ABB V-Contact VSC Series Kurzanleitung

V-ContactVSC

Installation and service instructions

7.2/12 kV - 400 A

For your safety!

Make sure that the installation room (spaces, divisions and am-

bient) is suitable for the electrical apparatus.

Check that all the installation, putting into service and mainte-

nance operations are carried out by qualified personnel with suit-

able knowledge of the apparatus.

Make sure that the standard and legal prescriptions are com-

plied with during installation, putting into service and mainte-

nance, so that installations according to the rules of good work-

ing practice and safety in the work place are constructed.

Strictly follow the information given in this instruction manual.

Check that the rated performance of the apparatus is not ex-

ceeded during service.

Check that the personnel operating the apparatus have this in-

struction manual to hand as well as the necessary information

for correct intervention.

Pay special attention to the danger notes indicated in the manual

by the following symbol:

Responsible behaviour safeguards

your own and others’safety!

For any requests, please contact the

ABB Assistance Service.

Index

I. Introduction 3

II. Programme for environmental protection 4

III. Application of the standards for X-ray emission 4

IV. Safety information 4

V. Qualified personnel 5

VI.Interventions in the field 5

1. Description 6

1.1.“MAC” magnetic drive 6

1.2. Versions available 7

1.3. Characteristics 7

1.4. Performances 8

1.5. Contactor auxiliary contacts 8

1.6. Compliance with Standards 8

1.7. Protection against short-circuit 8

2. Checking on receipt 9

3. Handling 10

3.1. Handling using a lifting or fork-lift truck 10

3.2. Handling and lifting using a crane for withdrawable contactors 11

4. Storage 11

5. Installation 12

5.1. General 12

5.2. Installation and operating conditions 12

5.3. Normal conditions 12

5.4. Special conditions 12

5.5. Overall dimensions 13

5.6. Assembly and making the connections 15

5.7. Description of the closing and opening operations 20

5.8. Manual emergency opening operation 22

6. Putting into service 23

6.1. General procedures 23

6.2. Racking the contactor in and out 24

6.3. Accessories and tools for the operations 27

7. Maintenance 28

7.1. General 28

7.2. Inspection 28

7.3. Servicing 29

7.4. Servicing following a short-circuit or overload 30

7.5. Repairs 30

7.6. Instructions for dismantling or replacing fuses 31

7.7. Replacement of the contactor fuses 32

7.8. Mounting and dismantling the short-circuit busbar 35

7.9. Putting the contactor back into service 35

8. Spare parts and accessories 36

8.1. List of spare parts 36

I. Introduction

The instructions in this manual refer to the fixed and withdrawable versions of the VSC series of

contactors. For correct use of the product, please read it carefully.

For the electrical and construction characteristics and the overall dimensions of the V-Contact

VSC contactors, please also see technical catalogue 1VCP000165.

Like all the apparatus we manufacture, theV-Contact vacuum contactors are designed for differ-

ent installation configurations. Furthermore, this apparatus allows further technical and con-

struction modifications (at the customer’s request) to adapt to special installation requirements.

Consequently, this manual may not provide information concerning special configurations of the

apparatus.

Apart from this manual, it is therefore always necessary to consult the latest technical documen-

tation (circuit and wiring diagrams, assembly and installation drawings, any protection coordina-

tion studies, etc.), especially regarding any variants requested in relation to the standardised

configurations.

Only use original spare parts for maintenance operations. The use of non-original spare parts

can cause hazardous malfunctions and the apparatus warranty will no longer be valid.

Please refer to the technical sheets of the Kits for correct assembly of the accessories and/or

spareparts.For furtherinformation, also see the 1VCP000165technical catalogueof the contactor

and the spare parts catalogue.

This manual and all the enclosed drawings must be considered an integral part of the apparatus.

They must be easily to hand at all times for revision and reference.

