JYN2-10、GG-1A（F1）等高壓開關櫃在3-10千伏，50Hz三相交流供電系統中，作為發電、發電站、水泥生產設備及其他廠礦企業等受電、饋電和大型高壓電動機的控制保護之用，並符合“五防”要求，適用戶內靠墻安裝。
        PK屏適用於大中容量發電廠、變電所中，作為遠方控制與保護發電、配電設備之用，也可用於工業企業中生產過程的遠方自動控制。

        JYN2-10, GG-1A (F1) in the 3-10 kV High Voltage Switchgear. Three-phase AC 50Hz power supply system, power generation, power plants, cement factories, mines and other enterprises and other electric equipment. Fed large high voltage motor control and protection, and is in line with the “five defenses,” coincided with the installation of users within the wall. PK screen in the capacity of large and medium-sized power plants, substations, as a remote control and the protection of generation, distribution equipment used can also be used for remote control of industrial enterprises in the production process.