ABB ZS1 Instruction Manual page 3

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