ABB VM1 Guida rapida

Medium voltage products

VM1/A/P

Installation and service instructions

ANSI: ... 15 kV; ... 1200 A; ... 31.5 kA

For your safety! 1

1. Foreword 2

1.1. Introdution 2

1.2. Environmental protection programme 2

1.3. Drawout 3

1.4. Information on this booklet 3

1.5. Principle of extinction of the vacuum interrupter 3

1.6. Application of the X-ray emission Standards 3

2. Introduction and safe practices 4

2.1. Introduction 4

2.2. Safe practices 4

2.3. Standard and regulations 5

2.4. Service conditions 5

3. Reveiving, handling, and storage 6

3.1. Receiving and checking 6

3.2. Handling 7

3.3. Storage 8

4. Insertion and removal, putting into service 9

4.1. Insertion and removal od withdrawable

circuit-breaker 9

4.2. Putting into service 10

5. Installation 14

5.1. General 14

5.2. Trip curves 14

5.3. Interlocks/protection against malfunction 15

5.4. Racking 16

5.5. Disconnect through connect 16

5.6. Connect through disconnect 16

5.7. Connect through disconnect emergency rack out 17

5.8. Installation of withdrawable circuit-breakers 17

6. Description 18

6.1. Basic structure of the withdrawable circuit-breaker 18

6.2. Circuit-breaker structure of the circuit-breaker 18

6.3. Drive structure 20

6.4. Structure of the control module 21

6.5. General characteristics of withdrawable

circuit-breakers for PowerCube modules 22

6.6. Types of withdrawable circuit-breakers available

for PowerCube modules 23

6.7. Mechanism and electrical operation 23

6.8. Control scheme 24

6.9. Standard fittings 25

6.10. Optional accessories 26

7. Operation 28

7.1. Circuit-breaker function Magnetic actuator 28

7.2. Circuit-breaker control 28

7.3. Opening and closing procedure 29

7.4. Autoreclosing sequence 29

7.5. Control module 29

7.6. Functions of the control module 29

7.7. “READY” signalling 30

7.8. Truck locking magnet (compulsory device) 30

7.9. Circuit-breaker control card 31

7.10. Characteristics of the control module contacts

without potential 32

8. Maintenance 33

8.1. General 33

8.2. Maintenance on VM1/A/P circuit-breakers 33

8.3. Operating life 34

8.4. Procedure for discharging the capacitor/s 34

8.5. Mechanism and transmission system 34

8.6. Inspections and functional tests interruption

device in general 35

8.7. Servicing 35

8.8. Circuit-breaker pole 36

8.9. Repairs 36

8.10. Control wiring 37

8.11. Primary circuit assembly: (Pole) 37

9. Maintenance 38

9.1. Vacuum interrupters 38

10. Spare parts and accessories 39

10.1. List of spare parts 39

11. Product quality and environmental protection 40

12. Overall dimensions 41

13. Electric circuit diagram 42

For your safety!

• Make sure that the installation room (spaces, divisions

and ambient) is suitable for the electrical apparatus.

• Check that all the installation, putting into service and

maintenance operations are carried out by qualified

personnel with suitable knowledge of the apparatus.

• Make sure that the standard and legal prescriptions

are complied with during installation, putting into

service and maintenance, so that installations

according to the rules of good working 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 exceeded during service.

• Check that the personnel operating the apparatus

have this instruction manual to hand as well as the

necessary information for correct intervention.

• Pay special attention to the 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.

WARNING

ALL THE INSTALLATION, PUTTING INTO SERVICE,

RUNNING AND MAINTENANCE OPERATIONS

MUST BE CARRIED OUT BY SKILLED

PERSONNEL WITH IN-DEPTH KNOWLEDGE OF

THE APPARATUS.

Style Frame width (inches) Voltage rating Continuous current

rating

Interruption ratings

(symmetrical RMS)

Configurations

available

450mm Frames 450mm (17.7 inches) 5-15 kV 1200 A to 31.5 kA Drawout

1.1. Introduction

This publication contains the information needed to install

medium voltage Vmax/W and Vmax circuit-breakers and put

them into service.

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

Like all the apparatus we manufacture, the Vmax/W and

Vmax circuit-breakers are designed for different installation

configurations.

However, they do allow further technical and construction

modifications (at the customer’s request) to adapt to special

installation requirements.

