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Jia-Ying Yu

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Sep 2026

Enhancing the operational reliability of circuit breaker pre-insertion resistors: failure mechanisms, modification measures, and condition assessment

Pre-insertion resistors are critical for suppressing inrush currents and switching overvoltages in Extra-High-Voltage (EHV) and Ultra-High-Voltage (UHV) circuit breakers; however, they continue to exhibit a significant failure rate. This study investigates the operational reliability of pre-insertion resistors by chara...

Ce Zhang, Long-Cheng Dai, Jia-Ying Yu et al. · 0 citations

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