The difference and application of strong and weak electric cabinets

When we are doing computer room projects, we often use top cabinets. There are strong current top cabinets and weak current top cabinets. What is the difference between these two cabinets? What’s the use? How to install it?

1. Difference
2. In a general machine room, the strong current column head cabinet is located at one end of the cabinet, and the weak current column head cabinet is located at the other end; for the computer room with fault tolerance requirements, the more common method is that both ends are strong current column head cabinets and weak current column head cabinets Located in the middle of a row of cabinets. The management function of the strong current column cabinet is very strong, and now there are precision column cabinets that strengthen the management function of the strong current column cabinet. It can not only monitor the conventional electrical parameters and switch status, but also detect the zero line current , Dynamic adjustment of three-phase imbalance and other issues.
3. The weak current top cabinet is more inclined to distribution, but after adding the electronic wiring system, the management function of the weak current top cabinet has also been greatly strengthened.
4. Concept and classification
5. There are generally two types of top cabinets: strong current top cabinets and weak current top cabinets. The strong current cabinet is a device for managing and distributing mains power or UPS power, and is often located at the end of a row of cabinets. For the computer room with fault-tolerant requirements, the high-power row head cabinets are usually located at the two ends of a row of cabinets to achieve the purpose of fault tolerance (nn). Weak current column cabinets are mainly used for distribution of cables in network wiring. There are too many weak current cables in the computer room, and it is possible for a small computer room to manage all the network cables through one or two main distribution frames. In medium and large computer rooms, it is unimaginable if they are all concentrated on the main distribution frame, so it is necessary to add 1~2 level cabinets to disperse the cable layout.
6. In a general computer room, the strong current column head cabinet is located at one end of the cabinet, and the weak current column head cabinet is located at the other end; for the computer room with fault tolerance requirements, it is more common to have strong current column top cabinets at both ends and weak current column top cabinets Located in the middle of a row of cabinets. The management function of the strong current column cabinet is very strong, and now there are precision column cabinets that strengthen the management function of the strong current column cabinet. It can not only monitor the conventional electrical parameters and switch status, but also detect the zero line current , Dynamic adjustment of three-phase imbalance and other issues. The weak current top cabinet is more inclined to distribution, but after adding the electronic wiring system, the management function of the weak current top cabinet has also been greatly strengthened.
7. What is the head cabinet

The head cabinet is a device that provides network wiring transmission services or power distribution management for cabinets arranged in rows or divided by functional areas, and is generally located at the end of a row of cabinets.

4. Basic meaning

The head cabinet literally means a cabinet at the end of a row of cabinets. In fact, the head cabinet is just a more vivid definition of equipment management and distribution cabinets. Its placement is often at one end of a row of cabinets, but in fact it can be located at any position in a row of cabinets, or even placed alone. .

5. Installation classification

In medium and large computer rooms, it is unimaginable if they are all concentrated on the main distribution frame, so it is necessary to add 1~2 level cabinets to disperse the cable layout. In a general computer room, the strong current column cabinets are located at one end of the cabinet, and the weak current column cabinets are located at the other end; for computer rooms with fault tolerance requirements, it is more common to have strong current column cabinets at both ends, and weak current column cabinets at one row. middle of the cabinet. The management function of the strong current column cabinet is very strong, and now there are precision column cabinets that strengthen the management function of the strong current column cabinet. It can not only monitor the conventional electrical parameters and switch status, but also detect the zero line current , Dynamic adjustment of three-phase imbalance and other issues. The weak current top cabinet is more inclined to distribution, but after adding the electronic wiring system, the management function of the weak current top cabinet has also been greatly strengthened.

5. What is the difference between the intelligent module PDM and the traditional power distribution cabinet?

First, the traditional power distribution cabinets use pointer instruments or digital display instruments, which can only monitor the parameters of the power distribution cabinet to meet the basic needs. The intelligent power distribution cabinet adopts a highly integrated and reliable computer motherboard, comprehensive Various operating parameters of the monitoring system are displayed comprehensively through HMI, which reduces the space occupation of the power distribution cabinet and improves the volume ratio of the power distribution cabinet.

Second, the traditional power distribution cabinet only has the function of power distribution management, which distributes power to the load cabinet; while the intelligent power distribution cabinet, in addition to power distribution management, also has the functions of operation management and safety management, which effectively improves The reliability of the entire power distribution system reduces risks.

Third, the traditional power distribution cabinet supports fewer circuits and occupies a large overall area; the intelligent power distribution cabinet adopts high-precision and highly integrated modules, which increases the volume of the cabinet, supports more circuits, and reduces the floor space.