Abb Schweiz Ag

Arne Trandal

Markku Launonen

Helge Kolstad

Paul Midtun

Svein-Ove Urnes

A method for estimating the remaining useful life of a pressure compensator of a subsea arrangement, the method including determining displacement data related to displacements of the pressure compensator during a time period; and estimating the remaining useful life of the pressure compensator in relation to a failure mode of the pressure compensator based on the determined displacement data of the pressure compensator. A system including a subsea arrangement and a control system, a computer program product, and a computer program, are also provided.

System and method for estimating remaining useful life of pressure compensator

The present disclosure relates to a switching device unit for a subsea switchgear. The switching device unit includes a fluid tight switching device housing and switching devices arranged within the switching device housing. A plurality of the switching devices are aligned with each other along two parallel lines.

Mechanical arrangement of a subsea switchgear

A subsea arrangement including a main enclosure having a main enclosure volume; at least one main pressure compensator having a variable compensation volume in fluid communication with the main enclosure volume and configured to compensate volume variations of an internal fluid in the main enclosure volume; and at least one pressure sensor arranged to measure a pressure of the internal fluid. A method for detecting a malfunction of a subsea arrangement including a main enclosure having a main enclosure volume and at least one main pressure compensator is also provided.

Subsea arrangement and method for detecting a malfunction of a subsea arrangement

A subsea circuit breaker for a subsea power distribution system. The subsea circuit breaker includes a circuit breaker enclosure, first and second contacts and an electro-mechanical actuator. The subsea circuit breaker is also furnished with a mechanical transmission mechanism for opening or closing the contacts in response to a mechanical command operation from the outside of the circuit breaker enclosure.

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Ålesund, Norway

Arne Trandal