For this reason, the information given below may sometimes

not contain instructions concerning special configurations.

Apart from this manual, it is therefore always necessary to

consult the latest technical documentation (circuit and wiring

diagrams, assembly and installation drawings, any protection

coordination studies, etc.), especially regarding any variants

requested in relation to the standardised configurations.

For example, the racking and interlock sections do not apply

to the fixed mount breaker styles. All information in this

booklet was current at the time of printing. Unless otherwise

noted, all references in this booklet are determined by viewing

the circuit-breaker from the front.

Only use original spare parts for maintenance operations.

For further information, please also see the technical

catalogue of the circuit-breaker.

1.2. Environmental protection programme

The VM1 circuit-breakers are manufactured in accordance

with the ISO 14000 Standards (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.

1. Foreword

CAUTION

1.3. Drawout

A Drawout circuit-breaker is a breaker that may be removed

from a cell without unbolting connections or mounting

supports. It is intended for use in ABB PowerCube modules.

It contains primary and secondary disconnects and provides

two operating positions: Disconnect and Connect.

1.4. Information on this booklet

This booklet provides information for the VM1/A/P circuit-

breakers as described below. Not all sections of the bulletin

apply to all types of VM1/A/P circuit-breakers. For example,

the racking and interlock sections do not apply to the fixed

mount breaker styles. All information in this booklet was

current at the time of printing. Unless otherwise noted, all

references in this booklet are determined by viewing the

circuit-breaker from the front.

The purpose of this manual is to provide instructions for

unpacking, storage, installation, operation, and maintenance

for VM1/A/P vacuum circuit-breakers. This manual should be

carefully read and used as a guide during installation, initial

operation, and maintenance.

The specific ratings of each model circuit-breaker are listed on

the individual nameplates. The VM1/A/P circuit-breakers are

protective devices. As such, they are maximum rated devices.

In no event should they be applied outside of their nameplate

ratings.

1.5. Principle of extinction of the

vacuum interrupter

Given the relatively low static pressure of the interruption

chamber (between 10-4 and 10-8 hPa), a relatively limited

distance between the contacts is required to obtain high

dielectric strength. The vacuum arc is extinguished on the first

passage of the current through natural zero.

Considering the limited distance between the contacts, the

high conductivity of the plasma of metallic vapours, the

drop in voltage of the arc and, moreover, the short arcing

time, the energy associated with the arc is extremely limited,

therefore producing benefits for the useful life of the contacts

obtained and, consequently, for the useful life of the vacuum

interrupters.

1.6. 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 speciﬁc 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 industrial frequency,

according to the IEC 62271-100, VDE 0670 and IEEE

C37.04 Standards, is safe;

– application of a voltage higher than the withstand voltage

at industrial frequency or of a direct current test voltage

in direct current, specified in the IEC, VDE and ANSI/IEEE

Standards, cannot be used;

– limitation of the above-mentioned local phenomena, with

interrupters with open contacts, depends on keeping the

specified distance between the contacts.

This condition is intrinsically guaranteed by correct operation

of the operating mechanism and by adjustments of the

transmission system.

2. Introduction and safe pratices

2.2. Safe practices

VM1/A/P circuit-breakers are equipped with high energy

/ high speed mechanisms. The design includes several

interlocks and safety features which help ensure safe and

proper operating sequences. To ensure safety of personnel

associated with installation, operation, and maintenance of

these circuit-breakers, the following recommendations must

be followed:

Only qualified persons, as defined in the National Electric

Safety Code, who are familiar with the installation and

maintenance of medium voltage circuits and equipment

should be permitted to work on these circuit-breakers

THE CIRCUIT-BREAKERS DESCRIBED IN THIS

BOOK ARE DESIGNED AND TESTED TO OPERATE

WITHIN THEIR NAMEPLATE RATING. OPERATION

OUTSIDE OF THESE RATINGS MAY CAUSE

EQUIPMENT TO FAIL, RESULTING IN PROPERTY

DAMAGE, BODILY INJURY AND/OR DEATH.

ALL SAFETY CODES, SAFETY STANDARDS AND/

OR REGULATIONS AS THEY MAY BE APPLIED TO

THIS TYPE OF EQUIPMENT MUST BE ADHERED

TO STRICTLY.

