12kv Outdoor M. V. Vacuum Circuit Breaker with Spring Operating Mechanism

HZW-12/630 Outdoor Dual Power Source Automatic Switching Device General descriptionThe HZW 12/630 type outdoor high voltage double power supply automatic switching device is a cutting-edge product that combines a high voltage vacuum circuit breaker with an intelligent controller. Designed for AC 50Hz, with a rated voltage of 12kV and a rated current of 630A, this device is specifically tailored for dual power supply systems. Its primary function is to automatically switch to an alternate power supply in the event of a power failure or undervoltage, ensuring a seamless and uninterrupted flow of electricity. Equipped with advanced features such as short circuit and transition interlock protection, this device effectively prevents unnecessary power supply shocks when there is a load failure. In the event of a power failure in the normal power supply, the automatic switching device swiftly activates the standby power supply, guaranteeing safety and reliability. Additionally, it offers the flexibility to switch between two power sources based on the specific requirements of the load. This device is particularly well-suited for critical locations where failure is not an option, as it ensures a continuous power supply for essential electric control systems. As a new generation product, it boasts exceptional performance and reliability, making it an ideal choice for various applications. Main technical parameter ItemUnitDataRated voltagekV13,12,10,6Rated insulation level1min P.F. withstand voltagekVdry, isolating fracture 42/48,  wet,34Lightning impulse withstand voltage(peak)kV75/78 isolating fractureRated frequencyHz50/60Rated current A630,1000,1250Rated short-circuit breaking currentkA12.5,16,20,25Rated operating sequence O-0.3s-C0-180s-CORated short-circuit breaking current breaking timesTimes30Rated short-circuit making currentkA31.5,40,50,53Rated peak withstand currentkA31.5,40,50,53Rated short time withstand currentkA12.5,16,20,25Rated short-circuit durations5 (spring) ,4 (permanent-magnet)Opening timeThe highest operating voltagems30-80Rated operating voltagems30-80The lowest operating voltagems40-100Closing timems40-100Full-breaking timems≤100Mechanical life timeTimes10000 (spring),30000 (permanent-magnet)Closing powerJ≤8Rated input efficiency of energy-stored motorW≤70Energy-stored time under rated voltagems≤40Rated operating voltage and rated voltage of auxiliary circuit VDC,AC220Over-current release Rated currentA5Release current accurancy%±10N.W.kg254 (spring), 235 (permanent-magnet)For more switchgear parts, pls refer to insulation parts: https://china-vacem.en.made-in-china.com/product-group/BbRAnYUjsLrW/Insulation-Accessories-catalog-1.html, or copper tulip contact: https://china-vacem.en.made-in-china.com/product-group/nbUGDIpPuLYM/Tulip-contact-series-1.html  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