3F 309401R0430 402D WFNHO 7.2 80 4 x 10 x 454 3F 309401R0431 402D WFNHO 7.2 100 4 x 10 x 454 3F 309401R0432 40

2D WFNHO 7.2 125 4 x 10 x 454 3F 309401R0433 402D WFNHO 7.2 160 4 x 10 x 454 3F 309401R0434 402D WKNHO 7.2 200 4 x 10 x 454 3F 309401R0435 402D WKNHO 7.2 224 4 x 10 x 454 3F 309401R0436 402D WKNHO 7.2 250 4 x 10 x 454 3F 309401R0437 402D WKNHO 7.2 315 4 x 10 x 454 3F 309401R0438 40

(1) For capacitor bankapplication only.

(2) CAUTION! The ABB CMFfuses according to BSStandards cannot beinstalled



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V7; V12; V7/C; V12/C; V7/Z; V12/Z; V7/W; V12/W; V7/P; V12/P; V7/UN; V12/UN

Kit Fuse Un [kV] In [A] n x ∅∅∅∅∅ x L [mm] Adapter SIBA Code kA (*)

2F BS-MCA 3.6 50 2 x 8 x 235 3C 3026956.50 502F BS-MCA 3.6 63 2 x 8 x 235 3C 3026956.63 502F BS-MCA 3.6 80 2 x 8 x 235 3C 3026956.80 502F BS-MCA 3.6 100 2 x 8 x 235 3C 3026956.100 502F BS-MCA 3.6 125 2 x 8 x 235 3C 3026956.125 502F BS-MCA 3.6 160 2 x 8 x 235 3C 3026956.160 50

2F BS-MCA 3.6 200 2 x 8 x 235 3C 3026956.200 502F BS-MCA 3.6 225 2 x 8 x 235 3C 3026956.224 502F BS-MCA 3.6 250 2 x 8 x 235 3C 3026956.250 502F BS-MCA 3.6 315 2 x 8 x 235 3C 3026956.315 502F BS-MCA 7.2 50 4 x 10 x 454 3F 3027156.50 502F BS-MCA 7.2 63 4 x 10 x 454 3F 3027156.63 502F BS-MCA 7.2 80 4 x 10 x 454 3F 3027156.80 502F BS-MCA 7.2 100 4 x 10 x 454 3F 3027156.100 502F BS-MCA 7.2 125 4 x 10 x 454 3F 3027156.125 502F BS-MCA 7.2 160 4 x 10 x 454 3F 3027156.160 502F BS-MCA 7.2 200 4 x 10 x 454 3F 3027156.200 502F BS-MCA 7.2 225 4 x 10 x 454 3F 3027156.224 502F BS-MCA 7.2 250 4 x 10 x 454 3F 3027156.250 50

2F BS-MCA 7.2 315 4 x 10 x 454 3F 3027156.315 50


Kit Fuse Un [kV] In [A] e [mm] Adapter SIBA Code kA (*)

2E DIN-MCA 3.6 50 292 3B 3020153.50 502E DIN-MCA 3.6 63 292 3B 3020153.63 502E DIN-MCA 3.6 80 292 3B 3020153.80 502E DIN-MCA 3..6 100 292 3B 3020153.100 502E DIN-MCA 3.6 125 292 3B 3020153.125 502E DIN-MCA 3.6 160 292 3B 3020153.160 502E DIN-MCA 3.6 200 292 3B 3020153.200 502E DIN-MCA 3.6 225 292 3B 3020054.224 502E DIN-MCA 3.6 250 292 3B 3020054.250 502E DIN-MCA 3.6 315 292 3B 3010054.315 502E DIN-MCA 7.2 50 442 - 3010853.50 502E DIN-MCA 7.2 63 442 - 3010853.63 502E DIN-MCA 7.2 80 442 - 3010853.80 502E DIN-MCA 7.2 100 442 - 3010853.100 502E DIN-MCA 7.2 125 442 - 3010953.125 502E DIN-MCA 7.2 160 442 - 3010953.160 502E DIN-MCA 7.2 200 442 - 3011054.200 502E DIN-MCA 7.2 225 442 - 3011054.224 502E DIN-MCA 7.2 250 442 - 3011054.250 502E DIN-MCA 7.2 315 442 - 3011054.315 50

SIBA type DIN Standard fuses for motor/capacitor bank protection

SIBA type BS Standard fuses for motor/capacitor bank protection




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2

Bussman type DIN Standard fuses for motor/capacitor bank protection


Kit Fuse Un [kV] In [A] e [mm] Adapter 1VCF kA (*)

2G WDLSJ 3.6 50 292 3B 309401R0301 502G WDLSJ 3.6 63 292 3B 3094013R002 502G WDLSJ 3.6 80 292 3B 3094013R003 502G WDLSJ 3.6 100 292 3B 3094013R004 502G WDLSJ 3.6 125 292 3B 3094013R005 502G WFLSJ 3.6 160 292 3B 3094013R006 502G WFLSJ 3.6 200 292 3B 3094013R007 502G WKLSJ 3.6 250 292 3B 3094013R008 502G WKLSJ 3.6 315 292 3B 3094013R009 502G WKLSJ 3.6 400 (1) 292 3B 3094013R010 502G WFMSJ 7.2 25 - - 3094013R011 402G WFMSJ 7.2 31.5 - - 3094013R012 402G WFMSJ 7.2 40 - - 3094013R013 402G WFMSJ 7.2 50 - - 3094013R014 402G WFMSJ 7.2 63 - - 3094013R015 402G WFMSJ 7.2 80 - - 3094013R016 402G WFMSJ 7.2 100 - - 3094013R017 402G WFMSJ 7.2 125 - - 3094013R018 402G WFMSJ 7.2 160 - - 3094013R019 402G WKMSJ 7.2 200 - - 3094013R020 402G WKMSJ 7.2 224 - - 3094013R021 402G WKMSJ 7.2 250 - - 3094013R022 402G WKMSJ 7.2 315 - - 3094013R023 402G WKMSJ 7.2 355 (1) - - 3094013R024 40

(*) Fuse breaking capacity.(1) For capacitor bank

application only.

