ABB DCS800, Руководство по установке

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Concentric
shield
High-current single-core cable connection
Motor Cable Connection
Motor cable connection should be performed as indicated in the manual Technical
Guide (3ADW000163).
Cable Tray or Bus Duct
Current de-rating of the cables is required when installing the cables in a cable tray
or bus duct. This de-rating factor must be taken into account as per the local
electrical safety codes.
For some market areas and large power applications, a bus duct may be used to
supply the DC thyristor power converter modules. The metal of the bus duct should
be grounded at both ends of the complete system. The paint should be removed to
allow a good connection to the cabinet frames throughout the whole perimeter of
the bus duct. The bus duct should be electrically continuous throughout its
complete length.
Mechanical Cable Connections
The following sections provide some basic instructions for the routing and
mechanical connection of cables. The mechanical cable connections are basically
the same whether they are for a incoming cabinet or a DC thyristor power converter
module (what changes between the various types are the cabinet dimension and
the location of the terminals for the cables). The cabling direction may also vary
(from top or bottom).
If necessary, the same screw can be used to connect two cable lugs at the busbar
(sometimes not allowed because of local regulations, e.g. in USA). Always use a
torque wrench for tightening the busbar connections.
Location of Cable Connections within the Cabinet
DC thyristor power converter modules series DCS800 are used in DCS800-A
Enclosed Converters. The standard version is equipped with a bottom entry for
power and control cables. Basically all control cable connections are located on the
left side of the cabinet.
Electrical Installation
3ADW000352R0101 DCS800-A Installation Manual e a