ZF□-40.5 Gas Insulated Metal-Enclosed Switchgear is a three-phase AC 50Hz transmission and transformation equipment with a common enclosure and vacuum arc extinguishing, independently developed and manufactured by our company. It has passed the type test at the National High Voltage Apparatus Quality Supervision and Inspection Center (Henan), and meets the requirements for indoor and outdoor use, single and double busbar configurations, as well as single and double busbar sectionalized structures. At the same time, the company possesses experimental capabilities for power frequency withstand voltage, lightning impulse, partial discharge, etc., as well as material composition analysis, mechanical and electrical performance analysis for metallic and non-metallic materials. The group company has multiple specialized laboratories in welding, insulation, polymer thermal engineering, etc., with high experimental and research capabilities.