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| Customization: | Available |
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| Type: | Distribution Metering Box |
| Structure: | Fixed Board |
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SF6-insulated ring main unit and SF6-insulated compact switchgear are used in medium voltage distribution networks. They offer a sealed stainless steel tank which contains all the live components and switching functions. The transformer is protected either by a switch fuse combination or a vacuum circuit breaker.
SF6-insulated ring main unit can be supplied as a 2, 3 or 4-way unit in standard configurations with additional equipment according to customer specification.
SF6-insulated compact switchgear has a unique flexibility due to its extendibility and the possible combination of fully modular and semi-modular configurations, with a maximum of 5 modules in one SF6-tank.
The units are delivered from the factory ready for installation. Routine tests are carried out on all units/ modules before dispatch. No special tools are required for installing the equipment.
| Gas Insulated Switchgear | C-module | F-module | V-module | ||||
|
Switch disconnector |
Earthing switch |
Switch-fuse combination |
Earthing switch |
Vacuum circuit-breaker |
Earthing switch | ||
| Rated voltage | kV | 12/17,5/24 | 12/17,5/24 | 12/17,5/24 | 12/17,5/24 | 12/17,5/24 | 12/17,5/24 |
| Power frequency withstand voltage | kV | 28/38/50 | 28/38/50 | 28/38/50 | 28/38/50 | 28/38/50 | 28/38/50 |
| Impulse withstand voltage | kV | 95/95/125 | 95/95/125 | 95/95/125 | 95/95/125 | 95/95/125 | 95/95/125 |
| Rated current | A | 630/630/630 | 2001) | 200/200/200 | |||
| active load | A | 630/630/630 | |||||
| closed loop | A | 670/670/670 | |||||
| off load cable charging | A | 141/141/141 | |||||
| off load transformer | A | 20/20/20 | |||||
| earth fault | A | 205/160/160 | |||||
| earth fault cable charging | A | 117/91/91 | |||||
| short-circuit breaking current | kA | see 2) | 16/16/16 | ||||
| Making capacity | kA | 52,5/40/40 | 52,5/40/40 | see 2) | 12,5/12,5/12,5 | 40/40/40 | 40/40/40 |
| Short time current 0,5 sec 3) | kA | 16/16/16 | |||||
| Short time current 1 sec 4) | kA | 5/5/5 | 16/16/16 | ||||
| Short time current 3 sec 5) | kA | 21/16/16 | 21/16/16 | 16/16/16 |
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