Redesign process of a 765kVRMS AC substation connector by means of 3D-FEM simulations

Hernandez-Guiteras, Joan; Riba, Jordi-Roger; Romeral, L.

doi:10.1016/j.simpat.2013.12.001

Cited by 18 publications

(19 citation statements)

References 16 publications

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“…FEM models can also deal with more complex geometries that those analyzed in this paper and provide very accurate solutions, even when analyzing problems with uneven current distributions due to eddy currents effects [19,20]. In addition, FEM models of conductors can deal with almost any crosssection shape.…”

Section: The Fem Modelmentioning

confidence: 97%

Analysis of formulas to calculate the AC resistance of different conductors’ configurations

Riba

2015

Electric Power Systems Research

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Abstract-Skin and proximity effects in single-or multi-conductor systems can notoriously affect the AC resistance in conductors intended for electrical power transmission and distribution systems and for electronic devices. This increase of the AC resistance raises power loss and limits the conductors' currentcarrying capacity, being an important design parameter. There are some internationally recognized exact and approximated formulas to calculate the AC resistance of conductors, whose accuracy and applicability is evaluated in this paper. However, since these formulas can be applied under a wide range of configurations and operating conditions, it is necessary to evaluate the applicability of these models. This is done by comparing the results that they provide with experimental data and finite element method (FEM) simulation results. The results provided show that FEM results are very accurate and more general than those provided by the formulas, since FEM models can be applied to a wide range of conductors' configurations and electrical frequencies.

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Section: The Fem Modelmentioning

confidence: 97%

Analysis of formulas to calculate the AC resistance of different conductors’ configurations

Riba

2015

Electric Power Systems Research

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“…The electro-magnetic field distribution is the most influencing factor in the failure of insulation systems, and these failures may be boosted by the presence of pollutants such as water or moisture [39].…”

Section: B Electrical Propertiesmentioning

confidence: 99%

“…Although electrical design affects all connectors, the ones that need specific studies are mostly used for power transmission, at high voltage (>1 kV), or extra-high voltage (>275 kV), because at this voltage level, if the strength of the electrical field exceeds a certain value, the effect called the corona effect occurs [39].…”

Section: B Electrical Propertiesmentioning

confidence: 99%

“…This effect produces audible noise, radio interference, power losses and also generates harmful chemical compounds such as ozone and nitrogen oxides [39]. Therefore, the corona effect is a focus of concern, and several studies are being conducted to investigate this phenomenon.…”

Section: B Electrical Propertiesmentioning

confidence: 99%

“…To reduce the strength of the electric field, corona shields are used on electrical connectors. By this way, corona activity including power loss, television, and radio interference and audible noise levels are significantly reduced [11], [39].…”

Section: B Electrical Propertiesmentioning

confidence: 99%

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Review of Electrical Connectors for Underwater Applications

Remouit

Ruiz‐Minguela

Engström

2018

IEEE J. Oceanic Eng.

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Abstract-The history of underwater electrical connectors is relatively new: In 1858, the first transatlantic communication cable was created. Since then, the need for subsea electrical connectors has been growing very fast in the offshore industry. Today numerous companies offer a large choice of underwater connectors and assemblies, and it can be intricate to distinguish the different technologies employed for each of them. However the use, deployment, maintenance, and lifetime of any subsea equipment, from a simple sonar to a wave energy converter, relies on its connectors. Hence the design of an underwater electrical connector is to be carefully looked at, and especially for tailor-made applications that have more specific requirements. To produce a good connector, it is necessary to account for thermal, electrical, and mechanical properties, as well as to determine the best materials that should be used for the application. Finally, connector issues go hand in hand with the deployment and operation of any electrical equipment, and it is of interest to review the different techniques for cable connection, as well as the challenges related to cable layout. Those challenges can be of different nature, but they should all be taken into account for any subsea connection.

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