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Planning the electrical installation 53
5
Planning the electrical
installation
Contents of this chapter
This chapter contains the instructions that you must follow when selecting the generator,
cables, protections, cable routing and way of operation for the converter system.
Note: The installation must always be designed and made according to applicable local
laws and regulations. ABB does not assume any liability whatsoever for any installation
which breaches the local laws and/or other regulations. Furthermore, if the
recommendations given by ABB are not followed, the converter may experience problems
that the warranty does not cover.
Selecting the grid disconnecting device
The converter is equipped with a main circuit breaker as standard. The breaker is
withdrawable: when withdrawn (cranked out), the breaker operates as a main
disconnector for the converter. However, the withdrawn main circuit breaker does not
isolate the grid cable terminals of the converter from the grid. Equip the installation with
another disconnecting device placed in between the power grid and the grid cable
terminals of the converter. For example, the main circuit breaker of the grid transformer
could also be used as the extra disconnecting device if it meets the requirements for a
disconnecting device.
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