Externally-Gapped Line Arrester Technology: Background, Development & Future Directions

18 Oct 2022
16:50
Munich Conference Room

Externally-Gapped Line Arrester Technology: Background, Development & Future Directions

ZnO technology was introduced in Japan in the late 1970s for substations but adapted quickly to overhead lines with both gapless (NGLA) and gapped (EGLA) types. The latter soon became dominant for technical reasons that made it preferred for overhead line applications. This presentation outlines why EGLA technology is the more effective and also explains why its use is still not fully understood and adopted by the electricity supply industry. The aim is to provide a retrospective, analyze current use of this technology and project into the future to better understand how EGLAs can contribute to power transmission as well as facilitate the energy transition.

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