High voltage ring network cabinets are often seen in residential quarters, shopping malls, commercial houses or high-rise buildings. Ring network cabinets are a group of high-voltage switchgear, which are installed in steel plate metal cabinets or made into electrical equipment for assembling interval ring network power supply units. Then, what are the functions of these high-voltage ring network cabinets? Now, let's get to know.

Ring main switchgear is a high-voltage and low-voltage complete set of equipment with high-voltage switchgear installed in steel plate metal cabinet or assembled into interval ring main power supply unit. Its main important part adopts load switch and fuse, which has many advantages, such as small volume, simple structure, improving power supply parameters, low price and performance, reliable power supply and so on. It is widely used in power distribution stations and box type substations of load centers such as urban residential quarters, commercial housing high-rise buildings, large public buildings, enterprise factories and so on.

In order to meet the reliability of power supply, users can obtain power from two directions and often connect the power supply network into a ring. Such power supply mode is called ring network power supply for short. In the AC 10kV distribution system of residential quarters, industrial and mining enterprises, commodities, ports, commercial housing buildings and high-rise buildings, because of its small load capacity, the high-voltage circuit is often controlled by load switch or vacuum contactor, and is equipped with high-voltage fuse protection. Such systems often use ring network power supply, and the high-voltage switchgear used is called ring network cabinet. In addition to supplying power in the distribution substation, the high-voltage bus of the ring network cabinet also passes through the through current of the ring power supply network. Therefore, the section of the high-voltage bus of the ring network cabinet shall be selected according to the sum of the load current of the distribution substation and the through current of the ring network, so as to ensure that the high-voltage bus does not exceed the load during operation.

In a word, the high-voltage ring network cabinet is mainly to improve the reliability of production power consumption, so that users can obtain power from two directions. It is usually used in AC 10kV distribution systems such as residential quarters, industrial and mining enterprises, high-rise buildings, factories and ports, and is equipped with high-voltage fuse protection electrical equipment.