Read these instructions carefully before attempting any

installation, operation, or maintenance of these power circuit-

breakers.

• Do not work on an energized circuit-breaker.

• Do not work on a circuit-breaker unless all

components are disconnected by means of a visible

break and securely grounded.

• Do not work on a circuit-breaker with power supplied

to the secondary control circuit.

• Do not defeat safety interlocks. This may result in

bodily injury, death and/or equipment damage.

• Do not work on a closed circuit-breaker.

• Do not work on a circuit-breaker with charged energy

capacitors.

• Do not use a circuit-breaker by itself as the sole

means of isolating a high voltage circuit.

• Do not leave a circuit-breaker in an intermediate

position in a cell. Always place the circuit-breaker in

the disconnect, test or connect position.

2.1. Introduction

The purpose of this manual is to provide instructions for

unpacking, storage, installation, operation, and maintenance

for VM1/A/P vacuum circuit-breaker. This manual should be

carefully read and used as a guide during installation, initial

operation, and maintenance.

The specific rating of each model circuit-breaker are listed

on the individual nameplate. The VM1/A/P circuit-breaker are

protective device. As such, they are maximum rated device.

In no event should they be applied outside of their nameplate

ratings.

The VM1/A/P type vacuum circuit-breakers are designed for

indoor installation in air-insulated switchgear.

In respect of the technical characteristics, VM1/A/P circuit-

breakers are suitable for operation of electric circuits under

normal and fault service conditions.

The vacuum circuit-breakers have particular advantages when

used in systems with a high frequency of operations and/

or which lead to a certain number of short-circuit trips. The

VM1/A/P type vacuum circuit-breakers stand out for their

particularly high operating reliability, extremely long useful life

expectancy and for being completely maintenance-free.

The VM1/A/P type vacuum circuit-breakers are available in

the withdrawable version. The basic structure is shown in the

“Technical data” section.

WARNING

FAILURE TO OBSERVE THE REQUIREMENTS OF

OSHA STANDARD 1910.269 CAN CAUSE DEATH

OR SEVERE BURNS AND DISFIGUREMENT. THAT

STANDARD SPECIFICALLY PROHIBITS THE

WEARING OF POLYESTER, ACETATE, NYLON, OR

RAYON CLOTHING BY EMPLOYEES WORKING

WITH EXPOSURE TO ELECTRIC ARCS OR

FLAMES.

NOTE

2.3. Standards and regulations

2.3.1. Fabrication

The VM1/A/P circuit-breakers conform to the following

Standards:

• DIN VDE 0670, part 104, and IEC 62271-100

• DIN VDE 0847, part 4, and IEC 61000-4

• IEEE C37.04

2.3.2. Installation and operation

For assembly and operation, please refer to the relative

regulations, and in particular to:

– ANSI / NFPA70

– NEC

2.4. Service conditions

Normal service conditions

Follow the recommendations in the IEC 60694 and 62271-

100 Standards. In more detail:

IEEE C37.09

IEEE C37.54

Ambient temperature

Maximum + 40 °C

Average maximum over 24 hours + 35 °C

Minimum (according to class – 5),

apparatus for indoor installation - 30 °C

Humidity

The average value of the relative humidity, measured for a period longer

than 24 hours, must not exceed 95%

The average value of the pressure of the water vapour without

condensation, measured for a period longer than 24 hours, must not

exceed 2.2 kPa.

The average value of the relative humidity, measured for a period longer

than 1 month, must not exceed 90%.

The average value of the pressure of the water vapour, measured for a

period longer than 1 month, must not exceed 1.8 kPa.

Altitude

< 1000 (3300 ft.) m above sea level.

For application above 1000m (3300 ft.) C37.20.2 is applicable

Climate

To avoid the risk of corrosion or other damage in areas:

– with a high level of humidity, and/or

– with rapid and large temperature variations, take appropriate steps

(for example, by using suitable electric heaters) to prevent condensation

phenomena.

For special installation requirements or other

operating conditions, please contact ABB.

3. Receiving, handling, and storage

Fig. 1

Caption

A Circuit-breaker rating plate.

B Drive ratingplate.

