Indoor and outdoor LED display power distribution system

LED outdoor display generally uses AC220V current supply, requiring the grid voltage fluctuation less than 10%, and provide a good system ground. For display screens with electrical power exceeding 10 kW, dedicated power distribution cabinets should be provided. According to the need, the power distribution cabinet with remote control function or PLC control function can be selected. The power distribution cabinet with PLC control function is more intelligent, and the LCD controller can be used to remotely operate the outdoor LED display screen and the screen air conditioner, fan and other equipment. The switch can monitor the ambient temperature in the screen and the ambient brightness outside the screen in real time and has corresponding alarm information. In the LED outdoor screen, the general environmental conditions are poor. It is recommended to use the power distribution cabinet with PLC control. In the indoor screen project, the environment is better, and the space is limited. It can be controlled without PLC.

In order to prevent the occurrence of electric leakage fire, a fire leakage switch shall be installed at the main switch of the power supply line. The LCD controller monitoring interface in the power distribution cabinet can display real-time temperature on the display screen. In the automatic state, when the screen body temperature exceeds 65 degrees, the monitor screen will prompt the temperature is too high, and the LCD controller will issue an alarm sound, the system will automatically power off to prevent a fire. According to the actual situation, smoke detectors can be installed in the display screen. When a fire occurs in the screen, the corresponding information will be displayed on the monitoring interface. At the same time, the linkage power distribution system will automatically cut off the power.

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