GSG2-12 series solid insulation ring network switchgear is a fully insulated, fully sealed, and maintenance free solid insulation vacuum switchgear.
The ring network cabinet has the characteristics of simple structure, flexible operation, reliable interlocking, and convenient installation, and is suitable for 50Hz, 12 kV power systems. It is widely used in industrial and civil cable ring networks and distribution network terminal projects, as a means of receiving and distributing electricity, especially suitable for urban residential distribution, industrial and mining enterprises Used in airports, subways, wind power generation, tunnels, and other places.
Suitable for use in areas with harsh environments such as high altitude, high temperature, humid heat, severe pollution, etc.ring main unit
Standards: IEC62271-1-200 IEC62071-2000-2003
Classified by functional units in the system: incoming cabinet, outgoing cabinet, buscouple cabinet, metering cabinet, PT cabinet, lifting cabinet, etc., represented by wiring scheme number. According to the type of main switch components, it is
divided into: load switch cabinet, load switch fuse combination electrical cabinet, circuit breaker cabinet, and isolation switch cabinet, etc., represented by F (fuse combination electrical appliance), V (circuit breaker), C (load switch), etc
1. Ambient Temperature: No more than +45℃, No less than -45°℃ . Average temperature no more than +35℃ within 24 hours.
2. Altitude: No more than 3000m.
3. Relative Humidity: the average daily value is no more than 95%, the average monthly value is no more than 90%.
4. Earthquake Intensity: No more than 8 degrees.
5. Vapor Pressure: the average daily value is no more than 2.2kPa,and the average monthly value is no more than 1.8kPa.
6. Installation locations without fire, explosion danger, serious pollution, chemical corrosion and violent vibration.
| Item | Unit | C Module | F Module | V Module | |
| Load switch | Load switch with fuse | Vacuum switch | Disconnector/ Earthing Switch | ||
| Rated voltage | kV | 12 | 12 | 12 | 12 |
| Rated frequency1min | Hz | 50/60 | 50/60 | 50/60 | 50/60 |
| Power frequency withstand voltage in 1 min | kV | 42/48 | 42/48 | 42/48 | 42/48 |
| Lightning impulse withstand voltage(Peak) | kV | 75/85 | 75/85 | 75/85 | 75/85 |
| Rated current | A | 630 | note1） | 630 | / |
| Rated closed loop breaking current | A | 630 | / | / | / |
| Rated cable charging breaking current | A | 10 | / | / | / |
| Rated short circuit making current | A | 50 | 80 | 50 | 50 |
| Rated peak withstand current | kA | 50 | / | 50 | / |
| Rated short time withstand current | kA/3S | 20 | / | 20 | / |
| Rated short circuit breaking current | kA | / | 31.5 | 20 | / |
| Rated transfer current | A | / | 1700 | / | / |
| Max. rated current of fuse | A | / | 125 | / | / |
| Loop resistance | μΩ | ≤200 | ≤500 | / | / |
| Mechanical life | times | 5000 | 3000 | 5000 | 2000 |
Note:1) Depends on the rated current of the fuse
1. GSG2-12 switchgear mainly has three functional units, namely V unit (circuit breaker unit), C unit (load switch unit), F unit (combined electrical unit), when the system requires multiple units to be configured , can be arbitrarily expanded on the left and right sides, and can be arranged arbitrarily according to different design schemes toachieve different
configuration requirements.
2. Each unit is structurally divided into three parts: instrument room,operating mechanism and primary circuit. The
instrument room can be equipped with microcomputer protection (intelligent controller) and other meters. The operating mechanism is a special spring operation mechanism,which can also be equipped with additional Electric operating
mechanism;the primary circuit adopts APG automatic gel technology, and the bus bar, isolating switch and arc
extinguishing chamber are completely sealed in epoxy resin, and there are special joints connected to the bus bar.
3. GSG2-12 solid insulation switchgear has the advantages of compact structure, full insulation, long life, maintenance-free, small space occupation, safety and reliability, and is not affected by the working environment. It is widely used in industrial and civil ring network andterminal power supply .
Professional solid insulated ring main unit and manufacturer
