A New Measurement Method of Contact Conditions in a Vacuum Circuit Breaker With the Field Emission Current During the Closing Operation

Geng, Yun; Dong, Jinlong; Yao, Xiaofei; Ding, Jiangang; Wang, Chuanchuan; Geng, Yingsan

doi:10.1109/tim.2022.3193710

Cited by 5 publications

(1 citation statement)

References 31 publications

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“…Thanks to the low arc energy, contact wear in the vacuum circuit breaker is observed at a minimum level. The performance of vacuum circuit breakers in interrupting and protecting an electrical power system largely depends on the conditions of the contact surface between the contacts [6,7]. Considering that the scope of national and international legislation to limit the use of SF6 due to its global warming potential is expanding daily, vacuum circuit breakers are becoming an essential alternative in medium voltage distribution networks.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Three-Phase Electrical Endurance Test Results of Vacuum Circuit Breaker

Ceyhuni,

Uc,

Kilic

et al. 2023

EJRnD

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Instead of medium voltage breakers that use SF6 gas, which has a global warming potential of 23,500 times more than CO2 in a 100-year equivalent, the modeling and production of vacuum medium voltage breakers that can operate at different rated currents without any environmental damage is gaining importance. The issue of restricting the use of SF6 gas through international agreements since the 1990s is becoming an obligation rather than a recommendation every day. This situation makes it necessary to develop products using SF6 alternative insulating media in power system equipment for national and international markets. In this study, the electrical endurance tests for class 2 vacuum circuit-breakers for auto-reclosing are investigated. 10, 30, 60, and 100% rated short-circuit breaking currents are applied with different operating sequences.

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Section: Introductionmentioning

confidence: 99%