Product overview
The 11kV SF6 gas insulated switchgear produced by Hengfengyou Electric is a widely used high-voltage electrical equipment in modern power systems, which has the following significant characteristics:
1. High reliability: SF6 gas is an efficient arc extinguishing medium and insulation material, with much stronger arc extinguishing performance than air, which can effectively improve the ability of circuit breakers to break short-circuit currents. In addition, this gas has stable chemical properties under normal working conditions and is not easily decomposed or produces harmful by-products.
2. Compact design: Due to the excellent insulation performance of SF6 gas, higher voltage levels can be achieved in a smaller space, thereby reducing the volume of the entire switchgear and saving installation space.
3. Long lifespan and maintenance free: The excellent sealing structure ensures that internal components are not affected by external environmental factors such as moisture, dust, etc. This not only extends the service life of the equipment, but also greatly reduces the need for daily maintenance.
4. Safety: It is manufactured using advanced technology and strict production processes to ensure the safety and stability of the product during operation. Even if a fault occurs, it can quickly isolate the fault point and reduce the impact on the power grid.
5. Environmentally friendly: Although SF6 gas itself is one of the greenhouse gases, its impact on the environment is relatively small because its usage is very small and once packaged well, it will not leak into the atmosphere.
6. Intelligent function (optional): Some models may be equipped with intelligent monitoring devices that can monitor equipment status parameters in real time, such as temperature, pressure, etc., and transmit data to a remote control center through communication interfaces for remote management and fault warning.
Technical Parameter
|
C Module |
F Module |
V Module |
CB Module |
Load switch |
Gis |
Vacuum Switch |
Isolation/grounding switch |
Vacuum Circuit Breaker |
Isolation/grounding switch |
Rated voltage kv |
12 |
12 |
12 |
12 |
12 |
12 |
Rated frequency Hz |
50 |
50 |
50 |
50 |
50 |
50 |
Power frequency withstand voltage (phase/fracture) kv |
42/48 |
42/48 |
42/48 |
42/48 |
42/48 |
42/48 |
Lightning impulse withstand voltage kv |
75/85 |
75/85 |
75/85 |
75/85 |
75/85 |
75/85 |
Rated current A |
630 |
|
630 |
|
1250/630 |
1450 |
Breaking capacity |
|
Rated closed-loop breaking current A |
630 |
|
|
|
|
|
Rated cable charging switch current A |
10 |
|
|
|
|
|
Rated break closing current (peak)A |
50 |
|
|
|
|
|
Rated peak withstand current kA |
50 |
80 |
|
|
|
|
Rated short-time withstand current kA/35 |
20 |
|
|
|
|
|
Rated short circuit breaking current kA |
|
31.5 |
20 |
|
25 |
|
Rated transfer current A |
|
1700 |
|
|
|
|
Fuse maximum current A |
- |
125 |
|
|
|
|
Loop resistance -n |
≤300 |
≤600 |
|
|
|
|
Mechanical life (frequency) |
5000 |
3000 |
5000 |
2000 |
5000 |
5000 |
Structural diagram of switchgear