ABB ZS1 User Manual

4 ABB Power Distribution
Contents Page
1 Summary 6
1.1 General 6
1.2 Standards and specifications 6
1.3 Operating conditions 6
1.3.1 Normal operating conditions 6
1.3.2 Special operating conditions 6
2 Technical data 7
2.1 Electrical data 7
2.2 Resistance to internal arc faults 7
2.3 Dimensions and weights 8
3 Panel design and equipment 9
3.1 Basic structure and variants 9
3.2 Enclosure and partitioning 9
3.2.1 Ventilation of the panels 9
3.3 Compartments in the panels 10
3.3.1 Busbar compartment 10
3.3.2 Circuit-breaker compartment 10
3.3.3 Withdrawable parts 10
3.3.4 Cable compartment 10
3.3.5 Control cabinet 11
3.4 Interlocks/protection against
maloperation 11
3.4.1 Panel internal interlocking 11
3.4.2 Interlocks between panels 12
3.4.3 Locking devices 12
3.5 VD4 circuit-breaker run on-block 12
4 Despatch and storage 21
4.1 Condition on delivery 21
4.2 Packaging 21
4.3 Transport 21
4.4 Delivery 21
4.5 Intermediate storage 21
5 Erection of the switchgear on site 23
5.1 Site requirements 23
5.2 Foundations 23
5.2.1 Foundation frame on concrete floor 24
5.2.2 Raised false floor 24
5.3 Erection of the panels 24
5.4 Installation of the busbars 25
Contents Page
5.5 Installation of the top mounted boxes 25
5.5.1 Voltage transformer for busbar metering 25
5.5.2 Earthing switch for busbar earthing 26
5.6 Pressure relief ducts 26
5.7 Connection of the cables 26
5.7.1 Power cables 26
5.7.2 Control cables 27
5.8 Earthing of the switchgear 27
5.9 Laying the ring circuits 27
5.10 Final erection work 27
6 Operation of the ZS1 switchgear 44
6.1 Start-up 44
6.1.1 Preparatory work 44
6.1.2 Start-up 44
6.2 Switching operations 45
6.2.1 Withdrawable circuit-breaker part 45
6.2.2 Withdrawable metering parts 46
6.2.3 Circuit-breaker 46
6.2.4 Tee-off earthing switch 48
6.2.5 Busbar earthing switch 48
6.2.6 Switch-disconnector 48
6.2.7 Insulating protection plate 49
6.2.8 Electrical/mechanical
annunciation/monitoring 49
6.2.9 Earthing and short-circuiting with
the earthing cable sets 50
6.3 Test procedures 50
6.3.1 Testing the off-circuit conditon 50
6.3.2 Testing for in-phase condition 51
6.3.3 Current and voltage testings 51
7 Maintenance 58
7.1 General 58
7.2 Inspection 58
7.3 Servicing 59
7.4 Repair 59
7.4.1 Switchgear in general 59
7.4.2 Replacement of complex functional groups 60
7.5 Testing withdrawable parts with
a VD4 type circuit-breaker 61

ABB ZS1 Specifications

General

Brand	ABB
Model	ZS1
Category	Industrial Equipment
Language	English