ABB ZX2 - Page 27

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3. INSTALLATION OF THE SWITCHGEAR AT SITE 27

—

Fig. 3.3.2.2 b:

Fastening the panel

to the foundation

frame made of

aluminum profiles

Slot in the foundation frame section

Fastening of the panel to the foundation frame

M 8 T-nut

Main Page

Table of Contents4
Standards, Regulations, Notes, Further Documents6
Despatch and Storage11
Condition on Delivery11
Delivery11
Packaging11
Handling11
Handling by Fork Lift Truck12
Handling by Trolley Jack13
Handling by Crane13
Handling by Hydraulic Lift Trolley15
Intermediate Storage15
Installation of the Switchgear at Site16
Fundamental Notes on Installation Work16
General Site Requirements16
Tightening Torques16
General Information on Treatment of Plug-In Connectors with Silicone Insulating Parts16
Handling Sulphur Hexafluoride18
Requirements for the Floor of the Switchgear Room18
Foundation Frames Made of Aluminum Profiles, Type18
Reinforced Foundation Frames, Type21
Special Considerations with a Raised False Floor23
Assembly of the Switchgear24
Preparatory Work24
Checking the SF Pressure in the Gas Compartments24
Greasing the Floor Bars25
Preparing the Panels25
Erection of the Panels25
Closure of Busbar Sockets35
Installation of the Heat Sinks36
Installation of the Top-Mounted Box for the Busbar Metering System with Isolating Device37
Installation of the Plenums and41
Handling of Voltage Transformers41
Transformers (Metering 1)42
Installation of Voltage Transformers (Metering 1)44
Installation of Voltage Transformers (Metering 2)46
Dismantling of Voltage Transformers (Metering 2)51
Installation of Voltage Transformers (Metering 3)52
Wiring of Voltage Transformers55
Installation of Damping Resistors60
Connecting the Main Groundingbar62
Connection of Cabling and Wiring62
Control Cables and Wiring62
High Voltage Cables62
Fitting Surge Arresters63
Fitting Blanking Plugs64
Fitting Insulating Covers for Unused Outer Cones in Double Panels64
Concluding Installation Work64
Commissioning65
Conditions for Commissioning of the Switchgear65
Energizing the System66
Operation67
General Notes67
Line Side Grounding and Grounding of System Sections68
Line Side Grounding of Panels in Single Busbar Systems69
Line Side Grounding of Panels in Double Busbar Systems69
Grounding the Busbar70
Busbar Grounding of Double Busbar Systems with Bus Tie70
Grounding the Busbar Via72
Grounding and Short-Circuiting72
Device72
Non-Interrupting Bus Transfer74
Electrical Operation76
Emergency Manual Operation77
Emergency Manual Operation of the Circuit-Breaker77
Emergency Manual Operation of the Three-Position Disconnect and the Disconnect79
View Ports82
Switch Position Grounding Switch CLOSED83
Switch Position Open83
Switch Position Disconnect Switch CLOSED84
Gas Monitoring with Density Sensors85
Operation of the Isolating Device for Voltage Transformers85
Operation of the Isolating Device for Voltage Transformers in Metering Panels86
Operation of the Isolating Device for Voltage Transformers in Panels with Outer Cones87
Operation of the Isolating Device for Integrated Metering89
Test Procedures91
Testing for the Off-Circuit Condition91
LRM System91
KVDS, CAVIN and Wega Systems91
Testing for the In-Phase Condition92
High Voltage Tests92
Cable Tests with DC Voltage92
Voltage Test of the Main Circuit93
Secondary Protection Testing95
Protection Testing by Primary Current Injection96
Partial Discharge Test97
Service98
Inspection and Maintenance of the98
Inspection and Servicing of Individual Components98
Checking the Dimensional Accuracy of the Control Wire Settings98
Outlet Filter98
Actions at the End of the Service Life99
List of Tools100
Working Materials, Auxiliary Materials and Accessories101
Working Materials101
Auxiliary Materials101
Accessories102
Technical Data103
Disclaimer107

ABB ZX2 - Page 27

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