1、 Definition of High Voltage Ring Main Unit
High voltage ring network cabinet ring network refers to the distribution method being a ring network type distribution, with the power supply main circuit forming a closed ring. Then distribute power one by one from the circular trunk road. This will enable each path in the high-voltage distribution system to obtain power not only from the left main line, but also from the right main line. Even if the power supply is single circuit, for each high-voltage distribution branch, it can receive dual power supply, which can improve the stability of the power supply. This is the high-voltage ring network cabinet.
High voltage ring network cabinets are widely used in industrial and civil cable ring networks and power supply terminals, especially suitable for application in small secondary distribution stations, switching stations, industrial and mining enterprises, urban residential areas, airports, railways, tunnels, high-rise buildings and other power systems. In addition, it is equipped with mechanical interlocking and anti misoperation functions.
2、 The Function of High Voltage Ring Main Unit
High voltage ring network cabinets are often seen in residential areas, shopping malls, commercial buildings, or high-rise buildings. So, what is the purpose of these high voltage ring network cabinets? Now, let's take a look together.
1. The function of high-voltage ring network cabinet is to enable users to obtain power from two directions, improving power supply reliability. Its characteristics are relatively simple structure, compact size, and relatively low price. In addition, it can improve power supply parameters and performance, and the power supply is relatively stable. Based on the above advantages, it is widely used in distribution stations and box substations in urban residential communities, high-rise buildings, factories and enterprises, and other load locations.
2. High voltage ring network cabinets usually connect the power supply network into a ring (i.e. ring network power supply). In AC 10kV distribution systems such as industrial and mining enterprises, residential communities, ports, and high-rise buildings, due to their small load capacity, their high-voltage circuits are generally controlled by load switches or vacuum contactors, and equipped with high-voltage fuse protection.