4
Contents Page
4.3 Transport 16
4.4 Delivery 16
4.5 Intermediate storage 16
5 Installation 17
6 Commissioning / Operation 18
6.1 Note on safety at work 18
6.2 Preparatory activities 18
6.3 Operation of the circuit-breaker 18
6.3.1 Charging the spring energy store 18
6.3.2 Closing and opening 18
6.3.3 Run-on block 19
7 Maintenance 20
7.1 General 20
7.1.1 Service life 20
7.2 Inspection and functional testing 20
7.2.1 Switching device in general 20
7.2.2 Stored-energy spring mechanism 20
7.2.3 Breaker pole 21
7.3 Servicing 21
7.3.1 Switching devices in general 21
7.3.2 Stored-energy spring mechanism 21
7.3.3 Breaker pole 22
7.4 Repair 22
7.4.1 Replacement of circuit-breaker
parts and accessories 22
7.4.2 Touch up of surfaces 22
7.5 Spare parts and auxiliary materials 23
7.5.1 Spare parts 23
7.5.2 Auxiliary materials 24
8 Application of the
X-ray regulations 27
9 Comparision of designations to
VDE-DIN 40719 Part 2
and IEC 61346-1/IEC 61346-2 27
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or extracts – to third parties is prohibited. The information supplied is without liability. Subject to alteration.
© ABB AG, 2009
Contents Page
1 Summary 5
1.1 General 5
1.2 Standards and specifications 5
1.2.1 Switchgear manufacture 5
1.2.2 Installation and operation 5
1.3 Operating conditions 5
1.3.1 Normal operating conditions 5
1.3.2 Special operating conditions 5
2 Technical data 6
2.1 Technical data
Circuit-breakers 6
2.2 Technical data
Releases and blocking magnet 7
2.3 Technical data
Motor-operated mechanisms 7
2.4 Permissible number of vacuum
interrupter switching operations in
relation to breaking current 8
3 Structure and function 12
3.1 Structure of the breaker poles 12
3.2 Structure of the breaker operating
mechanism 12
3.2.1 Releases, blocking magnet
and auxiliary switches 12
3.2.2 Mounting of the VD4 on trucks from
other manufacturers 13
3.3 Function 13
3.3.1 Charging of the spring energy store 13
3.3.2 Closing procedure 13
3.3.3 Opening procedure 13
3.3.4 Auto-reclosing sequence 13
3.3.5 Quenching principle of the
vacuum interrupter 13
4 Despatch and storage 16
4.1 Condition on delivery 16
4.2 Packaging 16