3BHS135824 ZAB E01Rev. D 17 (of 62)
3.3.8 Converter Earthing Connections
The following items must be checked:
1 PE and safety ground busbars going through the converter
cabinets must be connected with accessories delivered with the
ACS 6000.
2 The safety ground busbar must be connected to the earthing
network of the plant (factory) at only one point: at the busbar inside
the TEU closest to the CBU. All these connections must be
checked, and if necessary, verified by measuring the conductivity
of the connected parts.
3 The routing of the grounding connection must comply with local
regulations. In some countries redundant cable routing is required.
4 Metal shields of all power cables must be connected to the ground
potential (Power Ground) as described above.
5 The cross section of the cable shields must be in accordance with
the Power Cable Specification (document number: 3BHS125090).
6 Control cable shields must be earthed as described above (Safety
Ground).
Check that converter earthing is carried out according to above
checkpoints.
3.4 Motor
Check that the motor installation meets the requirements and fulfills the
local regulations. For details see the motor documentation.
The motor installation includes alignment of mechanics, piping of the
lubrication system and water cooling piping. An alignment protocol
must be available on site.
Note: Couplings between the motor and the driven machine must be
left uncoupled.
The motor frame must be connected to the plant earthing network at
least at one point. For more details refer to the instructions of the motor
manufacturer.
Motor bearing sleeves must be insulated from the motor frame, at least
in one bearing. For more details, see instructions of the motor
manufacturer.
To Next Page
Loading...
