QJGZ-630/10 10kV Mining Flameproof and intrinsic safety Vacuum Electromagnetic Starter
Functions: This product is used in underground coal mines, where there are mixed explosive gases, such as methane. It is used to control, protect and measure high voltage motors and electric equipment in the power system, which are 3-phase neutral point ungrounded, with rated voltage 10kV, rated frequency 50hz, and rated current up to 630A.
This product is composed of explosion-proof enclosure and functional core, easy for maintenance. Fast-open structure makes it easy to operate. Exclusive protection for underground coal mines , such as double CPUs, digital computers and high-speed AIDS convertible IC, helps to protect the power system from damage of overload, short-circuit, earth leakage, insulation fault, wind power gas, and over or under voltage. Its strong anti-interference ability adapts itself to hazardous environment in coal mines. The drop-down menu of the LCD display gives detailed real-time information about the working environment and the humanized interface is easy for operation and routine inspection. Three types of structure a, b, c are available so as to meet different demands of current-carrying, communication, feedback, or direct control. Circuit breaker can be switched on or off manually or automatically. Remote control signal is intrinsically safe. RS485 interface is compatible with network and remote monitor device