Bussman type BS Standard fuses for transformer protection




2H BDGHO 7.2 6.3 4 x 10 x 410 3E 3094014R051 40

2H BDGHO 7.2 10 4 x 10 x 410 3E 3094014R052 402H BDGHO 7.2 16 4 x 10 x 410 3E 3094014R053 402H BDGHO 7.2 20 4 x 10 x 410 3E 3094014R054 402H BDGHO 7.2 25 4 x 10 x 410 3E 3094014R055 402H BDGHO 7.2 31.5 4 x 10 x 410 3E 3094014R056 402H BDGHO 7.2 40 4 x 10 x 410 3E 3094014R057 402H BDGHO 7.2 50 4 x 10 x 410 3E 3094014R058 402H BDGHO 7.2 63 4 x 10 x 410 3E 3094014R059 402H BDGHO 7.2 80 4 x 10 x 410 3E 3094014R060 402H BFGHO 7.2 90 4 x 10 x 410 3E 3094014R061 402H BFGHO 7.2 100 4 x 10 x 410 3E 3094014R062 402H BFGHO 7.2 125 4 x 10 x 410 3E 3094014R063 402H BFGHO 7.2 140 4 x 10 x 410 3E 3094014R064 40

2H BFGHO 7.2 160 4 x 10 x 410 3E 3094014R065 40


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2I BDGHO 12 6.3 4 x 10 x 410 3E 309401R0466 402I BDGHO 12 10 4 x 10 x 410 3E 309401R0467 402I BDGHO 12 16 4 x 10 x 410 3E 309401R0468 402I BDGHO 12 20 4 x 10 x 410 3E 309401R0469 402I BDGHO 12 22.4 4 x 10 x 410 3E 309401R0470 402I BDGHO 12 25 4 x 10 x 410 3E 309401R0471 402I BDGHO 12 31.5 4 x 10 x 410 3E 309401R0472 402I BDGHO 12 35.5 4 x 10 x 410 3E 309401R0473 402I BDGHO 12 40 4 x 10 x 410 3E 309401R0474 402I BDGHO 12 45 4 x 10 x 410 3E 309401R0475 402I BDGHO 12 50 4 x 10 x 410 3E 309401R0476 402I BFGHO 12 56 4 x 10 x 410 3E 309401R0477 402I BFGHO 12 63 4 x 10 x 410 3E 309401R0478 402I BFGHO 12 71 4 x 10 x 410 3E 309401R0479 402I BFGHO 12 80 4 x 10 x 410 3E 309401R0480 402I BFGHO 12 90 4 x 10 x 410 3E 309401R0481 402I BFGHO 12 100 4 x 10 x 410 3E 309401R0482 40

Bussman type DIN Standard fuses for transformer protection


Kit Fuse Un [kV] In [A] e [mm] Adapter 1VCP kA (*)

2K SDLSJ 7.2 6.3 292 3B 309401R0350 502K SDLSJ 7.2 10 292 3B 309401R0351 502K SDLSJ 7.2 16 292 3B 309401R0352 502K SDLSJ 7.2 20 292 3B 309401R0353 502K SDLSJ 7.2 25 292 3B 309401R0354 502K SDLSJ 7.2 31.5 292 3B 309401R0355 502K SDLSJ 7.2 40 292 3B 309401R0356 502K SDLSJ 7.2 50 292 3B 309401R0357 502K SDLSJ 7.2 63 292 3B 309401R0358 502K SFLSJ 7.2 80 292 3B 309401R0359 402K SFLSJ 7.2 100 292 3B 309401R0360 40

2K SFLSJ 7.2 125 292 3B 309401R0361 402K SFLSJ 7.2 160 292 3B 309401R0362 402K SDLSJ 12 6.3 292 3B 309401R0363 502K SDLSJ 12 10 292 3B 309401R0364 502K SDLSJ 12 16 292 3B 309401R0365 502K SDLSJ 12 20 292 3B 309401R0366 502K SDLSJ 12 25 292 3B 309401R0367 502K SDLSJ 12 31.5 292 3B 309401R0368 502K SDLSJ 12 40 292 3B 309401R0369 502K SDLSJ 12 50 292 3B 309401R0370 502K SDLSJ 12 63 292 3B 309401R0371 502K SFLSJ 12 80 292 3B 309401R0372 502K SFLSJ 12 100 292 3B 309401R0373 50

2K SKLSJ 12 125 292 3B 309401R0374 50




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3

4

Adapter for fuse application

The kit includes all the accessories required toadapt and mount three fuses (in compliance withDIN Standards with dimension “e” less than 442mm; in compliance with BS Standards withdimension L less than 553 mm). The kit can beinstalled directly onto the fuse-holder supports.The fuses must have the dimensions and striker ofaverage type according to DIN 43625 and BS2692 (1975) Standards. The electrical characteris-tics must comply with IEC 282-1 (1974) Standards.For fuse selection, see “Service conditionsdepending on the load” - chapter 5.

The adaptation kits are available in the followingtypes:3A For fuses complying with DIN Standards

with dimension e = 192 mm;3B For fuses complying with DIN Standards

with dimension e = 292 mm;3C For fuses complying with BS Standards

(2 x 8 x L = 235 mm);3D For fuses complying with BS Standards

(4 x 10 x L = 305 mm);3E For fuses complying with BS Standards

(4 x 10 x L = 410 mm).3F For fuses complying with BS Standards

with dimension L = 454 mm


Kit Standards e [mm] L [mm] 1VCF

3A DIN 192 - 309402R00013B DIN 292 - 309402R00023C BS - 2 x 8 x 235 309402R0003

3D BS - 4 x 10 x 305 309402R00043E BS - 4 x 10 x 410 309402R00063F BS - 4 x 10 x 454 309402R0005

Connections alternative to fuses

The kit includes three flat copper bars and fixingscrews to be installed when the fuses are notrequired. The kit can be installed directly onto the

fuse-holder supports.

V7; V12; V7/C; V12/C; V7/Z; V12/Z; V7/P;V12/P; V7/W; V12/W; V7/UN; V12/UN

Kit 1VCF4A 309400R0211


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5

6


Operation counter

V7; V12

Kit Power supply voltage 1VCF

5A (24 ... 60 V –) 309400R0311

5B (100 ... 250 V – / ~) 309400R0312

V7/C; V12/C; V7/Z; V12/Z; V7/P; V12/P; V7/W; V12/W


5A (24 ... 60 V –) 309400R0321

5B (100 ... 250 V – / ~) 309400R0322

V7/UN; V12/UN


5A (24 ... 60 V –) 309400R0331

5B (100 ... 250 V – / ~) 309400R0342

V7; V12; V7/C; V12/C; V7/Z; V12/Z; V7/P;V12/P; V7/W; V12/W; V7/UN; V12/UN

Kit Un 1VCF

6 24 V – 309401R09026 30 V – 309401R09036 48 V – 309401R09046 60 V – 309401R09056 110 V – 309401R09096 120 V – 309401R09116 125 V – 309401R0912

6 127 V – 309401R09136 130 V – 309401R09146 220 V – 309401R09186 250 V – 309401R09226 110 V ~ (50 Hz) 309401R09396 120 V ~ (50 Hz) 309401R09406 220 V ~ (50 Hz) 309401R09486 230 V ~ (50 Hz) 309401R09506 240 V ~ (50 Hz) 309401R09516 110 V ~ (60 Hz) 309401R09696 120 V ~ (60 Hz) 309401R09716 220 V ~ (60 Hz) 309401R09786 230 V ~ (60 Hz) 309401R09806 240 V ~ (60 Hz) 309401R0981

This is a mechanical device which,on closure of the contactor, latchesthe moving equipment and keeps thecontactor closed with the operatingmechanism coils de-energised.The mechanical latching deviceincludes the shunt opening releasefor instantaneous service, theopening pushbutton and the releasedevice for fuse intervention.

