Jerry X. Wen and Mazana Armstrong analyse catastrophic failures in 550 kV SF6 circuit breakers on shunt reactor-compensated lines at BC Hydro. High compensation levels induce severe DC offset currents, delaying current zero crossings and preventing successful breaker interruption. The study recommends mitigation via optimized Point-on-Wave controller settings, PIR integration, and composite insulator retrofits, contributing to safer, climate-resilient transmission infrastructure.
SF6 Circuit Breaker Failures during Shunt Reactor Compensated Line Switching
Jerry X. Wen and Mazana Armstrong analyse catastrophic failures in 550 kV SF6 circuit breakers on shunt reactor-compensated lines at BC Hydro.
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