ABB VD4 Instruction Manual

4 VD4 Vacuum-circuit-breaker | Instruction manual 534/01
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© 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

ABB VD4 Specifications

General

Type	Vacuum Circuit Breaker
Rated Voltage	Up to 36 kV
Rated Short-Circuit Breaking Current	Up to 63 kA
Frequency	50/60 Hz
Standards	IEC 62271-100
Application	Medium voltage power distribution
Rated Short-Time Withstand Current	Up to 63 kA for 3 seconds
Mechanical Life	Up to 30, 000 operations
Installation	Fixed / Withdrawable
Operating Mechanism	Spring-operated
Rated Current	630 A / 800 A / 1250 A / 1600 A / 2000 A / 2500 A / 3150 A / 4000 A
Electrical Life	Up to 10, 000 operations at rated current
Control Voltage	24 V DC, 48 V DC, 110 V DC, 220 V DC, 110 V AC, 230 V AC