JYN2-10、GG-1A（F1）等高压开关柜在3-10千伏，50Hz三相交流供电系统中，作为发电、发电站、水泥生产设备及其他厂矿企业等受电、馈电和大型高压电动机的控制保护之用，并符合“五防”要求，适用户内靠墙安装。
        PK屏适用于大中容量发电厂、变电所中，作为远方控制与保护发电、配电设备之用，也可用于工业企业中生产过程的远方自动控制。

        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.