BA 460 01 E VD4 P.pdf

VD4

Vacuum circuit-breaker

Instruction manual BA 460/01 E

ABB Power Distribution

Your safety first – always!

That's why our instruction manual begins with these recommendations:

• Only install switchgear and/or switchboards in enclosed rooms suitable for

electrical equipment.

• Ensure that installation, operation and maintenance are carried out by

specialist electricians only.

• Comply in full with the legally recognized standards (DIN VDE / IEC), the

connection conditions of the local electrical utility and the applicable safety

at work regulations.

• Observe the relevant information in the instruction manual for all actions

involving switchgear and switchboards.

•

Danger!

Pay special attention to the hazard notes in the instruction manual marked with

this warning symbol.

• Make sure that under operation condition of the switchgear or switchboard

the specified data are not exceeded.

• Keep the instruction manual accessible to all persons concerned with

installation, operation and maintenance.

• The user’s personnel are to act responsibly in all matters affecting safety at

work and the correct handling of the switchgear.

WARNUNG

Anerkannte Regeln der Technik und Betriebsanleitungen

beachten !

Gefährliche Spannung

kann elektrischen Schock und Verbrennungen verursachen.

Vor Aufnahme von Arbeiten jeder Art dieses Gerät unbedingt freischalten,

erden und kurzschließen.

WARNING

Always observe the instruction manual and follow the rules

of good engineering practice !

Hazardous voltage

can cause electrical shock and burns.

Disconnect power, then earth and short-circuit before proceeding

with any work on this equipment.

If you have any further questions on this instruction manual, the members of our

field organization will be pleased to provide the required information.

Contents

Page

Contents

Page

Summary

Despatch and storage

1.1

General

4.1

Condition on delivery

1.2

Standards and specifications

4.2

Packaging

1.2.1 Switchgear manufacture

4.3

Transport

1.2.2 Installation and operation

4.4

Delivery

4.5

Intermediate storage

1.3

Operating conditions

Installation

1.3.1 Normal operating conditions

Commissioning / Operation

1.3.2 Special operating conditions

6.1

Note on safety at work

Technical data

6.2

Preparatory activities

2.1

Technical data

Circuit-breakers

6.3

Operation of the circuit-breaker

6.3.1 Charging the spring energy store

2.2

Technical data

Releases and blocking magnet

6.3.2 Closing and opening

2.3

Technical data

Motor-operated mechanisms

6.3.3 Operating sequence

6.3.4 Run-on block

2.4

Permissible number of switching

operations in relation to breaking current 7

Maintenance

7.1

General

2.5

Dimensions

7.2

Inspection and functional testing

Structure and function

7.2.1 Switching device in general

3.1

Structure of the breaker poles

7.2.2 Stored-energy spring mechanism

3.2

Structure of the breaker operating

mechanism

7.2.3 Breaker pole

7.3

Servicing

3.2.1 Releases, blocking magnet

and auxiliary switches

7.3.1 Switching devices in general

7.3.2 Stored-energy spring mechanism

3.2.2 Mounting of the VD4 on trucks from

other manufacturers

7.3.3 Breaker pole

7.4

Repair

3.3

Function

7.4.1 Replacement of circuit-breaker

parts and accessories

3.3.1 Charging of the spring energy store

3.3.2 Closing procedure

7.4.2 Touch up of surfaces

3.3.3 Opening procedure

7.5

Spare parts and auxiliary materials

3.3.4 Autoreclosing sequence

7.5.1 Spare parts

7.5.2 Auxiliary materials

3.3.5 Quenching principle of the

vacuum interrupter

Application of the

X-ray regulations

We reserve all rights to this publication. Misuse, particularly including duplication and making available of this manual –

or extracts – to third parties is prohibited. The information supplied is without liability. Subject to alteration.

ABB Power Distribution

Summary

1.3

Operating conditions

1.1

General

(Figures 2/1 and 2/2)

Your safety first – always!

1.3.1 Normal operating conditions

Design to VDE 0670, part 1000, “Common

specifications for high-voltage switchgear and

controlgear standards“ and IEC publication

60694, with the following limit values:

The vacuum circuit-breakers of type VD4 are

intended for indoor installation in air-insulated

switchgear systems. Their switching capacity is

sufficient to handle any conditions arising from

switch- ing of equipment and system components

under normal operating and fault conditions,

particularly short-circuits, within the parameters

of their technical data.

Vacuum circuit-breakers have particular advan-

tages for use in networks where there is a high

switching frequency in the working current range

and/or where a certain number of short-circuit

breaking operations are expected. Type VD4

vacuum circuit-breakers are suitable for autore-

closing, and have exceptionally high operating

reliability and long life.

• Ambient temperature:

– Maximum

+40

– Maximum 24 hour average

+35

– Minimum (according to

“minus 5 indoor class”)

–5

• Humidity:

– the average value of the

relative humidity, measured over

a period of 24 h, does not exceed

95%

– the average value of the water

vapour pressure, over a period

of 24 h, does not exceed

2,2 kPa

The vacuum circuit-breakers of type VD4,

designed in column form, can be supplied both

as individual units for fixed installation and

mounted on chassis. Their basic structure is

shown in figures 2/1 and 2/2.

– the average value of the

relative humidity, over a period

of one month, does not exceed

90%

1.2

Standards and specifications

– the average value of the water

vapour pressure, over a period

of one month, does not exceed

1.2.1 Switchgear manufacture

The switchgear complies with the following

specifications in accordance with DIN VDE and

the relevant IEC publications:

1,8 kPa

• Maximum site altitude:

≤

1000 m above sea level.

1.3.2 Special operating conditions

• VDE 0670, part 1000/IEC 60694.

Special operating conditions are to be agreed on

by the manufacturer and user. The manufacturer

must be consulted in advance about each special

operating condition:

1.2.2 Installation and operation

The relevant specifications are to be taken into

account during installation and operation,

particularly:

• DIN VDE 0101, Power installations exceeding

AC 1 kV

• VDE 0105, Operation of electrial installations

• DIN VDE 0141, Earthing systems for special power

installations with rated voltages above 1 kV

• Accident prevention regulations issued by the

appropriate professional bodies or comparable

organisations.

• Site altitude over 1000 m:

– Allow for the reduction in the dielectric

strength of the air.

• Increased ambient temperature:

– Current carrying capacity is reduced.

– Provide additional ventilation for heat

dissipation.

• Climate:

In Germany, these comprise the following safety

regulations:

– Health and Safety at Work Standards VBG 1

and VBG 4

– Avoid the risk of corrosion or other damage in

areas:

• with high humidity and/or

• with major rapid temperature fluctuations.

• Safety guidelines for auxiliary and operating

materials

• Order-related details provided by

ABB Calor Emag.

– Implement preventive measures (e.g. electric

heaters) to preclude condensation pheno-

mena.

ABB Power Distribution

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika: