- Product Overview
40.5/T2500-31.5 Tank Type SF6 Free Gas-insulated Metal-enclosed Switchgear (GIS) adopts clean air as insulation medium and vacuum arc extinguishing technology, and does not produce any greenhouse gas emissions and leakage. At the same time, the equipment is also a new generation of medium-voltage switchgear developed on the basis of high-voltage 145kV GIS product technology and in accordance with the medium-voltage 40.5kV parameter requirements. It can be widely used in various important power distribution systems of the national economy, such as transmission and substation networks, urban power supply networks, power generation, rail transit, petrochemicals, metallurgy, mining, building materials and other large industrial users. This product has been specially optimized for the transformation needs of old switchgear. It can quickly transform the common air insulated switchgear with a cabinet width of 1200mm~1680mm and a cabinet depth of 2800~3200mm without moving the foundation, changing cables, or strengthening the load-bearing capacity; the product has obtained a number of national invention patents and utility model patents, and has completely independent intellectual property rights.
- Product Features
- Safe and reliable
- The high-voltage components are completely sealed in the cast aluminum tank body, the tank body has high mechanical strength, the compartment inflation pressure is ≤2Mpa, and the electrical performance is stable.
- It has a complete mechanical and electrical interlocking system to effectively prevent misoperation.
- Strong environmental adaptability
- Fully insulated, fully sealed , and not affected by the environment.
- Insulating performance is not affected by altitude.
- Can be installed in humid, sandy and dusty areas, salt spray, mines and other areas without taking special precautions.
- Intelligent
- Integrated with a variety of sensing elements, it can realize network communication with the background monitoring system. It has intelligent functions such as online detection of typical mechanical characteristics of circuit breakers and electrical mechanical life, which enhances the transparency of related nodes in the distribution network, so as to monitor and control the distribution system more easily, improve cost-effectiveness, and extend the product life cycle.
- Environmental and economy
- The switchgear adopts a fluorine-free solution, and the insulating gas composition comes from clean air in nature, eliminating greenhouse gas emissions.
- Separate airtight busbar chamber and circuit breaker chamber, easy maintenance. Modular design, compact structure, flexible scheme combination. Fully sealed design, maintenance-free, reducing operation and maintenance costs.
- Technical Parameters
|
No. |
Item |
Unit |
Parameter |
|
|
1 |
Rated voltage |
kV |
40.5 |
|
|
2 |
Rated current |
Hz |
50 |
|
|
3 |
Rated frequency |
A |
1250/2500/3150 |
|
|
4 |
Insulation level |
Power frequency withstand voltage (phase to phase, phase to ground) |
kV |
95 |
|
Power frequency withstand voltage (isolating fracture) |
kV |
118 |
||
|
Lightning impulse withstand voltage (phase to phase, phase to ground) |
kV |
185 |
||
|
Lightning impulse withstand voltage (isolating fracture) |
kV |
215 |
||
|
Auxiliary circuit rated power frequency withstand voltage |
kV |
2 |
||
|
5 |
Rated short-time withstand current |
kA |
31.5/40 |
|
|
6 |
Rated short-time duration |
s |
4 |
|
|
7 |
Rated peak withstand current |
kA |
80 |
|
|
8 |
Circuit breaker rated short-circuit breaking current |
kA |
31.5 |
|
|
9 |
Circuit breaker rated short-circuit making current(peak) |
kA |
80 |
|
|
10 |
Rated operation sequence |
|
O-0.3S-CO-3min-CO |
|
|
11 |
Isolation gas |
|
Dry air |
|
|
12 |
Circuit breaker mechanical lifespan |
times |
10000 |
|
|
13 |
Circuit breaker electrical lifespan |
Class |
E2 |
|
|
14 |
Dry air, rated pressure(abs, 20℃) |
MPa |
0.02 |
|
|
15 |
IP grade |
Gas tank |
/ |
IP67 |
|
Metal shell |
/ |
IP4X |
||
|
16 |
Dry air annual leakage rate |
% |
≤0.1 |
|
|
17 |
Switchgear dimension (W*D*H, mm) |
mm |
800*2000*2550 |
|

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