Modern life cannot do without circuit equipment. In order to use electricity safely, the existence of distribution boxes and substations is indispensable. However, most people are very unfamiliar with the equipment in the computer room. However, as two essential components, Array cabinet and power distribution cabinets often make it difficult to distinguish between them.

Array cabinet is the topmost cabinet in a row of cabinet equipment. The front end cabinet is usually called the Array cabinet and the rear end cabinet is called the array tail cabinet. Its main function is to provide power for the AC or direct load of this array cabinet, playing a role in power distribution, monitoring, measurement, protection, alarm, and other functions.

Distribution equipment is the final stage equipment in the distribution system, usually composed of automatic control switches, isolation switches, fuses, contactors, relays, meters, indicator lights, buttons, switches and other electromechanical components, semiconductor components and cabinets, with functions such as protection, monitoring, and control.

The main differences between array cabinet and power distribution cabinets are as follows:

1. Different current monitoring. The column head cabinet can monitor the total current, the current of each branch of three-phase electricity, and the current output from each branch to the cabinet. The distribution cabinet can only monitor the total current.

2. Different circuit structures. The column head cabinet forms a two-layer circuit result in the computer room, forming a tree shaped electricity monitoring management, adjusting the operation mode, and optimizing the electricity structure. The circuit in the distribution cabinet room has only one layer structure, and the current distribution display is not clear.

3. Different circuit maintainability. The column head cabinet facilitates circuit maintenance and saves valuable power outage time; The distribution cabinet needs to disconnect all circuits for maintenance, with low fault tolerance.

4. Different monitoring capabilities for electrical energy. Install electric energy modules in the column head cabinet to calculate electricity consumption, achieve reasonable and energy-saving electricity consumption, and reduce land costs; The distribution cabinet does not have an energy consumption display and cannot provide data on the electricity consumption of the computer room.

5. Different displays. The LCD screen of the column head cabinet displays accurate data; The distribution cabinet is a traditional mechanical type with instrument display, which is not very accurate.

6. Different installations. The column head cabinet is a standard rack mounted installation, with the appearance consistent with the cabinet; The distribution cabinet is traditionally installed vertically.


7. Different device integrations. The integration degree of the column head cabinet is high, and the volume is reduced under the same capacity; The distribution cabinet has a large volume and occupies space in the computer room.


8. Different connection methods. Hot swappable cabinet style connection, foolproof installation operation; The hard connection of the distribution cabinet section requires professional electricians to operate.

Both array cabinet and the power distribution cabinet are indispensable parts of the computer room. In daily use, it is important to pay more attention to correct installation operations and methods, and use these devices safely.