ZW58-12 Vacuum Circuit Breaker

ZW58-12/T630-20 type outdoor post-mounted high-voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is a kind of outdoor three-phase high-voltage AC switchgear with rated voltage of 10KV and rated frequency of 50Hz mainly used for breaking current, closing load current, overload current and short-circuit current in distribution network, which is applicable to the protection and control over the operation of substation, mines & other enterprises, and urban & rural power network, especially applicable to location with frequent operation requirement and automatization distribution of urban & rural power network.It uses the latest insulation solid closure technology in the world and has excellent ability to stand outdoor environment conditions. It is widely used by completely remove the incompatibility between miniaturization of vacuum interrupter and insulation requirement. Moreover, it has many advantages such as small size, light weight, beautiful appearance, free of maintenance and intelligent distribution.II. Model and Description-SDS,D-SDOperation Mechanism S: by hand, D by motor-20KA-20 Rated Short-Circuit Breaking Current (KA)630A630 Rated Current (A)TT Spring Operation MechanismGG Optional Disconnector-12KV-12 Rated Voltage (KV)5858 Design ProgramWW OutdoorZZ VacuumIII. Reference Standard3.1 GB1984-20033.1 GB1984-2003 High-Voltage AC Circuit Breaker3.2 GB/T11022-19993.2 GB/T11022-1999 Common Specifications for High-Voltage Switch Gear and Control Gear Standards3.3 GB1985-20043.3 GB1985-2004 AC High-Voltage Disconnectors and Earthing SwitchesIV. Service Conditions4.11000mm;4.1 Altitude: ≤1000mm4.2-40 +40254.2 Ambient Temperature: -40 +40; Daily Humidity Difference: Daily Change: 254.384.3 Seismic Intensity: ≤8 degree4.435m/s4.4 Wind Speed: ≤35m/s;4.5.4.5 No inflammable, explosive hazard, chemical corrosive and intensive vibration location in installation site.Rated voltagekV:12;15Rated currentA630Power frequency resisting voltage(kV)42Lighting impulse resisting voltage(kV)75Rated short-circuit breaking current(Value of the current in amperes)(kA)20;25Rated short-circuit controlling current(Peak)50;63Rated machine stabing current(Maximum)(kA)50;634S heat-stabling current(Maximum)(kA)20;25Times of rated short-circuit breaking current 30Mechanical life(times) 10000Automatic striking and grinding thickness(mm)2Current seperated and rated(A)5Gross weight(kg)40-50 Rated voltagekV:12;15Rated currentA630Power frequency resisting voltage(kV)42Lighting impulse resisting voltage(kV)75Rated short-circuit breaking current(Value of the current in amperes)(kA)20;25Rated short-circuit controlling current(Peak)50;63Rated machine stabing current(Maximum)(kA)50;634S heat-stabling current(Maximum)(kA)20;25Times of rated short-circuit breaking current 30Mechanical life(times) 10000Automatic striking and grinding thickness(mm)2Current seperated and rated(A)5Gross weight(kg)40-50