POWER CABLE

The present invention relates to a power cable, particularly, a super high-voltage underground or submarine cable for long-distance direct-current transmission. Specifically, the present invention relates to a power cable in which an insulation layer itself has high dielectric strength, an electric...

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Main Authors KO, Kyoung-Ro, LEE, Joon-Keun, GWAG, Jae-Cheol, KIM, Weon-Bae, KIM, Tae-Hyun, CHA, Kum-Hwan, KIM, Ji-Sung
Format Patent
LanguageEnglish
French
Korean
Published 23.08.2018
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Summary:The present invention relates to a power cable, particularly, a super high-voltage underground or submarine cable for long-distance direct-current transmission. Specifically, the present invention relates to a power cable in which an insulation layer itself has high dielectric strength, an electric field applied to the insulation layer is effectively reduced, and, particularly under a low-temperature condition, a void is restrained from occurring in the insulation layer and semiconducting layers respectively arranged on the upper and the lower part of the insulation layer, thereby effectively restraining partial discharge, dielectric breakdown, etc. due to an electric field concentrated on the void. La présente invention concerne un câble d'alimentation, en particulier un câble sous-marin ou souterrain à très haute tension pour une transmission de courant continu de longue distance. En particulier, la présente invention concerne un câble d'alimentation dans lequel une couche d'isolation présente elle-même une résistance diélectrique élevée, un champ électrique appliqué à la couche d'isolation est efficacement réduit, et, en particulier, dans des conditions de basse température, il est possible d'empêcher qu'un vide ne se produise dans la couche d'isolation et des couches semi-conductrices respectivement disposées sur la partie supérieure et la partie inférieure de la couche d'isolation, ce qui permet de limiter efficacement la décharge partielle, la rupture diélectrique, etc. en raison d'un champ électrique concentré sur le vide. 본 발명은 전력 케이블, 특히 장거리 직류송전용 초고압 지중 또는 해저 케이블에 관한 것이다. 구체적으로, 본 발명은 절연층의 자체적인 절연내력이 높고, 상기 절연층에 인가되는 전계가 효과적으로 완화되며, 특히 저온 환경하에서 절연층과 이의 상하부에 각각 배치되는 반도전층 등에 공극(void)이 발생하는 것을 억제하여 상기 공극에 집중된 전계에 의한 부분방전, 절연파괴 등을 효과적으로 억제할 수 있는 전력 케이블에 관한 것이다.
Bibliography:Application Number: WO2017KR03507