ABB VD4 Series Instruction Manual - page 4
4 VD4 Vacuum-circuit-breaker | Instruction manual 534/01
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 AG 2009
Contents
Page
1 Summary
6
1.1 General
6
1.2 Standards and specifications
6
1.2.1 Switchgear manufacture
6
1.2.2 Installation and operation
6
1.3 Operating conditions
6
1.3.1 Normal operating conditions
6
1.3.2 Special operating conditions
6
2 Technical data
7
Circuit-breakers for fixed installation
2.1 Technical data and weight
7
2.2 Technical data Releases and blocking magnet
8
2.3 Technical data
Charging motor for stored-energy spring mechanisms
8
2.4 Permissible number of vacuum interrupter switching operations
10
2.5 Dimensional drawings Circuit-breakers for fixed installation
11
2.6 Circuit-breaker wiring diagram
12
3 Technical data
13
Circuit-breakers on withdrawable part
3.1 Technical data and weight
13
3.2 Dimensional drawings
14
3.3 Wiring diagrams for C.B. on withdrawable part
17
4 Structure and function
21
4.1 Basic structure of the C.B. on withdrawable part
21
4.2 Structure on the breaker poles
21
4.3 Structure of the breaker operating mechanism
21
4.3.1 Releases, blocking magnet and auxiliary switches
21
4.3.2 Mounting of the VD4 on trucks from other manufacturers
22
4.4 Function
22
4.4.1 Charging of the spring energy storage mechanism
22
4.4.2 Closing procedure
22
4.4.3 Opening procedure
22
4.4.4 Auto-reclosing sequence
22
4.4.5 Quenching principle of the vacuum interrupter
23
4.5 Interlocks/protection against maloperation
23
5 Despatch and storage
26
5.1 Condition on delivery
26
5.2 Packaging
26
5.3 Transport
26
5.4 Delivery
26
5.5 Intermediate storage
26
6 Installation and mounting of the breaker
27