KYN61-40.5 armored movable AC metal enclosed switchgear is suitable for three-phase AC 50Hz, 40.5kV single busbar and single busbar segmented power systems. It is mainly used in power plants, substations, industrial and mining enterprises, and high-rise buildings as a means of receiving and distributing electrical energy and controlling, protecting, and monitoring circuits. It meets the requirements of IEC60298, GB3906, DL404 and other standards, and has complete "five prevention" functions.