Selection of the mechanical latchingdevice is made according to thevoltage of the shunt opening releaseand the power supply voltageof the contactor as listed below.The current absorbed by the shuntopening release has a maximumvalue of 7A for 70 ms.

Mechanical latching

This is an impulse counting device which counts the contactor closing cycles.


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7

8

Connected/isolated position contacts on withdrawable truck

These signal the position of the contactor truckinside the CBE enclosure. The kit includes a set of10 auxiliary contacts. This accessory must alwaysbe requested for contactors to be used in ZS1and UniGear ZS1 type switchgear.7A Standard diagram7B Calor Emag diagram.

Electrical characteristics of the contactUn Icu cos ϕ T

220 V~ 10 A 0.4 –220 V~ 5 A 0.4 –220 V– 1 A – 10 ms

Locking magnet in the withdrawable truck

This only allows the withdrawable contactor to beracked in or out of the enclosure when the electro-magnet is energised and the contactor open.This accessory is compulsory for V/W UniSafe andV/P (UniGear type ZS1) contactors because it isan integral part of the anti-racking-in lock.

V7/C; V12/C; V7/Z; V12/Z; V7/P;V12/P; V7/W; V12/W

Kit 1VCP

7A 309400R02417B 309400R0242

V7/C; V12/C; V7/Z; V12/Z; V7/P;V12/P; V7/W; V12/W

Kit Un F 1VCP

8 24 V – - 309402R09028 30 V – - 309402R09038 48 V – - 309402R09048 60 V – - 309402R09058 110 V – - 309402R09098 125 V – - 309402R09128 220 V – - 309402R09188 24 V ~ 50 Hz 359618R09328 48 V ~ 50 Hz 359618R09348 60 V ~ 50 Hz 359618R09358 110 V ~ 50 Hz 359618R09398 120 V ~ 50 Hz 359618R09418 127 V ~ 50 Hz 359618R09438 220 V ~ 50 Hz 359618R09488 230 V ~ 50 Hz 359618R09508 240 V ~ 50 Hz 359618R09518 110 V ~ 60 Hz 359618R09698 120 V ~ 60 Hz 359618R09718 127 V ~ 60 Hz 359618R09738 220 V ~ 60 Hz 359618R09788 230 V ~ 60 Hz 359618R09808 240 V ~ 60 Hz 359618R0981


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10

9


Voltage transformer on board

Apart from the contactor power supply, it is possi-ble to supply other components in the compart-ment (signalling lamps, auxiliary relays andprotection relays up to a maximum power of 50VA.) Its use as an instrument transformer for anundervoltage protection relay and to supplyseveral contactors (e.g.: star-delta starting) is not

foreseen.

Kit Type Un [V] Thermal power 1VCF

V7; V12 (with fuse-holder - pole centre distance 150 mm)

10A TV - 3,6 3300/110 250 VA 309400R035110A TV - 7,2 6000/110 250 VA 309400R035210A TV - 12 10000/110 250 VA 309400R035310A TV - 3,6 3300/220 250 VA 309400R035410A TV - 7,2 6000/220 250 VA 309400R035510A TV - 12 10000/220 250 VA 309400R0356

A single-phase voltage transformer complete withrelative protection fuses incorporated in the resinof the transformer itself can be mounted on board.The voltage transformer must be used to supplythe operating mechanism coils of the contactor.Only combination with type 2 feeder is foreseen.

Application of mechanical interlock with the enclosure door

This only allows the door of the switchgear to beopened when the contactor is in the isolatedposition. This accessory can only be installed if thecontactor is used in UniVer C type switchgear orCBE enclosures.

V7/C; V12/C

Kit 1VCF

9 359600R0381


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11

12

Rack-in lock

Isolation lock for PowerCube modules. It preventsisolation of the apparatus if the unit door is open.This lock only operates if the PB1 module is alsofitted with the corresponding lock.

V7/W; V12/W; V7/P; V12/P

Kit 1VCF

11 349700R0047

Insulating barrier

The insulating barrier is mounted in the UniGearZS1 type switchgear to guarantee the impulsewithstand voltage up to 75 kV (BIL) for 12 kVcontactors.

V12/P

Kit 1VCF

12 309400R0531

Kit Type Un [V] Thermal power 1VCF

V7/C; V12/C; V7/Z; V12/Z; V7/P; V12/P; V7/W; V12/W

10B TV - 3.6 3300/110 250 VA 309400R035710B TV - 7,2 6600/110 250 VA 309400R035810B TV - 12 10000/110 250 VA 309400R035910B TV - 3.6 3300/220 250 VA 309400R036010B TV - 7.2 6600/220 250 VA 309400R036110B TV - 12 10000/220 250 VA 309400R0362

V7/UN; V12/UN

10C TV - 3.6 3300/110 250 VA 309400R036310C TV - 7.2 6600/110 250 VA 309400R036410C TV - 12 10000/110 250 VA 309400R036510C TV - 3.6 3300/220 250 VA 309400R036610C TV - 7.2 6600/220 250 VA 309400R036710C TV - 12 10000/220 250 VA 309400R0368


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3



Enclosure ordering codes 33




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32



CBE 11

12

12

28

75

50-60

400 (*)

31.5

600

943

752

120

3X

31

32

IEC publ. 56

CEI 17-1 (file 1375)

CENELEC EN 50187

U [kV]

Ui [kV]

U (1 min) [kV]

Uw [kV]

F [Hz]

In [A]

Icw [kA]

H [mm]

L [mm]

D [mm]

[kg]

IEC 721-2-1

EN 50081.../50082...

IP

Page

Page

EnclosureStandards

Rated voltage

Rated insulation voltage

Withstand voltage at 50 Hz

Impulse withstand voltage

Rated frequency

Rated current (40 °C)

Rated short-time withstand current

Overall dimensions

(excluding monoblocs)

Weight

Tropicalisation

Electromagnetic compatibility

Degree of protection with door closed

Enclosure codes

Accessories

(*) Contactor rated current.The minimum rated currentof the CBE11 enclosure is630 A.


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3

CBE 11 - CBE1

Enclosure ordering codes

Contactor Enclosure without earthing switch

U [kV] In [A] In [A] UXAB (1)

V/C 7 - 12 400 CBE 1 630 A 494121111CBE 11 630 A 346111111

Contactor Enclosure with earthing switch

U [kV] In [A] In [A] UXAB (1)

V/C 7 - 12 400 CBE 1/ST 630 A 494122111CBE 11/ST 630 A 346112111

The basic coded versions of CBE enclosures arealways provided with degree of protection IP3Xwith the door closed, IP2X with the door open andare made up as follows:– structure made of unpainted galvanised sheet– door painted RAL 7035. On request, it is

possible to supply the door dismantled andprotected against corrosion (painting to be doneby the customer) with a completion kit (handle,inspection window, hinges, guide for theracking-out lever)

– handle for door without lock.– monoblocs prepared for connections

(1) The enclosure is suppliedwith the door mounted andpainted Ral 7035 colour.

