KYN61-40.5 metalclad enclosed switchgear (hereinafter referred to as switchgear) is a new concept of switchgear, it is a three-phase AC 50 Hz, rated voltage 40.5 kV indoor distribution equipment. Switchgear has cable which is in and out of the line, overhead in and out of the line, bus connection, isolation, voltage transformer, lightning arrester and others. Switchgear is mainly used in power plants, substations, industrial and mining enterprises, high-rise buildings as the acceptance and distribution of energy, with circuit control, protection and monitoring functions. In addition to the general electric power site, it can also be used for frequent operation of the place, is an excellent switchgear. This switchgear cabinet features IEC60298, GB3906, DL404 and other standards.