1 Type of apparatus.

2 Symbols of compliance with Standards.

3 Serial number.

4 Circuit-breaker characteristics.

5 Characteristics of the drive auxiliaries.

Immediately upon receipt of the circuit-breaker(s), examine

the carton(s) to determine if any damage or loss was

sustained during transit. If damage or indication of rough

handling is evident, file a damage claim at once with the

carrier and promptly notify the nearest district office. ABB

is not responsible for damage to goods which occur after

delivery. However, ABB will lend assistance if notified of

claims. Use care in unpacking the circuit-breaker to avoid

damaging any circuit-breaker parts.

Unpack circuit-breakers as soon as possible after receipt.

If unpacking is delayed, difficulty may be experienced in

making a claim for damages not evident upon receipt.

Check the contents of each carton against the packing list

before discarding any packing material. If any discrepancy

is discovered, promptly notify the nearest district office.

Information specifying the purchase order number, carton

number, and part numbers of damaged or missing parts

should accompany the claim.

On receipt, check the state of the apparatus, integrity of the

packing and correspondence with the nameplate data (see

Fig.1) with what is specified in the order confirmation and in

the accompanying shipping notes.

Also make sure that all the materials described in the shipping

notes are included in the supply.

Should any damage or irregularity be noted in the supply

on unpacking, notify ABB (directly or through the agent or

supplier) as soon as possible and in any case within five days

of receipt.

The apparatus is only supplied with the accessories specified

at the time of ordering and validated in the order confirmation

sent by ABB.

The accompanying documents inserted in the shipping

packing are:

– instruction manual (this document)

– test certification

– identification label

– copy of the shipping documents

– electric wiring diagram.

Other documents which are sent prior to shipment of the

apparatus are:

– order confirmation

– original shipping advice notes

– any drawings or documents referring to special

configurations/conditions.

CIRCUIT-BREAKER ANSI C37.04

VM1/A/P 15.12.32

CLASSIFICATION

SN 1VC1............................... PR. YEAR 2010

MASS 84 kg

VOLTAGE 15 kV

LIGHTNING IMPULSE WITHSTAND VOLTAGE 95 kV

FREQUENCY 60 Hz

NORMAL CURRENT 1200 A

SHORT TIME WITHSTAND CURRENT 31.5 kA

DURATION OF SHORT CIRCUIT 2 s

SHORT CIRCUIT BREAKING CURRENT 31.5 kA

D.C. COMPONENT < = 40 %

RATED INTERRUPTING TIME < = 50 ms

INSTRUCTION BOOK 1VCD600916R000

CABLE-CHARGING BREAKING CURRENT A

OPERATING SEQUENCE O-0,3S-CO-3MI N-CO

ELECTRICAL DIAGRAM 1VCD400051 (E0926)

FIG.01 FIG.02 FIG.05 FIG.OS FIG.12

llllllllIIlllllllIlllllllIllllllllllllllllllIlIlllllllIlllllllIllllllllll

A3 OPERATING MECHANISM

-RL2 110 V

AUXILIARY VOLTAGE 110...250 V

100...240 V

Made by ABB, Italy

VM1/A/P circuit-breakers are subject to complete factory

production tests and inspection prior to packaging and

shipment. The shipping package is designed to provide

reasonable protection during shipment and to provide

convenient handling. Accessories such as opening handles

and racking handles are shipped separately from the circuit-

breaker.

The circuit-breaker is shipped in special packing, in the open

position.

Each piece of apparatus is protected by a plastic cover

to prevent any infiltration of water during the loading and

unloading stages and to keep the dust off during storage.

3.1. Receiving and checking

BEFORE CARRYING OUT ANY OPERATION,

ALWAYS MAKE SURE THAT THE CAPACITORS

ARE DISCHARGED AND THAT THE APPARATUS IS

IN THE OPEN POSITION.

CAUTION

Fig. 2a

DO NOT pull the circuit-breaker by the front handles with the

circuit-breaker in any position other than full Disconnect to

avoid injuries at the hands.

DO NOT move the circuit-breaker by pushing on the

embedded pole assemblies or primary leads of the embedded

poles. Damage and misalignment of the pole assemblies will

occur if force is applied to them.

3.2. Handling

VM1/A/P circuit-breaker shipping containers are designed to

be handled by fork lift (not supplied).

Once removed from the shipping container, the circuit-breaker

wheels are designed to move the circuit-breaker across a

smooth, paved surface.

