WANG Jian-xi1, ZHANG Ya-lin1, CHEN Guo-ping1, et al. Development of 550 kV/50 kA Single-break Circuit Breaker[J]. High voltageapparatus, 2004, (5): 379-381.
WANG Jian-xi1, ZHANG Ya-lin1, CHEN Guo-ping1, et al. Development of 550 kV/50 kA Single-break Circuit Breaker[J]. High voltageapparatus, 2004, (5): 379-381.DOI:
Through technical improvement of design of 550 kV/63 kA double-break and 363 kV/50 kA single-break circuit breaker
making use of computer analysis
increasing of the rated pressure of SF6 gas and opening velocity
improving the shape of arcing contact and nozzle
optimizing the structure of interrupter
550 kV/50 kA single-break dead-tank circuit breaker is developed. The test sample of 550 kV/50 kA single-break dead-tank circuit breaker have fulfilled dielectric test
capacitive current breaking test and short-current making and breaking tests
etc. in China National High Voltage Quality Supervision Testing Center and KEMA High Power Laboratory in Holland. All the performance of it has been confirmed successfully.