ZW32-12 Outdoor On-Pole High Voltage Vacuum Vircui

General ZW32-12 outdoor column high voltage vacuum circuit breaker is a 12kV rated voltage, 50Hz, three-phase AC outdoor power distribution equipment, mainly used in power distribution network to break and make the load current, over-current and short-circuit current. It is suitable for outdoor midium- or small-sized power distribution station or branch line in 10kV system of downton power supply net and countryside power supply net for control and protection. Main technical data No.NameUnitData1Rated voltage kV122Rated frequency Hz503Rated current A6304Rated short-circuit breaking current kA205Rated peak withstand current(peak) kA506Rated short time withstand current(4s) kA207Rated short-circuit making current(peak) kA508Rated operating sequence O-0.3s-CO-180s-CO9Mechanical life time100002000(for disconnector)10Breaking times at rated current time1000011Breaking times at rated short-circuit breaking current time30121min power frequency withstand voltage of main circuit (across isolating distance) kV42/48(34 at wet state)13Lightning impulse withstand voltage (peak, across isolating distance) kV75/85