KYN61-40.5 refers to the armored removable type AC metal closed switchgear (hereinafter referred to as the switchgear) is a complete set of indoor power distribution devices with three intersecting flow rates of 50Hz and rated voltage of 40.5KV. As power plants, substations and industrial and mining enterprises to accept and distribute energy, the circuit to control, protection and detection and other functions, can also be used in frequent operation places.