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XGN15-12(SF6) Unit AC Metal-enclosed Ring Network Switchgear
Published in2018-08-03
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XGN15-12 12kV High voltage eletrical switchgear/sf6 ring main unit switchgear
Product Description
XGN15-12(SF6) Unit AC Metal-enclosed Ring Network Switchgear (hereinafter called rinf network switchgear) adopts foreign advanced technology and accords to the demands of the domestic rural and urban network reconstruction. And it is a new generation of high voltage electrical product through independent design and development. All the technical performance meets the standards of IEC62271-200, 2003 and GB3906.
The main switch, operating mechanism and other components of the ring network switchgear adopt original imported ABB equipments or SFL-12 switch equipment which uses original imported parts to assemble in China. We can also use original imported ABB equipment: SFL type---SF6, circuit breaker or VD4-S type vacuum circuit breaker. Its operation mode can be divided into two kinds: manual and electric.
Cabinet is processed by numerical control machine tool and connected by rivets. Its protection degree is IP3X. It has reliable mechanical interlock and operation function of error preventing. The product has small volume, light weight, beautiful appearance, easy operation, long life, high parameter, no pollution and less maintenance as its extremely remarkable features.
XGN15-12(SF6) Unit AC Metal-enclosed ring network switchgear is used in the power system of AC 50Hz 12kV to receive and distribute power. The main switch in the cabinet is SF6 switch.
Environmental Conditions
1)Suitable Temperature: -15℃~ +40℃
2)Suitable Altitude:≤1000m
3)Relative Humidity: Daily mean≤95%, monthly mean≤90%
4)Gradation of Earthquake Damage:≤Level 8
5)Applicable occasions should be free from corrosives, inflammables and vapor.
Application:
It is used for power supply systems of ring network or radiation system with rated voltage 12kV and rated current 630A or below.It is applicable to install in pre-fabricated substation, mainly used for urban power grid renovation and construction.
Type Designation
Technical Data
Table 1
| Rated voltage (kV) | 12 |
| Rated frequency (Hz) | 50 |
| Rated Current of Main Busbar (A) | 630 |
| Maximum Rated Current of Fuse (A) | 125 |
| Rated Short-time Withstands Current of Main Loop and Grounding Loop | 20, 3 kA/s |
| Rated Peak Withstand Current of Main Loop and Grounding Loop | 50 kA |
| Rated Short-circuit Closing Current of Main Loop and Grounding Loop | 50 kA |
| Breaking Times of Load switch with Full Capacity | 100 times |
| Fuse Breaking Current | 31.5, 40 kA |
| Rated Closed Loop Breaking Current | 630 A |
| Rated Transfer Current | 1600 A |
| Mechanical life | 2000 times |
| 1min. Power Frequency Voltage (Peak Value)(Phase to Phase and Phase to Earth/Isolating Fracture) | 42, 48 kA |
| Lightning Impluse Withstand Voltage (Peak Value)(Phase to Phase and Phase to Earth/Isolating Fracture) | 75, 85 kA |
| 1min. Power Frequency Voltage of Secondary Loop | 2 kV |
| Protection Degree | IP3X |
Table 2
| Specifications of SFL | |||
| Rated Voltage | 12 kV | 17. kV | 24 kV |
| Impulse Withstand Voltage | 75 kV | 95 kV | 125 kV |
| 1min. Power Frequency Withstand Voltage | 28 kV | 38 kV | 50 kV |
| Rated Current | 630 A | 630 A | 630 A |
| Closing Capacity | 50 kA | 50 kA | 40 kA |
| Thermal Stability Current | 20.3 kA/s | - | - |
| Breaking Capacity | 1700 A | - | - |
| Maximum Fuse | 125 A | - | - |
| Polar Distance | 210 mm | 210 mm | 210 mm |
NOTE: Special requirements need to be discussed with the manufacturer.
Outer Assemble
| Width of Circuit Breaker Cabinet | 750 mm |
| Width of Other Cabinets | 375, 500 mm |
| Height | 1600, 1850 mm |
| Depth | 980, 900 mm |
| Height of Relay Instruments Compartment | 450 mm |
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