Standard fittings

– automatic MV contact metallic segregationshutters with “fail safe” device which preventsmanual operation of the shutters

– sliding earthing contact (not available on CBE1)– connector– anti-racking-in lock– nameplate in language of choice.

N.B. The CBE enclosures are available in two versions:without earthing switch or with earthing switch. Theearthing switch is not an accessory and cannot beapplied at a later date.


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2

3

4

5

6

7

8

9

10

11

12

13

14

15

1


Combinations of CBE enclosure accessoriesAll the accessories indicated in the diagram beloware compatible with each other.Accessories no. 1, 2, 3, 4 and 5 (for earthingswitch) can only be mounted in enclosures fittedwith an earthing switch and are also compatiblewith accessories no. 6 …14.



Customer ABB

Accessories for enclosure with earthing switch

Auxiliary contactsopen/closed

Key lock

Electromechanicallock

Operating lever

Position contacts

Anti-condensationheater

Voltage indicator

Mechanical doorinterlock

Lifting truck

Transport plate

Electric door lock

Locking magnet inthe contactor truck

Anti racking-inkey lock

Handle with lock

Loose galvanised

door


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3

1

2

3

When incorporated in a suitable electric circuit,these contacts can be used to indicate the state ofthe earthing switch. They can be set up as make orbreak contacts by the customer by means of asimple operation.1A Five signalling contacts.1B Ten signalling contacts.


220 V~ 10 A 0.4 –220 V~ 5 A 0.4 –220 V– 1 A – 10 ms

Auxiliary open/closed contacts for earthing switch

This is a lock which prevents earthing switchoperation, available in three versions.2A Key lock in open position. Can be activated with the earthing switch open and prevents

it from being closed. The key can beremoved in this situation.

2B Key lock in closed position. Can be activated with the earthing switch closed, preventing it from being opened. The key can be removed

in this situation.2C Key lock in open and closed position. This

consists of both locks 2A and 2B together. The keys can be removed as indicated in 2A and 2B.

Key lock for earthing switch

CBE 11 - CBE 1

Kit UXAB

1A 4994000611B 499400062

CBE 11 - CBE 1

Kit UXAB

2A 4994082722B 4994082732C 499408271

CBE 11 - CBE 1

Kit Un F UXAB

3 24 V – - 4994119023 48 V – - 4994119043 110-125 V – - 4994119093 220 V – - 4994119183 110 V~ 50 Hz 499411939

3 220 V~ 50 Hz 499411948

This only allows operation of the earthing switchwhen voltage is present by means of pressing thepushbutton of the relative power supply circuit (tobe provided by the customer). The lock is notsuitable for continuous operation (maximumpower supply duration: 1 minute).

Electromechanical lock on de-energisation for earthing switch


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5 - 6

7

8


Allows the earthing switch to be operated directlyfrom the front of the enclosure.

Earthing switch operating lever

Incorporated in a suitable electric circuit, theseindicate the contactor position in the enclosure.5A Set of 12 contacts indicating contactor

racked-out (6 make contacts + 6 break contacts).

5B Set of 20 contacts indicating contactor racked-out (10 make contacts + 10 break

contacts).6A Set of 12 contacts indicating contactor

racked-in (6 make contacts + 6 break con-tacts).

6B Set of 20 contacts indicating contactor racked-in (10 make contacts + 10 break

contacts).

Auxiliary position contacts

Electrical characteristics of the contact

Un Icu cos ϕ T

220 V~ 10 A 0.4 –

220 V~ 5 A 0.4 –220 V– 1 A – 10 ms

This consists of an electric heating element. It hasthe aim of preventing formation of condensationfrom the watery steam which, under certainconditions, could be deposited on the internalsheets of the enclosure.

Anti-condensation heater

This consists of a luminous capacitive device.It has the aim of indicating the presence of voltagein the main circuit phases.It is normally supplied by voltage dividers whichcan be supplied on request.

Voltage indicator

CBE 11 - CBE 1

Kit UXAB

4 499400071

CBE 11 - CBE 1

Kit UXAB

5A 4994081715B 4994081726A 4994081736B 499408174

CBE 11 - CBE 1

Kit Un UXAB

7 110 V –/~ 4994089397 220 V –/~ 4994089487 380 V –/~ 499408953

CBE 11 - CBE 1

Kit UXAB

8 499400018


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9

10

11

12 - 13

12

13

This is a locking device which only allows theenclosure door (IP30) to be opened when thecontactor is isolated.

Mechanical door interlock

This is a contact operated by the compartmentdoor handle (with or without lock). It is used toprevent contactor traverse in the enclosurewhen the door is open.

N.B. In this case the contactor must be fitted with thetruck locking magnet (YL2 - See accessories forcontactors).

Electrical door interlock (IP30)

This is a locking device which, when activated,prevents the contactor being racked into theenclosure. The key can only be removed whenthe lock is activated.11A Enclosure without earthing switch11B Enclosure with earthing switch.

Anti-racking-in key lock

Lifting truck and transport plate

This is a truck which facilitates the contactorlifting operations.It must be coupled with the plate (14).

CBE 11 - CBE 1

Kit UXAB

12 49940018213 499400081

CBE 11 - CBE 1

Kit UXAB

9 499400018

CBE 11 - CBE 1

Kit UXAB

10 499408196

CBE 11 - CBE 1

Kit UXAB

11A 49940820711B 499408206


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3

14

15


This accessory replaces the handle without locknormally supplied.

Handle with lock

The unpainted door is supplied dismantled andcomplete with a kit of accessories. Assemblyand painting are to be done by the customer.This accessory replaces the painted and mounteddoor normally supplied.

Unpainted door (galvanized)

CBE 11 - CBE 1

Kit UXAB

14 499408042

CBE 11 - CBE 1

Kit UXAB

15 499408111


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4







42/92

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UniMotor

12

12

28

75 (1)

50-60

400 (2)

50

670

500

880

120

3X

39

40

IEC 62271-100

CEI 17-1 (file 1375)/17-6 (file 2056)

CENELEC HD 348 56 / 187 55

U [kV]

Ui [kV]

U (1 min) [kV]

Uw [kV]F [Hz]

In [A]

Icw [kA]

H [mm]

L [mm]

D [mm]

[kg]

IEC 721-2-1

EN 50081.../50082...