These instructions do not intend to cover all the details, configurations or variants of the appara-

tus, storage or installation. For this reason, the information given below may sometimes not

contain the instructions regarding special configurations. This does not relieve the user from

their responsibility for using good technical working practices in application, installation, service

and maintenance of the apparatus purchased. Should further information be required, please

contact ABB.

WARNING

Dangerous voltages. Risk of death, serious injury to people, damage to

the apparatus or other objects.

Before carrying out any maintenance operations, turn the power supply off

and earth the apparatus. Read and understand this instruction manual

before installation, service or maintenance of the apparatus.

Maintenance must only be carried out by skilled personnel.The use of

unauthorized spare parts for repairs to the apparatus, modification of the

apparatus itself, or any tampering by unskilled personnel creates hazardous

conditions which may cause death or serious injury to people, or damage to

the apparatus or other objects. Carefully follow all the safety instructions

given in this manual.

II. Environmental protection programme

The V-Contact vacuum contactors are manufactured in accordance with the ISO 14000 Stan-

dards (Guidelines for environmental management).The production processes are carried out in

compliance with the Standards for environmental protection in terms of reduction in energy

consumption as well as in raw materials and production of waste materials.All this is thanks to

the medium voltage apparatus manufacturing facility environmental management system.

III. Application of the X-ray emission Standards

One of the physical properties of vacuum insulation is the possibility of X-ray emission when the

interrupter contacts are open. The tests carried out at the PTB laboratories (Physikalisch-

Technische Bundesanstalt, in Brunswick - Germany) show that local emission at a distance of

10 cm from the interrupter or pole surface, does not exceed 1 mSv/h.It follows that:

– at the rated service voltage the use of vacuum interrupters is absolutely safe;

– application of the withstand voltage at power frequency, according to the IEC 60694 Standard,

is safe;

– application of a voltage higher than the withstand voltage at power frequency or of a direct

current test voltage, specified in the IEC Standard, cannot be used;

– limitation of the above-mentioned local phenomena, on interrupters with open contacts, de-

pends on keeping the specified distance between the contacts. This condition is intrinsically

guaranteed by correct operation of the drive and by transmission system adjustments.

IV. Safety information

All the installation, putting into service, running and maintenance operations must be carried out

by suitably qualified personnel with in-depth knowledge of the apparatus.

Make sure that the personnel working on the apparatus have this manual to hand and all the

information required for correct intervention.

Strictly follow the information given in this instruction manual.

Make sure that during the installation, service and maintenance stages the standard and legal

requirements for constructing the installations in accordance with the regulations for safety in

the workplace are respected.

Check that the rated performance of the apparatus is not exceeded during service.

V. Qualified personnel

For the purposes of this manual and the product rating plates, a qualified person is intended as

a person who:

1) carefully reads the instruction manual all the way through.

2) has in-depth knowledge of the installation, construction and service of the apparatus and

knows about the risks connected with any interventions.

3) is qualified and authorised to energise, de-energise, earth and identify the circuits according

to the safety procedures and the local regulations in force.

4) is qualified and authorised to put this apparatus into service, and to carry out maintenance

and repair operations on it.

5) is trained in correct use of protective equipment, such as rubber gloves, hard hats, protective

goggles, face shields, flameproof clothing, etc. according to the safety procedures and the

local regulations in force.

6) is trained in first-aid procedures.

VI. Interventions in the field

ABB can provide competent and well-trained personnel for assistance in the field to give techni-

cal guidance and consultancy regarding installation, complete overhauling, repair and mainte-

nance of apparatus.

Fig. A

Magneticcircuitin theclosedposition. Fig. B

Magnetic circuit with opening coil sup-

plied.

Fig. C

Magnetic circuit in the open position.

1. Description

Themedium voltageV-ContactVSC contactors

are pieces of apparatus suitable for operating

in alternating current and are normally used to

control users requiring a high number of hourly

operations.

