Neptune 5000
© Copyright Datem Limited 2014
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The electrical cables connected to the Electronics Pod should be visually
inspected to ensure there are no chafes or cut in the insulation. The
connectors on both ends of the cables should be tightly fitted with no face gap,
and the lock-rings should be finger-tight. Any damaged cables or lock-rings
should be
Any signs of impact damage identified on the pod during visual inspection
should be investigated further, to ensure it has not compromised the integrity
of the pressure vessel. Any serious damage can result in the ingress of water,
and sub-sequential catastrophic failure.
Inverter Pod Assembly
Description
The Inverter Pod is manufactured from low carbon grade 316 stainless steel
and is dry sealed at atmospheric pressure. There are three Subconn
connectors on the top cap of the pod for interconnection to the system.
The mains power comes straight from the power terminal block in the
Transformer Pod, and the RS485 control comes from the Micro Controller PCB
in the Electronics Pod via the Subsea Connector PCB. A third cable connects
the output from the Inverter Pod to the Motor Assembly. This cable has a
screen braid to minimise electronic interference on the system data.
The Inverter Pod contains a specially adapted industrial drive unit, capable of
operating a three-phase motor at variable speeds, from a single-phase supply.
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