IP

Page

Page

Enclosure

Standards

Rated voltage



Impulse withstand voltageRated frequency



Overall dimensions


Weight (with CT)

Tropicalisation



Enclosure codes

Accessories

Standard fittings

The basic coded versions of UniMotor enclosuresare always provided with IP3X degree of protec-tion with the door closed, and IP2X with the dooropen and are made up as follows:– structure made of unpainted galvanised sheet– insulating monoblocs with input terminals– sliding earthing contact– connector for auxiliary circuits– isolation unit for operation with door closed with

handle without key

(1) As far as the upper metal shutter closed with the contactor truck racked out.(2) Without current transformers, without fuses and with degree of protection IP3X. For other conditions, please contact us.

– translation guides and metallic shutter for theupper contacts

– manual opening (only for contactor withmechanical latching).

– door painted RAL 7035. On request, it ispossible to supply the door dismantled andprotected against corrosion (painting to be doneby the customer) with a kit of accessories(hinges, inspection window, handle, etc.).


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+

UniMotor (1)


Contactor with electrical latching Enclosure without current transformers

U [kV] In [A] Mounted door - painted RAL 7035 Mounted door - Galvanized

UXAB UXAB

V7/UN 7 400 303141211 303141411

V12/UN 12 400 303142211 303142411

Contactor with electrical latching Enclosure preset for current transformers (1)


UXAB UXAB

V7/UN 7 400 303141212 303141412

V12/UN 12 400 303142212 303142412

Contactor with mechanical latching Enclosure without current transformers


UXAB UXAB

V7/UN 7 400 303141221 303141421

V12/UN 12 400 303142221 303142421

(1) Complete with currenttransformers (seeaccessories on page 42).

(2) When ordering, it isnecessary to specify thelanguage of the operatinginstruction plate.

Contactor with mechanical latching Enclosure preset for current transformers (1)


UXAB UXAB

V7/UN 7 400 303141222 303141422

V12/UN 12 400 303142222 303142422

Operating instruction plate (2)

Language UXAB

Italian 309300101

English 309300102

German 309300103

French 309300104


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1

2

3

4

5

6

7

8



Possible combinations of enclosure accessoriesAll the accessories indicated in thediagram below are compatible with each other.

Currenttransformers

Assembly template

Cable connections

Earthing switch

Key lock forearthing switch

Key lock onracking-outoperation

Fuse interventionmicroswitches

Position contacts

Lifting truck

Application of accessoriesCustomer ABB


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1 Current transformers

Three-phase currenttransformers embed-ded in a resinmonobloc are availablefor the UniMotorenclosure.The monobloc isalways three-pole andcomplete with terminalsfor cable connection.

The monobloc can house the primary and second-ary circuits relative to two or three phases.Selection of the monobloc with the current trans-formers depends on the primary current, thenumber of phases to be controlled and thenumber of secondary windings.Should the current transformers be mounted bythe customer, the mounting template (see acces-sory 2) must be requested and the enclosuresealed for current transformer. The current trans-formers are available in the following versions:1A Current transformer with 3 active phases and

one core per phase;

1B Current transformer with 3 active phases andtwo cores per phase;1C Current transformer with 2 active phases and

one core per phase;1D Current transformer with 2 active phases and

two cores per phase.

Characteristics of thethree-phase current transformersActive phases 3 maxCores per phase 2 maxFirst core performance (measurement) 15VA/1Second core performance (protection) 10VA/5P10Rated primary current (Ipn) 30 - 300 A

Rated current 1A for CT with 1 coreRated secondary current (Isn) 5A for CT with 2 coresRated normal short-circuit current (Iter) 80 x IpnRated dynamic short-circuit current (Idin) 350 x IpnMaximum permanent heating current = IpnInsulation voltage 12 kVRated frequency 50/60 HzAmbient temperature 55 °CFree of partial discharges according to ABB T09260 specif.N.B. The table shows the most commonly used transformers.However, on request, transformers with different characteristicsare available (please consult us).

F Rated frequency of the CT.Ipn Rated primary current of the CT.Isn Rated secondary current of the CT.

UniMotor

Active Coresphases per phase F Ipn Isn

Kit [No] [No] [Hz] [A] [A] UXAB1A 3 1 50 30 1 3093121011A 3 1 50 50 1 3093121021A 3 1 50 75 1 3093121031A 3 1 50 100 1 3093121041A 3 1 50 150 1 3093121051A 3 1 50 200 1 3093121061A 3 1 50 300 1 3093121071A 3 1 60 30 1 309312301

1A 3 1 60 50 1 3093123021A 3 1 60 75 1 3093123031A 3 1 60 100 1 3093123041A 3 1 60 150 1 3093123051A 3 1 60 200 1 3093123061A 3 1 60 300 1 3093123071B 3 2 50 30 5 3093122011B 3 2 50 50 5 3093122021B 3 2 50 75 5 3093122031B 3 2 50 100 5 3093122041B 3 2 50 150 5 3093122051B 3 2 50 200 5 3093122061B 3 2 50 300 5 3093122071B 3 2 60 30 5 3093124011B 3 2 60 50 5 3093124021B 3 2 60 75 5 3093124031B 3 2 60 100 5 3093124041B 3 2 60 150 5 3093124051B 3 2 60 200 5 3093124061B 3 2 60 300 5 3093124071C 2 1 50 30 1 3093111011C 2 1 50 50 1 3093111021C 2 1 50 75 1 3093111031C 2 1 50 100 1 3093111041C 2 1 50 150 1 3093111051C 2 1 50 200 1 3093111061C 2 1 50 300 1 3093111071C 2 1 60 30 1 3093113011C 2 1 60 50 1 3093113021C 2 1 60 75 1 3093113031C 2 1 60 100 1 3093113041C 2 1 60 150 1 3093113051C 2 1 60 200 1 3093113061C 2 1 60 300 1 3093113071D 2 2 50 30 5 3093112011D 2 2 50 50 5 3093112021D 2 2 50 75 5 3093112031D 2 2 50 100 5 3093112041D 2 2 50 150 5 3093112051D 2 2 50 200 5 3093112061D 2 2 50 300 5 3093112071D 2 2 60 30 5 3093114011D 2 2 60 50 5 3093114021D 2 2 60 75 5 3093114031D 2 2 60 100 5 3093114041D 2 2 60 150 5 3093114051D 2 2 60 200 5 3093114061D 2 2 60 300 5 309311407


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The assembly template allows the monobloccontacts/current transformers to be installed (bythe customer) in the UniMotor enclosure.The template is identical for all types of enclosureand/or monobloc.

Assembly template for current transformers

The kit consists of three insulators and threesuitably shaped lengths of copper busbar.Application of this accessory allows the connec-tion terminals to be taken to the side of the enclo-sure to facilitate connection of the medium voltagecables.

Cable connections

This is a mechanical device which allows the MVline connected to the output terminals of theenclosure to be earthed. Earthing switch operationtakes place automatically:– earthing switch closure takes place on door opening;– opening earthing switch takes place during racking-in of the contactor truck.

