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This article mainly introduces the use of high-voltage ring cabinets in the computer network, the article is very detailed, has a certain reference value, interested friends must read it!

The function of the high voltage ring network cabinet is to contact the ring network line, so that the user can obtain the power supply from two directions and improve the power supply reliability of the line; it has the advantages of simple structure, small size and low price. It can improve power supply parameters and performance as well as power supply safety, so it is widely used in power distribution stations in load centers such as urban residential areas, high-rise buildings, factories and enterprises.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

High-voltage ring network cabinet is to improve the reliability of power supply, so that users can obtain power from two directions, usually connect the power supply network into a ring. This mode of power supply is referred to as ring network power supply. In AC 10KV power distribution systems such as ports and high-rise buildings, due to the lack of load capacity, the high-voltage circuit is usually controlled by load switches or vacuum contactors and protected by high-voltage fuses.

The system usually uses ring network power supply, and the high voltage switchgear used is generally called ring network cabinet. In addition to supplying power to the distribution station, the high voltage bus of the ring network cabinet also passes through the crossing current of the ring power supply network (that is, the current supplied to the adjacent distribution station through the bus bar of the distribution station). Therefore, the high voltage bus section of the ring network cabinet should be selected according to the sum of the load current of the distribution station and the ring network crossing current.

There are many kinds of ring cabinets, such as HK-10, MKH-10, 8DH-10, XGN-15 and SM6 series.

The ring network cabinet is a group of electrical equipment in which the high voltage switchgear is installed in the steel plate metal cabinet or made into an interval ring network power supply unit. its core part adopts load switch and fuse. It has the advantages of simple structure, small size, low price, improving power supply parameters and performance and power supply safety. It is widely used in distribution stations and box-type substations in load centers such as urban residential areas, high-rise buildings, large-scale public buildings, factories and enterprises.

Ring network cabinets are generally divided into air insulation, solid insulation and SF6 insulation, which are used for on-off load current, on-off short-circuit current and transformer no-load current, and the charging current of overhead lines and cable lines at a certain distance, which plays the role of control and protection, and is an important switchgear for ring network power supply and terminal power supply. In the cabinet, the load switches with air insulation are mainly gas production type, compression type and vacuum type, and the load switch with SF6 insulation is SF6 type. Because the SF6 gas is sealed in the shell, the partition fracture formed by it is not visible. The load switch in the ring network cabinet generally requires three stations, that is, cutting off the load, isolating the circuit and feasible grounding. The gas-producing type, compression type and SF6 type load switch are easy to realize three stations, but the vacuum arc extinguishing type can only be turned off and can not be isolated, so the general vacuum load loop network switchgear adds an isolation switch before the load switch to form an isolation fracture.

These are all the contents of the article "what is the use of high-voltage ring cabinets in computer networks?" Thank you for your reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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