HXGN-12 AC High Voltage Metal Enclosed Ring Network Switchgear
HXGN-12 AC high-voltage metal enclosed ring network switchgear is a new generation of metal enclosed switchgear suitable for distribution automation, which uses sulfur hexafluoride load switch as the main switch and adopts air insulation throughout the cabinet. It is compact and expandable.
The ring main unit is suitable for indoor distribution equipment with three-phase AC 50Hz and rated voltage of 12kV. Widely used in industrial and civilian cable ring networks and power supply terminals. Especially 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.
Our product complies with standards such as GB3906 "3-35kV AC metal enclosed switchgear" and IEC60298 "AC metal enclosed switchgear and control equipment with rated voltage above 1kV and below 50kV".
Main technical parameters
| Rated voltage | 12kV | |
| Rated lightning impulse withstand voltage | Interphase and relative ground |
75kV |
| Between fracture surfaces | 85kV |
|
| One minute power frequency withstand voltage | Interphase and relative ground | 42kV |
| Between fracture surfaces | 48kV | |
| Rated current | Main busbar |
630A |
| Branch busbar |
630A | |
| Rated short-time withstand current | Main circuit | 20*kA |
| Grounding circuit | 20*kA | |
| Rated peak withstand current | 63**kA |
|
| Transfer current | 1700A | |
| Protection level | IP3X | |
| *The parameters of the ring main unit assembled by ABBSFG are 25kA/2S | ||
| **The parameters of the ring main unit assembled by ABB SFG are 63kA | ||