Earthing switch without key lock

This is a mechanical device which allows theearthing switch operation to be locked.The lock is available in the following versions.5A Key free with earthing switch closed.5B Key free with earthing switch open.


UniMotor

Kit UXAB

2 309300161

UniMotor

Kit UXAB

3 309300321

UniMotor

Kit UXAB

4 309300141

UniMotor

Kit UXAB

5A 3093005025B 309300501


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9


This is a truck which facilitates the contactor liftingoperations for racking it into the enclosure.

Lifting truck

UniMotor

Kit UXAB

9 309300331


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PowerCube PB1

12

12

28

75

50-60

400 (*)

31,5

1690

600

1016

180

4X

49

50

IEC 62271-100

CEI 17-1; CEI 17-6

IEC 60298

U [kV]

Ui [kV]

U (1 min) [kV]

Uw [kV]

F [Hz]

In [A]

Icw [kA]

H [mm]

L [mm]

D [mm]

[kg]

IEC 721-2-1

EN 50081.../50082...

IP

Page

Page

Enclosure

Standards

Rated voltage



Impulse withstand voltage

Rated frequency



Overall dimensions


Weight

Tropicalisation



Enclosure codes

Accessories

(*) Rated current of thecontactor. The minimumrated current of thePowerCube module is 630 A.


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PowerCube PB1


Contactor Enclosure without earthing switch

U [kV] In [A] PowerCube In [A] 1VCF (1)

V/W 7 - 12 400 PB1 without voltage indicator lamps 400 A 595101R1011

V/W 7 - 12 400 PB1 with voltage indicator lamps 400 A 595101R1012

Contactor Enclosure with earthing switch

U [kV] In [A] PowerCube In [A] 1VCF (1)

V/W 7 - 12 400 PB1 without voltage indicator lamps 400 A 595101R1021with earthing switch ST20KA-3S - 31.5 kAx1s

V/W 7 - 12 400 PB1 with voltage indicator lamps 400 A 595101R1022with earthing switch ST20KA-3S - 31.5 kAx1s

V/W 7 - 12 400 PB1 without voltage indicator lamps 400 A 595101R1031with ST earthing switch ST - 31.5 kAx3s

V/W 7 - 12 400 PB1 with voltage indicator lamps 400 A 595101R1032

with ST earthing switch ST - 31.5 kAx3s

The basic coded versions of PowerCube modulesare always provided with IP4X degree of protec-tion with the door closed, and IP2X with the dooropen and are made up as follows:– structure made of unpainted galvanised sheet– door painted RAL 7035– handle for door without lock– monoblocs prepared for connections– automatic metal MV contact segregation shutters

(1) The enclosure is suppliedwith the door mounted andpainted RAL 7035 colour.

Standard fittings

– sliding earthing contact– connector– anti-racking-in lock– nameplate with characteristic in language of choice.

N.B. The PowerCube modules are available in differentversions: without earthing switch or with earthing switch,with or without voltage indicator lamp. The earthingswitch and voltage indicator lamp are not accessories

and cannot be applied at a later date.


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6

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8

9

10

11

12

13

1


Combinations of PowerCube module accessoriesAll the accessories indicated in the diagram beloware compatible with each other. Accessories no. 1,2, 3, and 4 (for earthing switch) can only bemounted in enclosures fitted with an earthingswitch and are also compatible with accessoriesno. 5 …15.



Customer ABB

Accessories for enclosure with earthing switch

Auxiliary contactsopen/closed

Key lock

Electromechanicallock

Operating lever

Position contacts

Anti-condensationheater

Electro-mechanicaldoor interlock

Lifting truck

Lifting eyebolts

Shutter Fail Safe

Anti racking-inkey lock

Safety shutterpadlock

Lock on contactorraking in


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1

2

3

When incorporated in a suitable electric circuit,these contacts can be used to indicate the state ofthe earthing switch.They can be set up as make or break contacts bythe customer by means of a simple operation.1A Five signalling contacts.1B Ten signalling contacts.


220 V~ 10 A 0.4 –220 V~ 5 A 0.4 –220 V– 1 A – 10 ms

Auxiliary open/closed contacts for earthing switch

This is a lock which prevents earthing switchoperation, available in three versions.2A Key lock in open position. Can be activated

with the earthing switch open and prevents it

from being closed. The key can be removedin this situation.

2B Key lock in closed position. Can be activatedwith the earthing switch closed, preventing itfrom being opened. The key can be removedin this situation.

2C Key lock in open and closed position. Thisconsists of both locks 2A and 2B together.The keys can be removed as indicated in 2Aand 2B.


PowerCube PB1

Kit 1VCF

1A 599505R00011B 599505R0002

PowerCube PB1

Kit 1VCF

2A 599504R00612B 599504R00622C 599504R0063

PowerCube PB1

Kit Un F 1VCF

3 24 V – - 599500R09023 48 V – - 599500R09043 60 V – - 599500R09053 110 V – - 599500R09093 220 V – - 599500R09183 110 V~ 50 Hz 599500R0939

3 220 V~ 50 Hz 599500R0948

This only allows operation of the earthing switchwhen voltage is present by means of pressing thepushbutton of the relative power supply circuit (tobe provided by the customer).The lock is not suitable for continuous operation(maximum power supply duration: 1 minute).

Electromechanical lock on de-energisation for earthing switch


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4


Allows the earthing switch to be operated directlyfrom the front of the enclosure.

Earthing switch operating lever

Incorporated in a suitable electric circuit, theseindicate the contactor position in the enclosure.5 Set of 12 contacts signalling contactor

isolated (6 make contacts + 6 break contacts)and set of 12 contacts signalling contactorracked-in (6 make contacts + 6 break con-tacts).

Auxiliary position contacts

Electrical characteristics of the contact

Un Icu cos ϕ T

220 V~ 10 A 0.4 –220 V~ 5 A 0.4 –

220 V– 1 A – 10 ms

This consists of an electric heating element. It hasthe aim of preventing formation of condensationfrom the watery steam which, under certainconditions, could be deposited on the internalsheets of the enclosure.

Anti-condensation heater

PowerCube PB1

Kit 1VCF

4 599505R0351

PowerCube PB1

Kit 1VCF

5A 599505R0091

PowerCube PB1

Kit Un 1VCF

6 110 V 50 Hz 599501R09396 220 V 50 Hz 599501R0948


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7

8

This is a locking device which only allows theenclosure door (IP4X) to be opened when thecontactor is isolated.

Mechanical door interlock

Transport truck and transport plate

This is a truck which facilitates the contactortransport operations. PowerCube PB1

Kit 1VCF

8 599505R0371

PowerCube PB1

Kit F 1VCF

7 24 V – - 500503R09027 48 V – - 500503R09047 60 V – - 500503R09057 110 V – - 500503R09097 220 V – - 500503R09187 110 V~ 50 Hz 500503R09397 220 V~ 50 Hz 500503R0948

Lifting eyebolts

Eyebolts to be applied to the unit for lifting bymeans of a bridge crane. PowerCube PB1

Kit 1VCF

9 599505R0361


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10

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The lock, when activated, prevents opening themetal shutters and therefore prevents access tothe medium voltage contacts.13A Lock for both shutters13B Lock for the top shutter13C Lock for the bottom shutter.