Care must be taken not to damage the secondary plug

(item 1, Figure 2a) when transporting, rolling, or handling the

VM1/A/P circuit-breakers.

Fig. 2b

Lifting hook

The lifting hook is designed for general lifting and lowering

of the device, such as for removal from shipping pallets or

for lifting onto and off work tables. The lifting hook is not

designed to be used for insertion or removal of the circuit-

breaker from the switchgear compartment and therefore

should never be used for any such purposes, instead, use the

appropriate optional lift truck.

• ALWAYS FOLLOW SAFE WORK

PRACTICES WHEN LIFTING

CIRCUIT-BREAKER TO PROTECT

THE SAFETY OF PERSONNEL

AND EQUIPMENT.

• ALWAYS INSPECT LIFTING

HOOK FOR SIGNS OF WEAR OR

DAMAGE BEFORE USE.

• DO NOT USE A LIFTING HOOK

THAT IS DAMAGED OR WORN.

• THE LIFTING DEVICE (I.E. HOIST,

WENCH) SHOULD BE SUITABLY

RATED FOR LIFTING THE

CIRCUIT-BREAKER LOAD.

• ALWAYS REFER TO FIG.6 BELOW

FOR THE PROPER INSTALLATION

OF THE LIFTING HOOK.

• THE LIFTING HOOK IS NOT

TO BE USED FOR INSERTION

OF DRAWOUT CIRCUIT-

BREAKERS INTO SWITCHGEAR

COMPARTMENTS.

• THE LIFTING HOOK IS NOT TO BE

USED AS THE SOLE MEANS OF

SUPPORTWHEN SERVICING THE

CIRCUIT-BREAKER.

CAUTION

C B A

123

3.3. Storage

When a period of storage is foreseen, our workshops can (on

request) provide suitable packing for the specified storage

conditions.

On receipt the apparatus must be carefully unpacked and

checked as described in Checking on receipt.

If immediate installation is not possible, the packing must be

replaced, using the original material supplied.

Insert special hygroscopic substances inside the packing,

using at least one standard packet per piece of apparatus.

Should the original packing not be available and immediate

installation is not possible, store in a covered, well-ventilated,

dry, dust-free, non-corrosive ambient, away from any

flammable materials and at a temperature between –5 °C and

+45 °C.

In any case avoid accidental impact or positions which stress

the structure of the apparatus.

Fig. 2c

Version Pole centre

distance Rated current Hole

Withdrawable 150 mm up to 1250 A A

Before carrying out any operations, always make sure that the

capacitors are discharged.

To lift and handle the circuit-breaker, proceed as follows (Fig. 2c):

– use a special lifting tool (1) (not supplied) fitted with ropes

with safety hooks (2);

– insert the hooks (2) in the supports (3) fixed to the frame

of the circuit-breaker and lift. Latch the hooks (2) into the

support holes (3) according to the type of apparatus (see

table);

– on completion of the operation (and in any case before

putting into service) unhook the lifting tool (1) and dismantle

the supports (3) from the frame.

During handling, take great care not to stress the insulating

parts and the terminals of the circuit-breaker.

Circuit-breakers should be installed in their permanent

location as soon as possible. If the circuit-breakers are not

placed in service for some time, it is advisable to provide

adequate means of environmental protection. This may be

done by keeping the circuit-breaker in its original shipping

container and storing it in a warm, dry, and uncontaminated

atmosphere. The circuit-breakers should be stored to

minimize condensation. Moisture can cause deterioration of

metal parts and high voltage insulation.

Prior to storage of the circuit-breaker, verification should

be made that it is free from shipping damage and is in

satisfactory operating condition.

THE APPARATUS MUST NOT BE HANDLED BY

PUTTING LIFTING DEVICES DIRECTLY UNDER

THE APPARATUS ITSELF. SHOULD IT BE

NECESSARY TO USE THIS TECHNIQUE, PUT

THE CIRCUIT-BREAKER ONTO A PALLET OR A

STURDY SUPPORTING SURFACE (SEE FIG. 3). IN

ANY CASE, IT IS ALWAYS ADVISABLE TO CARRY

OUT LIFTING USING THE SUPPORTS (3).

CAUTION

THE SHIPPING CONTAINERS PROVIDED ARE NOT

DESIGNED FOR STACKING.

CAUTION

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