The basic contactors consist of:

• moulded polyester resin monobloc contain-

ing the vacuum interrupters

• bistable electromagnet drive

• multi-voltage feeder

• auxiliary contacts

• mechanical status indicator (open/closed).

Apart from what is specified for the fixed

contactors, the withdrawable contactors also

consist of:

• fuseholders preset for DIN or BS fuses (ac-

cording to the customer’s requirements)

• automatic opening device for intervention of

even a single fuse

•truck

• lock which prevents closing during the rack-

ing-in/out operation.

The V-Contact VSC contactor introduces the

drive with permanent magnets - already widely

used,experimentedand appreciated inmedium

voltage circuit-breakers - into the worldwide

panorama of medium voltage contactors.

The experience acquired by ABB in the field of

medium voltage circuit-breakers fitted with

drives with “MABS” permanent magnets, has

made it possible to develop an optimised ver-

sion of the actuator (Bistable MAC drive) for

medium voltage contactors.

Thedriveisoperatedbymeans ofan electronic

feederwhich, with just three versions,can cover

all the power supply voltage values required by

the major international Standards.

1.1.“MAC” magnetic drive

Based on the experience gained in the field of

circuit-breakers with magnetic drive, ABB has

implemented this technology in the field of

contactors.

Themagnetic drive adapts perfectly to this type

of apparatus thanks to its precise and linear

travel.

Thismeans that a simple and direct axial trans-

mission of the movement to the moving con-

tacts of the vacuum interrupter can be realised,

with both electrical and mechanical benefits.

Thedrive, which isof bistabletype, is fitted with

an opening and a closing coil.

The two coils - individually energised - allow

the drive core to be moved from one of the two

stable positions to the other.

The drive shaft is solid with an iron core which

is immersed and held in position in a field gen-

erated by two permanent magnets (fig. A).

Energising the coil opposite to the magnetic

latching position (fig. A) of the core, the mag-

netic field (fig. B) is generated, which attracts

and moves the core into the opposite position

(fig. C).

Every opening and closing operation creates a

magnetic field concordant with the one gener-

ated by the permanent magnets, with the ad-

vantage, during service, of keeping the inten-

sity of the field itself constant as the number of

operations carried out increases.

Contactor Reference VSC 7 VSC 12 VSC/P 7 VSC/P 12

IEC 60470

Rated voltage [kV] 4.1 7.2 12 7.2 12

Rated insulation voltage

Withstand voltage at 50 Hz [kV] 23 28 23 28

Impulse withstand voltage [kVbil] 60 75 60 75

Rated frequency [Hz] 50-60 50-60 50-60 50-60

Rated service current [A] 4.101 400 400 400 400

Short-time withstand current

Short-time withstand current for 1 s [A] 4.5 6.000 4.000 6.000 4.000

Short-time withstand current for 30 s [A] 4.5 2.500 2.500 2.500 2.500

Rated peak current [kA] 4.6 15 15 15 15

Rated short-circuit time (tk) [s] 4.7 1 1 1 1

Rated values

Operations / hour [N.] 900 900 900 900

Rated load and overload characteristics in category of use:

- (Category AC4) 100 closing operations [kA] 4.103, 4.104 4.000 4.000 4.000 4.000

- (Category AC4) 25 opening operations [kA] 4.103, 4.104 4.000 4.000 4.000 4.000

Rated voltage of the switching devices and auxiliary circuits

4.8, 4.9

Feeder type 1 (24 ...60 DC)

Feeder type 2 (110 ...130 AC-DC)

Feeder type 3 (220 ...250 AC-DC)

Normal current [A] 4.4.101 400 400 400 400

Electrical life (category AC3) [N.] 29.mar 100.000 100.000 100.000 100.000

Electrical life at rated current (cat.AC1 - electrical latching) [N.] 29.mar 1.000.000 1.000.000 1.000.000 1.000.000

Mechanical life [N.] 1.000.000 1.000.000 1.000.000 1.000.000

Short-circuit breaking capacity (O-3min-CO-3min-CO) [A] 4.107, 6.104 6.000 4.000 6.000 4.000