Padlock on the safety shutters

PowerCube PB1

Kit 1VCF

12A 599505R032112B 599505R032212C 599505R0323

Mechanical lock which prevents manual shutteropening when the apparatus is racked out.

Mechanical shutter lock with apparatus racked out (Fail Safe)

This is a locking device which, when activated,prevents the contactor being racked into theenclosure.The key can only be removed when the lock isactivated.12A Enclosure without earthing switch12B Enclosure with earthing switch.

Anti-racking-in key lock

Prevents circuit-breaker racking in with the dooropen (the corresponding lock on the circuit-breaker/ contactor must be provided).

Lock on contactor racking in

PowerCube PB1

Kit 1VCF

10 599505R0111

PowerCube PB1

Kit 1VCF

11A 599504R004111B 599504R0042

PowerCube PB1

Kit 1VCF

13 Ask ABB


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Electromagnetic compatibility 56

Resistance to vibrations 56

Tropicalisation 56

Installation of fixed contactor and fixed contactor with fuses 56

Altitude 56

Electronic feeder power consumption 58

Environmental protection programme 58

V-Contact - VRC interchangeability 58

Service conditions depending on the load 59

Derating in switchgear according to ambient temperature 69



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a b


AltitudeIt is well-known that the insulating properties of airdecrease as the altitude increases. This phenom-enon must always be taken into account duringthe design stage of insulating parts of equipmentwhich is to be installed over 1000 m above sealevel. In this case a correction coefficient must beapplied, which can be taken from the graph drawnup according to IEC and CEI Standard indica-tions. The following example gives a clear inter-pretation of the indications given above.

Electromagnetic compatibilityThe V-Contact vacuum contactors ensure opera-tion without unwarranted interventions when thereare interferences caused by electronic apparatus,by atmospheric disturbances or by discharges ofelectrical type.They also do not cause any interference withelectronic apparatus in the vicinity of the installa-tion.The above is in compliance with IEC 60694,60470, 61000-6-2, 61000-6-4 Standards, as well

as with EEC 89/336 European Directive regardingelectromagnetic compatibility (EMC), and thefeeders are CE marked to indicate their compli-ance.

Resistance to vibrationsV-Contact vacuum contactors are unaffected bymechanically or electromagnetically generatedvibrations.

Tropicalisation

V-Contact vacuum contactors are manufactured incompliance with the prescriptions regarding use inhot-humid-saline climates.All the most important metal parts are treatedìagainst corrosive factors corresponding to ambi-ent conditions C in compliance with the UNI 3564-65 Standards.Galvanization is carried out in compliance with theUNI ISO 2081 Standard, classification code Fe/Zn12, with thickness of 12x10 -6 m, protected by alayer of conversion mainly consisting of chromatesin compliance with the UNI ISO 4520 Standard.These characteristics mean that all the V-Contactseries apparatus and their accessories comply

with climate graph no. 8 of the IEC 721-2-1 andIEC 68- 2-2 (Test B: Dry Heat) / IEC 68-2-30 (TestBd: Damp Heat, cyclic) Standards.

Installation of fixed contactor and fixedcontactor with fusesThe performance of the fixed contactor remainsunaltered in the installation positions indicated:

a) normal position;

b) vertical with the moving contacts at the top.

N.B.: the fixed contactor with fuses or with VT can onlybe installed in position a) .


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Example• Installation altitude 2000 m• Use at rated voltage of 7 kV• Power frequency withstand voltage 20 kV rms• Impulse withstand voltage 50 kVp• Ka Factor = 1.13 (see graph).

These factors can be calculated from the IEC Standard with the following equation:

K a = e m (H .1 000)/8150

According to the above parameters, the apparatus will have to withstand the followingvalues (test values at zero altitude i.e. at sea level):– Power frequency withstand voltage equal to:

20 x 1.13 = 22,6 kVrms– Impulse withstand voltage equal to:

50 x 1.13 = 56,5 kVp.From the above, it can be deduced that for installations at an altitude of 2000 m above sealevel, with an operating voltage of 7 kV, apparatus with a rated voltage of 12 kV character-ized by power frequency withstand voltage of 28 kV rms and with 60/75 kVp impulsewithstand voltage must be provided.

H altitude in metres;m value considered for constant simplification in and

case and equivalent to 1 for power frequency,lightning withstand impulse and between phases.


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Electronic feeder power consumption

Feeder Rated Inrush current Start-up current Continuous aervicetype Voltage Peak value (*) r.m.s. Value (*) current (*)

[V] [A] [ms] [A] [ms] [A]

1 24 V d.c. 100 131 30 V d.c. 1 ms 170 0,51 48 V d.c. 110 131 60 V d.c. 190

2 110 V d.c. 8,5 6,5

2 125 V d.c. 1 ms 170 0,42 220 V d.c. 21 3,52 250 V d.c.

2 110 V a.c. 21 9,52 125 V a.c. 1 ms 170 0,52 220 V a.c. 37 5,52 250 V a.c.

(*) Maximum Values of time and currents

of the enclosures and ZS1 switchgear as indicatedbelow:• diagram 1VCD400042R0000 for interchange-

ability between the electric circuits of the V/C -V/Z contactors and VRC/ZC with electro-magnetical latching

• diagram 1VCD400043R0000 for interchange-ability between the electric circuits of the V/C -V/Z contactors and VRC/ZC with mechanicallatching.

Withdrawable V/UN contactors (UniMotor)To guarantee physical interchangeability betweenV-Contact V/UN and the corresponding versions ofthe VRC contactor, adaptation kits are provided forthe UniMotor enclosure:

• retrofitting kit for V7/UN contactor:1VCF 309400R0271• retrofitting kit for V12/UN contactor:

1VCF 309400R0272.

For electrical interchangeability, it is necessary tomake some modifications to the electrical dia-grams of the enclosures as indicated below:• diagram 1VCF400040R0000 for interchangeability

between the electric circuits of the V-Contact V/UNcontactors and VRC/UniMotor contactors withelectromagnetic latching

• diagram 1VCF400041R0000 for interchangeabilitybetween the electric circuits of the V-Contact V/UNcontactors and VRC/UniMotor contactors withmechanical latching.

Environmental protection programmeThe V-Contact contactors are constructed in

compliance with the ISO 14000 Standards (Guidelines for environmental management).The production processes are carried out incompliance with the Standards for environmentalprotection both in terms of reduction of energyconsumption and raw materials and of productionof waste. This thanks to the environmental man-agement certified system of the production facility.The minimal environmental impact during the lifecycle of the product (LCA - Life Cycle Assess-ment), is obtained by targeted selection of materi-als, processes and packing made during thedesign stage.Production techniques which prepare the products

for easy dismantling and easy separation of thecomponents are put into effect when manufactur-ing the contactors. This is to allow maximumrecycling at the end of the useful life cycle of theapparatus.

