VS1-12kV Series Medium Voltage Vacuum Circuit Breaker
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- Commodity name: VS1-12kV Series Medium Voltage Vacuum Circuit Breaker
VS1-12kV series medium voltage vacuum circuit breaker, the circuit breaker is equipped with intermediate sealing ceramic vacuum arc extinguishing chamber, adopts copper chromium contact material and cup-shaped longitudinal magnetic field contact structure, and its contact has low electrical wear rate, long electrical service life, high contact withstand voltage level, stable medium strength, fast post-arc recovery speed, low interception level and strong breaking ability.
Main technical parameters
Rated voltage: 12kV Rated current: 630~3150A Rated short-time power frequency withstand voltage (1nin): 42kV Rated lightning impulse withstand voltage (peak): 75kV Rated short-circuit breaking current: 20~40kA Rated short-circuit closing current (peak): 50~100kA Rated short-time withstand current: 20~40kA Rated peak withstand current: 50~100kA Rated short-circuit current duration: 4s Power frequency withstand voltage of secondary circuit: 2000V Mechanical life: 10000 times Rated frequency: 50HZ Rated operating sequence: Points -0.3s-combined points -180s-combined points
Key words:
Explosion-proof monitoring
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