Circuit breakers of live tank vacuum type, rated from 52kV to 363kV, are advanced high-voltage electrical devices. Utilizing vacuum as the arc-extinguishing and insulating medium, they take advantage of the superior insulation and rapid arc-quenching properties of vacuum to instantly interrupt fault currents, preventing arc re-ignition and ensuring grid stability. The live tank design encloses the vacuum interrupters within a metal tank filled with insulating gas, enhancing insulation, mechanical robustness, and environmental adaptability to withstand harsh weather and external impacts. Available in multiple voltage ratings, these breakers are suitable for diverse high-voltage transmission and distribution scenarios, from urban power grids to industrial systems. Equipped with precise operating mechanisms, they offer long mechanical life, swift and accurate operations, minimal maintenance, excellent short-circuit current interruption, and anti-aging performance, making them an ideal choice for reliable and safe high-voltage power transmission.