Scope of application and structural characteristics of high-voltage ring main unit

The high-voltage ring main unit adopts sulfur hexafluoride load switch as the main switch and the whole cabinet adopts air insulation. It is a compact and expandable metal enclosed switchgear suitable for distribution automation and also suitable for box type substations. High voltage ring main unit has the characteristics of simple structure, flexible operation, and reliable interlocking, and can provide satisfactory technical solutions for various application scenarios and user requirements. The adoption of sensing technology and protective relays, along with technical performance and assembly solutions. Can meet the constantly changing demands of the market.

Main purpose and scope of application of high-voltage ring main unit:

The ring main unit is suitable for indoor distribution equipment with three-phase AC 50Hz and rated voltage of 12 (24) KV. Widely used in industrial and civilian cable ring networks and power supply terminals. Suitable for receiving and distributing electrical energy in small secondary distribution stations, switch stations, industrial and mining enterprises, urban residential areas, airports, railways, tunnels, high-rise buildings and other power systems.

Structural characteristics of high-voltage ring main unit:

1) The load switch used is an independent unit filled with sulfur hexafluoride gas as an insulation medium, with long service life, high parameters, no pollution, and minimal maintenance;

2) The shell is made of high-quality steel plate or aluminum zinc coated plate according to the user's needs, which has the advantages of corrosion resistance, oxidation resistance, novel external structure, and beauty;

3) Spring energy storage operation, three-phase automatic tripping, integrated five prevention interlocking and operating mechanism, safe and reliable linkage;

4) The switchgear can easily form a ring network power supply unit and other wiring methods, and can be infinitely extended;

5) Adopting sulfur hexafluoride load switch, the comprehensive performance is safe and reliable, oil-free and non-toxic, and there is no risk of fire or explosion;

6) The cabinet has a simple structure, easy operation, small size, light weight, and beautiful appearance.