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Keywords: transformer
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30891-MS
... apply an 8.7 KV HV motor and thereby eliminate the need for subsea transformer and reducing investment cost benchmarked to similar subsea projects. vigdis topside controller vigdis field artificial lift system vigdis booster station pump module snorre equinor subsea system operation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30661-MS
... up to 3,000 meters and is a key enabler of numerous offshore applications, including subsea electrical power grids; independently retrievable, high-power step-down transformers for long step-out subsea gas compression; cost-effective installation of deepwater pipelines with direct electrical heating...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29550-MS
... switchgear, two medium-voltage subsea power drives with input transformers, and a subsea control module with the subsea protection relay. Each prototype has undergone tests at various assembly stages and are now prepared for launch into shallow waters for a final 3000-hour high-power demonstration. The...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29462-MS
... Trace-Heated Pipe In Pipe (ETH PIP), Subsea Boosting, Subsea Power Distribution and the All Electric Control System. ETH PiP, combined with Subsea Power Distribution (Subsea Switchgear, Subsea Transformers, Subsea VSD, etc.) and the All Electric Control System, can significantly support overall...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29656-MS
...-out distances from a few km to over 600 km can be accommodated. The pressure compensated design effectively removes limits as to the depth of deployment. Pressure compensation is achieved by submerging the drive hardware including the drive transformer in a dielectric liquid which also acts as coolant...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29226-MS
...) control of operations, even when the units included in the control loop are distributed over a large area, and 2) the application of digitalization on the same setup. Digital Twin of a Transformer. A transformer is a different type of equipment than the anti-surge setup described above in that it is a...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29412-MS
... reliability novel hvdc power transmission architecture configuration subsea system requirement offshore technology conference transmission subsea processing cable power conversion unit voltage transformer simulation result hvac system OTC-29412-MS Novel HVDC Power Transmission Architectures...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27588-MS
... upstream oil & gas cable template transformer Gunnar J. , 2016 . Subsea Power Distribution—New Challenges in Subsea Control . PowerPoint Presented at the NFA Subsea , Kristiansand, Norway , 7–8 September . Kleynhans G. , Brenne L. and Kibsgaard S. , 2016...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27649-MS
... learned in a successful development of a power from shore solution. electrical equipment subsea processing power transmission ac subsea power transmission architecture single line diagram voltage subsea system submarine cable upstream oil & gas transformer requirement cable ac...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27684-MS
... requirement reliability module key component offshore technology conference subsea processing transformer statoil joint industry project subsea system qualification upstream oil & gas switchgear subsea switchgear operation medium voltage switchgear factory installation variable speed...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27800-MS
... specifications. The TQP also allowed Chevron to gain the required confidence that the subsea pump system would deliver the expected results at these challenging conditions. Challenges involved significant step-out distances for the 3 MW electrical motors and thus qualification of subsea transformers capable of...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27929-MS
.... At this temperature, the cable's ampacity must be de-rated As a base case, the output voltage from the VFD is set to 7.2 kV. This voltage level is achievable without auxiliary transformers or any other voltage regulation equipment on the VFD output. Based on the above ratings, the envelopes in...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-26980-MS
... breakdown voltage potable water equivalent time insulation transformer subsea factory reliability application electric field power cable subsea processing voltage requirement subsea system Presentation of OTC-26980-MS Presentation of OTC-26980-MS AEIC CS8 . 2007...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27120-MS
... This paper describes the electrical power infrastructure including high voltage and low voltage power transformers, switchboards, distribution units and their associated connection and protection systems required to power a subsea EHTF installation. It discusses the options considered for both...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27192-MS
... drop during the magnetization of the 33kV power interconnector, and testing & energizing strategy such as Management of dissimilar Power Generation, Short circuit level limitation. subsea system operation bend stiffener kv transformer interconnector fpso girassol fpso voltage drop...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-26046-MS
... kilometers step-out distance. It will offer an integrated, reliable and cost-efficient subsea power solution for multiple consumers on the seabed. The development and qualification program is currently in its last stages. Testing of the individual components (subsea transformer, switchgear, variable-speed...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25409-MS
...) Power system (long step out with topside Variable Speed Drive (VSD), transformers, HV swivel, connection system, umbilical / power cables) Control system (process, AMB and anti-surge) in addition to Hot-tap, remotely installed retrofit tee on the Midgard pipeline The total qualification program...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25171-MS
... current topside transformer subsea processing field 2 circuit breaker upstream oil & gas full load subsea field short circuit fault field 1 subsea substation transformer single-pole earth fault power source system architecture subsea system voltage subsea transformer transmission...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25329-MS
... introduce large impedances in the short-circuit current path, especially for the low voltage (LV) modules due to the impedance of their step- down transformers. The protection devices used must be able to positively determine when a fault has occurred and not cause an unwanted trip. LV loads are often...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25320-MS
... wet mateable connectors, subsea transformers, frequency converters, electrical motors, etc. In parallel to the increase in power rating, and consequently voltage and current, the water depths and environments for installation have changed in this time period and have led to increased requirements to...

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