Part1 Customized Power Distribution Cabinet for LED Display

The LED display is powered by a large number of switching power supplies, and with capacitive loads, when the screen is started, the instantaneous current is extremely large, which is easy to form an impact on the power grid and cause damage to electrical equipment. Therefore, for displays with a power exceeding 20KW, a belt distribution Power distribution box with step-by-step power-on function.

The function of the LED display distribution box is to control the power distribution to distribute the electric energy to each load part, and to perform power-off protection when the circuit is short-circuited, overloaded and leaked. It mainly supplies power to the LED screen. It supports AC380V power input, air switch protection, and supports 220V power output. The chassis adopts a special design to prevent the possibility of leakage, and it is safer to use.

The LED display system generally includes LED large screen, receiving card, sending card, video processor & splicer, control computer, power distribution cabinet and other equipment.

Customers can design customized power distribution cabinets according to the specific use environment of LED displays.

What kinds of power distribution cabinets are commonly used for LED displays?

The power distribution equipment adopts the AC three-phase five-wire system. The LED display power distribution cabinet divides the three phases into three phases with zero voltage for the display. The power distribution equipment can be remotely controlled in the control room to switch the LED display.

So what kinds of power distribution cabinets are commonly used for LED displays? The power distribution cabinets generally used by LED display manufacturers can be divided into the following types:

The power distribution box is an important unit in the LED screen system. The power distribution box mainly supplies power to the LED screen body. The LED display screen is powered by a large number of switching power supplies. With capacitive loads, when the screen body starts up, the instantaneous current is extremely large, which is easy to connect to the power grid. Form an impact and cause damage to electrical equipment. The function of the distribution box is to distribute electrical energy to various load parts, and to perform power-off protection when the circuit is short-circuited, overloaded, or leaked.

The commonly used power distribution boxes in the LED industry generally include PLC electric intelligent power distribution cabinets, multi-function card intelligent power distribution cabinets, microcomputer time-controlled power distribution cabinets, and manual power-on power distribution cabinets. Can be divided into "intelligent" and "non-intelligent" two categories.

1. According to the power-on function, it can be divided into PLC programmable control cabinet (PLC remote power-on intelligent power distribution cabinet), multi-function card intelligent power distribution cabinet, timing power distribution cabinet (microcomputer time-controlled power distribution cabinet), Manual power distribution cabinets, button power distribution cabinets, air box mobile power distribution cabinets, etc.;

2. According to the nature of the distribution cabinet, it can be divided into indoor (indoor) wall-mounted type, indoor (indoor) floor-mounted type, outdoor (outdoor) waterproof wall-mounted type, outdoor (outdoor) waterproof floor-to-ceiling type, etc. ;

3. According to the material of the power distribution cabinet, it can be divided into stainless steel type, cold-rolled steel plate type, iron sheet type, aluminum alloy die-casting type, plastic shell type and other types. The above types are the power distribution cabinets commonly used by LED display customers. Of course, some displays use special power distribution cabinets. Customers can design specific power distribution cabinets according to the specific use environment of LED displays.