Short-circuit making capacity (O-3min-CO-3min-CO) [A] 4.107, 6.104 15.000 8.000 15.000 8.000

Opening time with electrical latching [ms] 20..30 20..30 20...30 20...30

Closing time [ms] 30..50 30..50 30...50 30...50

Weight [Kg] 20 20 49(*) 49(*)

Overall dimensions [mm] H 371 391 635 635

[mm] W 350 350 531 531

[mm] D 215 215 657 657

Tropicalisation 721-2-1

1.3. Characteristics

(*) Without fuses.

The energy needed for operation is not sup-

plied directly by the auxiliary power supply, but

is always “stored” in the capacitor which acts

as an energy accumulator, and therefore op-

erationalwaystakesplacewithconstant speeds

and times, regardless of the divergence of the

power supply voltage from the rated value.

The auxiliary power supply only has the aim of

keeping the capacitor charged. Consumption

isthereforeminimal.Thepowerrequired is less

than 5 W. In order to re-instate the rated en-

ergy value in the capacitor following an opera-

tion, there is an inrush of 15 W for a duration of

a few tens of milliseconds.

Careful selection of the components and a pre-

cise design make the electronic multi-voltage

feeder extremely reliable, unaffected by elec-

tromagnetic interference generated by the sur-

rounding environment and free of any emis-

sions which may affect other apparatus placed

in the vicinity.

Thesecharacteristics have made itpossible for

theV-ContactVSC contactors to pass the elec-

tromagnetic compatibility tests (EMC) and ob-

tain the CE mark.

1.2.Versions available

The V-Contact VSC are available in the fixed

and withdrawable version with rated voltages

of 7.2 kV and 12 kV.

Their main characteristics are listed below.

Contactor VSC7-VSC/P 7 VSC12-VSC/P 12

Rated voltage [kV] 2.2/2.5 3.6 3.6/7.2 6.2/7.2 12

Ultimate performances for:

Motors [kW] 1.000 1.500 1.500 3.000 5.000

Transformers [kVA] 1.100 1.600 2.000 4.000 5.000

Capacitors [kVAR] 1.000 1.500 1.500 3.000 4.800 (1)

Ultimate performances for back-to-back

capacitor banks

Rated current [A] 250 250 250 250 Contact ABB

Max. transient current of the capacitor [kA] 8 8 8 8 Contact ABB

Max.transient frequency of the capacitor [kHz] 2.5 2.5 2.5 2.5 Contact ABB

(1)Overvoltage surge ar-

resters are compulsory

between phases and

between phase and

earth.

Un 24 ... 250 V AC-DC

Rated current Ith2= 10 A

Insulation voltage 2500 V 50 Hz (per 1 min)

Electric resistance 3 mOhm

Rated current and breaking capacity in category AC11 and DC11

Un Cos ϕT In Icu

220 V ~ 0,7 — 2,5 A 25 A

24 V – — 15 ms 10 A 12 A

60 V – — 15 ms 6 A 8 A

110 V – — 15 ms 4 A 5 A

220 V – — 15 ms 1 A 2 A

1.5. Contactor auxiliary circuits

10 auxiliary contacts (5 normally open and 5 normally closed) are available on the contactor for

the customer’s use, with the following characteristics.

1.6. Compliance with Standards

V-Contact contactors comply with the Stan-

dards of the major industrialised countries and

in particular with the following Standards:

– IEC 60470 (2000) and IEC 632-1 (1978) for

the contactor;

– IEC 60694 (2002).

1.7. Protection against short-circuit

The value of the installation short-circuit cur-

rent could exceed the breaking capacity of the

contactor. The contactor must therefore have

adequate protection against short-circuit.

Fuse replacement must only be car-

ried out by qualified personnel.

1.4. Performances

Andere Handbücher für V-Contact VSC Series

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