To Create a Sustainable Future – Digitalize Offshore Energy
Costs and Low Safety At present, most asset management is still undertaken manually on site. Flynn explains, “Currently the monitoring of cables, for example, focuses on internal ‘health’ parameters, mostly electrical - an effect called partial discharge (PD) that occurs when the dielectric material begins to degrade. “The data on cable failure over fifty years indicates that 70 percent of failures are based on corrosion, abrasion and third party impact. Therefore, the failures work from the outside inwards which are undetectable by current PD monitoring and internal
BIRNS Introduces New Coax Contacts
to BIRNS, RF contacts in the subsea connectivity market are typically unable to withstand any open face pressure resistance whatsoever or offer poor signal performance due to the design demands of controlling electrical impedance and the challenges found affecting characteristic performance of dielectric materials. “The geometry of a typical 50Ω coax contact consists of a center conductor, outer conductor and a dielectric between. The ratio of the distance between the center conductor and outer conductor must be maintained to prevent impedance discontinuity,” said Jeff Hager
![Figure 3. Power-cabling system diagram [photo: TE Connectivity / DEUTSCH connectors]](https://images.marinetechnologynews.com/images/maritime/w200h200padcanvas/figure-powercabling-system-25981.jpg)
Subsea Processing Boosting and Gas Compression
pin/contact; simultaneously, a set of seals and membranes cleans/wipes the male pin and ensures no water is allowed into the mated pair. The internal oil is displaced by the pin contact. Figure 2 shows the basic operation during mating. The design of a wet-mate connector involves pressure-balanced dielectric oil. In order to maintain insulation throughout operations and over the design life, the connector is oil filled and pressure balanced. A bladder or piston mechanism equalizes the internal pressure of the connector to the outside water pressure. This allows no differential pressure across the seals
February 2024
