Home > Products > Ring Main Unit > Gas insulated compact switchgear/ Gas insulated ring main unit
Gas insulated compact switchgear/ Gas insulated ring main unit
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Product Details
| Brand Name | HN electric |
Product Description
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.
SF6-insulated ring main unit | 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 |
| 200 |
| 200/200/200 |
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Breaking capacities: | |||||||
active load | A | 630/630/630 |
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closed loop | A | 670/670/670 |
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off load cable charging | A | 141/141/141 |
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off load transformer | A |
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| 20/20/20 |
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earth fault | A | 205/160/160 |
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earth fault cable charging | A | 117/91/91 |
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short-circuit breaking current | kA |
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| 16/16/16 |
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Making capacity | kA | 52,5/40/40 | 52,5/40/40 |
| 12,5/12,5/12,5 | 40/40/40 | 40/40/40 |
Short time current 0,5 sec | kA |
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| 16/16/16 |
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Short time current 1 sec | kA |
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| 5/5/5 | 16/16/16 |
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Short time current 3 sec | kA | 21/16/16 | 21/16/16 |
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| 16/16/16 |
Contact Us
- Hunan Union Electric Corp.
- Address, Changsha, Hunan
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