XGN15-12(SF6) Unit AC Metal-enclosed Ring Network Switchgear (hereinafter referred to as ring network switchgear) adopts advanced foreign technology and meets the demands of domestic and urban network reconstruction. It is a new generation of high-voltage electrical products developed through independent design and development. All the technical performance meets the standards of IEC 62271-200:2003 and GB 3006.
The main switch, operating mechanism, and other components of the ring network switchgear use original ABB equipment or SF1-12 switchgear, which is assembled in China using imported parts. We can also use original imported ABB equipment: SF1 type SF6 circuit breaker or VD4-S type vacuum circuit breaker. Its operation mode can be divided into two types: manual and electric. The cabinet is processed using numerical control machine tools and connected by rivets. Its protection degree is IP3X. It has a reliable mechanical interlock and an operation function for error prevention.
The product has a small volume, light weight, beautiful appearance, easy operation, long life, high parameters, no pollution, and requires minimal maintenance, making it an extremely remarkable product.
XGN15-12(SF6) Unit AC Metal-enclosed Ring Network Switchgear is used in the power system of AC 50Hz 12kV to receive and distribute power. The main switch in the cabinet is an SF6 switch.
Main Technical Parameters
| Item | Unit | Data |
| Rated voltage | KV | 12 |
| Rated frequency | HZ | 50 |
| Rated currentofmain bus/Maximum rated current offuse | A | 630/125 |
| Rated short-time withstand current ofmain circuit and ground circuit | KA/S | 20/3 |
| Rated peak withstand currentofmain loop and ground loop | KA/S | 50 |
| Rated short-circuit closing current ofmain circuit and ground circuit | KA/S | 50 |
| Number of full capacity breaks ofload switch | KA/S | 100 |
| Fuse breakingcurrent | TIME | 31.5/40 |
| Rated closed-loop breaking current | KA/S | 630 |
| Rated transfer current | A | 1600 |
| Mechanical life | A | 2000 |
| 1min power frequency withstand voltage (peak) phase to phase, ground/isolation fracture | TIME | 42/48 |
| Lightningimpulse withstand voltage (peak) phase to ground/isolation fracture | KV | 75/85 |
| Secondary circuit lmin power frequency voltage | KV | 2 |
| Class of protection | KV | IP3X |
