11kv Outdoor Gas Insulated Ring Main Unit
SF6 gas-insulated compact metal-enclosed switchgear adopts modular design, with its perfect unity of fixed and flexible expansion, to suit the requirements of end users or network nodes, and to meet the requirements of various power distribution switching stations, box-type substations, and...
Description
SF6 gas-insulated compact metal-enclosed switchgear adopts modular design, with its perfect unity of fixed and flexible expansion, to suit the requirements of end users or network nodes, and to meet the requirements of various power distribution switching stations, box-type substations, and cables The need of the tap box has the characteristics of compact structure, safety and reliability, long life and maintenance-free.
Normal use conditions:
Altitude: ≤3000 meters
Ambient temperature: highest temperature +55℃, lowest temperature -45℃
Humidity: Maximum average relative humidity: 24 hours measurement ≤95%, 1 month measurement ≤90%
Earthquake resistance: earthquake intensity does not exceed 8 degrees
Technical characteristics:
SF6 gas pressure is 0.4bars (relative pressure) at 20°C
Annual leakage rate≤0.25‰/year
Water immersion test 0.3 bars of pressure under water / 24 hours
Arcing test With arc extinguisher 20kA/1s without arc extinguisher 16kA/1s
Protection level SF6 air chamber IP67
Busbar:
Bus bar 400mm2Cu in the switch cabinet
Switchgear ground bus 160mm2Cu one bolt diameter; M10
Gas chamber stainless steel shell thickness 2.5mm
Fuse cartridge IP67, switch cabinet shell IP4X
SF6 insulated ring main unit technical data:
| SafeRing | 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 | 12/17,5/24 | 12/17,5/24 | 12/17,5/24 | 12/17,5/24 | 12/17,5/24 | 12/17,5/24 |
| Rated frequency | Hz | 50/50/50 | 50/50/50 | 50/50/50 | 50/50/50 | 50/50/50 | 50/50/50 |
| Power frequency withstand voltage | kV | 28/38/50 | 28/38/50 | 28/38/50 | 28/38/50 | 28/38/50 | 28/38/50 |
| Lightning impulse withstand voltage | kV | 95/95/125 | 95/95/125 | 95/95/125 | 95/95/125 | 95/95/125 | 95/95/125 |
| Rated normal current | A | 630/630/630 | 200 | 200/200/200 | |||
| Breaking capacities: | |||||||
| active load | A | 630/630/630 | |||||
| closed loop | A | 650/650/650 | |||||
| off load cable charging | A | 140/140/140 | |||||
| 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 | kV | 16/16/16 | |||||
| Making capacity | kV | 52,5/40/40 | 52,5/40/40 | 12,5/12,5/12,5 | 40/40/40 | 40/40/40 | |
| Short time current | kV | 21/16/16 | 21/16/16 | 16/16/16 | 16/16/16 | ||
Details:
Factory:
FAQ:
(1). How to order the products?
Send your product name, model and drawing and let us confirm the right one, and recommend and make a good offer.
(2). About lead time and shipping time?
Usually it is 10-15 days, if quantity is big, lead time will be extended.
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