XGN2 -12 box-type fixed metal-enclosed switchgear is from Xi'an High Voltage Apparatus Research Institute to develop and complete the development of high-voltage switchgear. Equipment used in the main components are a redesigned, with the GG-1A (F) compared to type switchgear has a higher level of insulation and protection, internal do not use any form of white and relatively insulated partition and gas; the second do not use the second plug-loop (that is, no matter what state of equipment, protection and control loop is always running); products in line with the targets of GB3906 "3 ~ 35kV AC metal-enclosed switchgear," and international standards and IEC298 Publication mechanical power two pairs of the "Five Anti" requirement, the product for 3 ~ 10kV single busbar, single busbar with bypass system as a high-voltage power and distribution equipment.
■ Preparation of technical parameters switchgear.
| ID |
Item |
Units |
Technology parameters |
| 1 |
Rated voltage |
kV |
3 6 10 |
| 2 |
Maximum working voltage |
kV |
3.6 7.2 12 |
| 3 |
Rated Current |
A |
5～3000 |
| 4 |
Rated breaking current |
kA |
20 25 31.5 40 |
| 5 |
Rated short-circuit closing current |
kA |
50 63 80 100 |
| 6 |
Dynamic Stability rated short-circuit current |
kA |
50 63 80 100 |
| 7 |
Rated current of heat-stable |
kA |
20 25 31.5 40 |
| 8 |
Rated thermal stabilization time |
S |
4 |
| 9 |
Protection level |
|
IP2X |
| 10 |
Bus System |
|
Single busbar, single busbar with bypass |
| 11 |
Operation |
|
Electromagnetic, spring-type energy storage |
| 12 |
Dimensions (width × high × deep) |
mm |
1100×1200×2650（1250A以下）
1200×1200×2650（1600A以下） |
| 13 |
Weight |
kg |
1000 |
■ Technical parameters of vacuum circuit breaker
| Item |
ZN28-10 ZN63A-12 |
| Rated voltage |
kV |
20 |
25 |
31.5 |
40 |
| Rated Current |
A |
10 |
| The maximum voltage |
kV |
630~1250 |
630~1600 |
1250 1600
2000 2500 |
1600 2000
2500 3150 |
| Rated short-circuit breaking current |
kA |
20 |
25 |
31.5 |
40 |
Rated closing current
Dynamic Stability rated current |
kA(Peak) |
50 |
63 |
80 |
100 |
| Rated current of heat-stable |
kA(有效值) |
20 |
25 |
31.5 |
40 |
|
Thermal stabilization time |
S |
4 |
|
Rated short-circuit breaking current breaking number of |
|
50 |
30(50) |
| Rated operating sequence |
|
All sub-0.3S sub-180s-Hop sub-(sub-180s-kg sub-sub-180s-Hop) |
|
Arcing time |
ms |
20 |
| Vacuum vacuum interrupter |
Pa |
Not less than 6.6×10-4 |
| Rated insulation level |
1min power frequency voltage
|
kV |
42 |
|
Lightning Impulse Withstand Voltage |
kV |
75 |
| Mechanical life |
次 |
10000 | |