V-Contact - VRC interchangeability

Withdrawable V/C contactors (for CBE) andV/Z (for ZS1)Complete physical interchangeability betweenVRC/ZC and V-Contact V/C and V/Z is guaranteed.For electrical interchangeability, it is necessary to

make some modifications to the electrical diagrams


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Procedure for selecting the fuses formotor protectionThe choice of fuses suitable for motor protectionmust be carried out by checking the serviceconditions.The following data should be taken into consid-eration:– supply voltage– starting current– starting duration– number of start-ups/hour

– full motor load current– short-circuit current of the installation.Achievement of trip co-ordination with the otherprotection relays is also one of the selectioncriteria in order to ensure adequate protection ofthe contactor, the current transformers, the cables,the motor itself and any other equipment presentin the circuit which might be damaged because ofprolonged overloads or specific let-throughenergy (I 2t) above the withstand energy.Protection against short-circuit is carried out by thefuses, always selected with a higher rated currentthan the motor to prevent their intervention on startup. This does not allow their use as protection

against repeated overloads - a function notguaranteed by them anyway - especially withcurrent values included up to the end of the initialasymptotic stretch of the characteristic curve.

An inverse or definite time delay relay is thereforealways required for protection against overloads.This protection must be coordinated with theprotection carried out by the fuse so that the relayand fuse curves intersect at a point which allows:1) Motor protection against overcurrents due to

overloads, single-phase running, blocked rotorand repeated start-ups. Protection given byinverse and definite time indirect relays, whichact on the contactor.

2) Protection of the circuit against fault currentsbetween phases and to earth, of low value,given by inverse or definite time relays, whichmust only trip for short-circuit values which canbe interrupted by the contactor.

3) Circuit protection for fault currents above thecontactor breaking capacity up to the maxi-mum withstand fault current. Protection en-trusted to the fuse.

The VRC HD contactor (special version forswitching capacitor banks) can be replaced withthe standard contactors whose service parameters

are those indicated in the table on page 10.For different values, please contact us.

Service depending on the load

Motor control and protectionThe motors are usually supplied with low voltageup to a power of 630 kW. Above this power it ispreferable to supply them with medium voltage(from 3 to 12 kV) in order to reduce costs anddimensions of all the equipment comprising thecircuit.V-Contact can be used for voltages from 2.2 kV up

to 12 kV and for motors up to a power of 5000 kW,thanks to the simplicity and sturdiness of theoperating mechanisms and to the long life of themain contacts.To ensure protection against short-circuits, it isnecessary to combine the contactors with appro-priate current-limiting fuses. This solution alsomeans the equipment costs can be reduced evenfurther on the load side (cables, current transform-ers, busbar and cable fixing devices, etc.), andalso means the user is unlikely to have to carry outany subsequent installation extensions withconsequent increases in network power.


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Table for selection of the K factorUn [kV] In [A]

3.6 63 100 160 200 250 3157.2 63 100 160 200 250 31512 63 100 160 200 – –

K 0.75 0.75 0.7 0.7 0.6 0.6

Fig. B - Blowing time curve and table for selection of the K factor. ABB CMF type fuses.

Curve of blowing times ofa fuse

Fig. A - Fuse selection curves for motor starting. ABB CMF type fuses.

In = rated current of the fuseIA = motor starting current


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Nh = number of motor start-ups per hourtA = maximum motor starting time

To check the service conditions, proceed asfollows:– Rated voltage Un. This must be equal to or

higher than the service voltage of the installa-tion. The network level of insulation must be

checked to ensure it is higher than the value ofthe operating overvoltage generated by thefuses, which, for the fuses used by ABB, is wellbelow the limit fixed by the IEC 282-1 Stand-ards.

– Rated current In. This must be selected byconsulting the diagrams in fig. A which refer tostarting with fairly even time intervals, except forthe first two start-ups of each hourly cycle whichcan take place in immediate succession. Eachdiagram refers to a different starting time: 6 s -15 s - 60 s respectively. In case of start-upsoccurring close together, the starting currentmust also be checked to ensure it does notexceed the value of If x K, where If is the fuseblow out current in correspondence with themotor starting time and K is a minor factor of theunit, a function of the In of the fuse taken fromthe table in fig. B.

– Full load current of the motor. The ratedcurrent of the fuse must have a value equal to orgreater than 1.33 times the value of the rated fullload current of the motor. This condition is,moreover, always obtained for the motorsstarted under full voltage for which the proce-dure described for selection of the rated currentof the fuse necessarily imposes values whichare always greater than 1.33 In.

– Short-circuit current. The short-circuit current-limiting curves shown in fig. C make it possibleto appreciate the short-circuit current limitingfeatures on the load side of the fuses involved inthe fault, which implies the possibility of smallersizing of the equipment on the load side.

Example of inverse time fuse-relaycoordination for overloadMotor characteristics:Pn = 1000 kWUn = 6 kVlavv ≈ 5 In = 650 ATavv = 6 sNo. operations/hour = 16.

From the curve with starting time 6 s in fig. A, incorrespondence with the starting current value650 A, the straight line traced for 16 start-ups perhour intersects with the field of the 250 A fuse.

Fig. C - Short-circuit current-limiting curves.ABB CMF type fuses.

Is = symmetrical prospective short-circuit current

Ip = current limited by the fuse (peak value)


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From the blow-out time curve it can be seen thatthe 250 A fuse blows in 6 s (starting time) when itis crossed by a current of 1800 A.From the table in fig. B, the K coefficient for the250 A size is 0.6, from which the valueIf x K = 1080 A is taken, which is greater than thestarting current (650 A). Use of the 250 A fuse istherefore also confirmed by observing this condi-tion, which regards the possibility of start-upsoccurring close together.By observing the blow-out curve of the 250 A fuse,the necessity of using an inverse time or a definitetime relay against overloads can be seen. Itshould be remembered that prolonged overheat-ing, above the temperature foreseen by theinsulating class, is dangerous and can seriously

jeopardise the life of electrical machines.Fig. D shows the graph for the motor dealt with inthe example.

Icn = maximum short-circuit current which can interrupt the contactor in amperesIa = motor starting current in amperesIn = rated motor current in amperest = time in secondsI = current in amperesF = time-current characteristic of the 250 A fuseT = inverse time characteristic of the indirect relay for protection against overload (K51)

Ip = peak value of the motor connection current

Fig. D - Graph showing co-ordination between 250 A fuse and inverse time relay.

Connection diagram.

Motor startingMotor starting raises the problem of the highinrush power consumption. In most cases, sincethe motors are asynchronous, the starting currentcan have the following

Documents

vacuum cntactor