33KV sf6 GIS switchgear
Ring6 Series SF6 gas insulated mv switchgear (GIS) is suitable for three-phase AC 50Hz, rated voltage 33kV distribution system for split load current, overload current,it acts as a distribution, control, and protection of electrical energy in the power system.
Ring6 33KV sf6 gis switchgear adopts a fully-sealed structure, and all the live parts components are sealed in a stainless steel tank, with a degree of protection of IP67.
Ring6 sf6 gas insulated switchgear can bear humid and salty fog, such as flood, heavy pollution, and other harsh environmental conditions. The GIS is Widely used in industrial parks, streets, airports, residential areas, bustling commercial centers, etc., is the ideal equipment for distribution automation.
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Ring6 sf6 gis switchgear has multiple modules, which can be combined in different ways according to user requirements. It can provide multiple combinations to meet the needs of the vast majority of applications requiring ring network units.
Up to 3 modules can be configured in the same SF6 tank. When more than 3 modules are used, the expansion busbars can be used to connect the switchgear.
Ring6 can be supplied with an integrated remote control and monitoring unit.
Ring6 is an SF6 insulated, extendable compact switchgear system for secondary distribution. The switchgear has a unique flexibility due to its extendability and the possible combination of fully modular semi-modular configurations.
33kV GIS gas insulated switchgear will be in trial operation before delivery, it must to perform a voltage withstand test according to the standard IEC62271. We have developed a testing system to ensure the isolation matches the rated voltage.
| Ring6 33KV | C-module | F-module | v-module | ||||
| Switch disconnector | Earthing switch | Switch-fuse disconnector | Downstream earthing switch | Vacuum circuit-breaker | Earthing switch/ disconnector | ||
| Rated voltage | kV | 36/ 40,5 | 36/40,5 | 36/40,5 | 36/ 40,5 | 36/ 40,5 | 36/ 40,5 |
| Power frequency-withstand voltage | kV | 70/95 | 70/95 | 70/95 | 70/95 | 70/95 | 7D / 95 |
| -across disconnector | kV | 80/ 110 | 80/110 | 80/110 | |||
| Lightning inpulse withstand voltage | kV | 170/185 | 170/185 | 170/185 | 170 /185 | 170/185 | 170/185 |
| -across disconnector | kV | 195/215 | 195/215 | 195/215 | |||
| Rated normal current | A | 630/ 6301) | 200/ 2002) | 630/ 6301) | |||
| Breaking capacities | |||||||
| -active load | A | 630/ 630 | 200/ 200 | ||||
| -closed loop | A | 630/ 630 | 200/ 200 | ||||
| -off load cable charging | A | 20/ 21 | 20/21 | 50(Class Cl) | |||
| -earth fault | A | 60/63 | 60/63 | ||||
| -earth fault cable charging | A | 35/36 | 35/36 | ||||
| -transfer current | A | 840/750 | |||||
| -shart-circuit breaking current | kA | see3) | 20/20 | ||||
| Making capacity | kA | 50/50 | 50/50 | see3) | 2,5/ 2,5 | 50/50 | 50/50 |
| Class (Electrical endurance) | E3/ E2 | E2/E2 | -/- | E2/E2 | E1/ E1 | E2/E2 | |
| Short time current 1 sec.4) | kA | 16/16 | 16/16 | 1/1 | 16/16 | 16/16 | |
| Short time current 1 sec.5) | kA | 25/25 | 25/25 | 25/25 | 25/ 25 | ||
| Short time current 3 sec.5) | kA | 20/20 | 20/20 | 20/20 | 20/20 | ||
| Internal arc classitication IACAFL,1s | kA | 20/20 | 20/20 | 20/20 | |||
1) 400A for bushings Interface B (400 series plug-in) 2) Depending on the current rating of the fuse-link 3) Limited by high voltage fuse-links 4) Max. rating for bushings Interface B (400 series plug-in)
5) Valid for bushings Interface C
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