12kv High Voltage Vacuum Interrupter VAC308A - Durable and Efficient

Vacuum interrupter for vacuum circuit breakerTD-12/4000-40(VAC308A)  General descriptionThe 12kV series vacuum interrupter is a top-of-the-line product that boasts a ceramic insulating shell, a middle sealing or built-in fixed shielding tube, and copper and chromium alloy contact material. The cup-shaped longitudinal magnetic electrode has been optimized to ensure that the electromagnetic field distribution is uniform and reasonable, which greatly improves the stability of the breaking capacity. Additionally, a special sophisticated process has been implemented to improve the insulation level of the product.This vacuum interrupter is perfect for a wide range of applications. VACEM has introduced two series of 12kV vacuum interrupters (for air insulation, embedded insulation, or those that require external insulation protection) to match with relevant indoor and outdoor vacuum circuit breakers or vacuum distribution devices. It is especially useful as a control and protection device in transmission and distribution electrical power grids with a frequency of 50Hz/60Hz, rated voltage of 12kV, rated current of 630A-4000A, and rated short circuit breaking current of 5kA-40kA. VI is mainly used for VZN63-12kV series MV vacuum circuit breaker. Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.If you're looking for a durable and efficient vacuum interrupter, look no further than the 12kv High Voltage Vacuum Interrupter VAC308A. With its top-of-the-line features and exceptional performance, this product is sure to exceed your expectations. Keywords for this product include Vacuum Interrupter, Hv Vacuum Interrupter, and 12kv Vacuum Interrupter.Main technical parameterSpecification of VIParameter itemUnitDataRated voltagekV12Rated currentA4000Rated frequencyHz50/60Rated short-time power frequency withstand voltage(1 min)kV42Rated lightning impulse withstand voltagekV75Rated short-circuit breaking currentkA31.5/40Rated peak withstand currentkA100Rated short-circuit making currentkA100Rated short-time withstand currentkA40Rated short-circuit durations4Rated single capacitor bank breaking currentA630Rated back to back capacitor bank breaking currentA400Breaking operation of rated short circuit breaking currenttimes30Mechanical lifetimes10000Contact closing force due to bellows and atomsphereN200±50Force required to hold contact open at full strokeN300±50Circuit resistance at lowest rated contact forceμΩ≤15Contact limit erosionmm3Internal gas pressurePa≤1.33×10-3Weight of moving partskg2.7Storage lifeyear20Specifications required for matched switchgearParameter itemUnitDataRated clearance between open contactsmm11±1Average opening speedm/s1.1±0.2Average closing speedm/s0.6±0.2Rated contact pressureN4500±300Contact bouncing duration at closing operationms≤2Closing and opening non-simultaneity of contactsms≤2Maximum rebound during openingmm≤2Rated contact strokemm3.5±0.5Product show International fairs Company show /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1