ABB VD4G-25 - User Manual

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MEDIUM VOLTAGE SERVICE
VD4G
Installation and operating instructions
15 kV - 1250... 3150 A - 25...40 kA
• Make sure that the rated performance of the
apparatus is not exceeded during service.
• Make sure that the personnel are provided with
this manual and all the information required for
operating the apparatus correctly.
• Pay special attention to the information in the
manual highlighted by the following symbol:
—
For your safety!
• Make sure that the installation room (space,
divisions and environment) is suitable for the
electrical apparatus.
• Make sure that all the installation, putting into
service and maintenance operations are carried
out by skilled personnel with in-depth knowledge
of the equipment.
• Check that all the installation, service and
maintenance operations comply with the
regulations and laws in force so as to ensure that
the installations are constructed in accordance
with the rules of good workmanship and safety in
the work place.
• Strictly comply with the instructions in this
manual.
Responsible behavior safeguards your own
and others’ safety!
Please contact the ABB Assistance Service for any
further requirements.
Contents
For your safety! 1
I. Foreword 2
II. Environmental protection program 2
1. Packing and transport 3
2. Checking on receipt 4
3. Storage 5
4. Handling 6
5. Description 7
6. Instructions for circuit-breaker switching 23
7. Installation 26
8. Putting into service 30
9. Maintenance 32
10. Application of the X-ray emission Standards 36
11. Spare parts and accessories 37
12. Circuit diagrams 38
13. Overall dimensions 39
14. Quality of the products and environmental
protection 43

Summary

For your safety!

I. Foreword

II. Environmental protection program

1. Packing and transport

2. Checking on receipt

3. Storage

4. Handling

5. Description

5.1. General information

Overview of VD4G vacuum circuit-breakers for indoor installation.

5.2. Regulatory framework

VD4G circuit-breakers conform to IEC/IEEE 62271-37-013 standard.

5.3. EL operating mechanism

Details of the EL type spring operating mechanism used in VD4G breakers.

5.4. Fixed circuit-breakers

Description of the basic fixed circuit-breaker version and its features.

5.4.1. General characteristics of fixed circuit-breakers

Technical specifications and characteristics of 15 kV fixed circuit-breakers.

5.4.2. Standard fittings for fixed circuit-breakers

Details standard equipment and features of fixed circuit-breakers.

5.5. Withdrawable circuit-breakers

Information on withdrawable circuit-breakers for UniGear ZS1 switchgear.

5.5.1. Types of withdrawable circuit-breakers available

General characteristics of withdrawable circuit-breakers for UniGear ZS1.

5.5.2. Types of withdrawable circuit-breakers available for UniGear ZS1 switchgear

Specific types and models of withdrawable circuit-breakers for UniGear ZS1.

5.6. Characteristics of the electrical accessories

Details on electrical accessories like shunt opening release (-MBO1).

6. Instructions for circuit-breaker operation

6.1. Safety indications

Safety precautions for operating VD4G circuit-breakers.

6.2. Operating and signaling components

Overview of operating and signaling components of VD4G circuit-breakers.

6.3. Circuit-breaker closing and opening operations

Detailed steps for closing and opening operations of the circuit-breaker.

7. Installation

7.1. General information

General importance of correct installation and safety practices.

7.2. Installation and operating conditions

Regulations and conditions for installation and operation.

7.2.1. Normal conditions

Ambient temperature, humidity, and altitude for normal conditions.

7.2.2. Special conditions

Considerations for installations over 1000m and special climate zones.

7.3. Preliminary operations

Preparatory steps before installation, like cleaning parts.

7.4. Installation of fixed circuit-breakers

Guidance for installing fixed circuit-breakers.

7.4.1. Assembly of circuit-breakers on trucks provided by third parties

Specific instructions for mounting on non-ABB trucks.

7.5. Installation of withdrawable circuit-breakers

Instructions for installing withdrawable circuit-breakers in switchgear.

7.5.1. Circuit-breakers with motor-operated withdrawable trucks

Procedures for testing motor-operated withdrawable trucks.

7.6. Power circuit connections of fixed circuit-breakers

Recommendations and procedures for connecting power circuits.

7.6.1. General recommendations

General advice on conductor cross-sections and insulators.

7.6.2. Assembly of connections

Steps for preparing and making connection assemblies.

7.7. Earthing

Procedure for earthing fixed circuit-breakers.

7.8. Connection of auxiliary circuits

Guidelines for connecting auxiliary circuits.

7.8.1. Fixed circuit-breaker

Methods for connecting auxiliary circuits in fixed circuit-breakers.

7.8.2. Withdrawable circuit-breaker

Details on auxiliary circuits for withdrawable circuit-breakers.

8. Putting into service

8.1. General procedures

General procedures and checks before putting the circuit-breaker into service.

9. Maintenance

9.1. General information

Purpose and overview of maintenance for VD4G circuit-breakers.

9.1.1. Operating life

Expected operating life of VD4G circuit-breakers.

9.2. Inspections and functionality tests

Procedures for inspections and functionality tests.

9.2.1. Pole and conductive parts

Inspection of pole and conductive part conditions.

9.2.2. Stored energy spring operating mechanism

Functional testing of the stored energy spring operating mechanism.

9.2.3. Circuit-breaker pole

Further inspection details for the circuit-breaker pole.

9.2.4. Withdrawable assembly (truck and circuit-breaker)

Inspection of withdrawable assembly, contacts, and locks.

9.3. Servicing

Servicing procedures for various components.

9.3.1. Pole and conductive parts

Cleaning and servicing of pole and conductive parts.

9.3.2. Release devices: actuator and transmission system

Maintenance of release devices, actuator, and transmission systems.

9.3.3. Circuit-breaker pole

Maintenance and replacement of circuit-breaker poles and vacuum interrupters.

9.4. Repair

Procedures for replacing parts and carrying out repairs.

10. Application of the X-ray emission Standards

11. Spare parts and accessories

11.1. List of spare parts

A list of available spare parts and accessories for the circuit-breaker.

12. Circuit diagrams

13. Overall dimensions

14. Quality of the products and environmental protection

ABB VD4G-25 Specifications

General

Brand	ABB
Model	VD4G-25
Category	Power Tool
Language	English