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Energies 2016, 9(6), 418; doi:10.3390/en9060418

Three-Dimensional Finite-Element Analysis of the Short-Time and Peak Withstand Current Tests in Substation Connectors

1
Department of Electrical Engineering, Universitat Politècnica de Catalunya, Terrassa 08222, Spain
2
SBI-Connectors Spain SAU, Sant Esteve Sesrovires 08635, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Paul Stewart
Received: 17 March 2016 / Revised: 5 May 2016 / Accepted: 25 May 2016 / Published: 30 May 2016
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Abstract

Power devices intended for high-voltage systems must be tested according to international standards, which includes the short-time withstand current test and peak withstand current test. However, these tests require very special facilities which consume huge amounts of electrical power. Therefore, mathematical tools to simulate such tests are highly appealing since they allow reproducing the electromagnetic and thermal behavior of the test object in a fast and economical manner. In this paper, a three-dimensional finite element method (3D-FEM) approach to simulate the transient thermal behavior of substation connectors is presented and validated against experimental data. To this end, a multiphysics 3D-FEM method is proposed, which considers both the connector and the reference power conductors. The transient and steady-state temperature profiles of both the conductors and connector provided by the 3D-FEM method prove its suitability and accuracy as compared to experimental data provided by short-circuit tests conducted in two high-current laboratories. The proposed simulation tool, which was proven to be accurate and realistic, may be particularly useful during the design and optimization phases of substation connectors since it allows anticipating the results of mandatory laboratory tests. View Full-Text
Keywords: finite element method; short-time withstand current test; peak withstand current test; simulation; substation; connector finite element method; short-time withstand current test; peak withstand current test; simulation; substation; connector
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Capelli, F.; Riba, J.-R.; Pérez, J. Three-Dimensional Finite-Element Analysis of the Short-Time and Peak Withstand Current Tests in Substation Connectors. Energies 2016, 9, 418.

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