1000kVA 11kV Compact Substation - China Suppliers Prefabricated Box-Type Substation Factory Solutions
Model meaning
Conditions of use
- Altitude: ≤1000m;
- Ambient temperature: upper limit of ambient air temperature +40℃, lower limit -15℃;
- Relative humidity: The daily average relative humidity shall not exceed 95%; monthly average relative humidity shall not exceed 90%;
- Installation location: in places without fire, explosion hazard, conductive dust, chemical corrosive gas and severe vibration;
- When the above normal service conditions cannot meet the usage requirements, the user shall negotiate with the manufacturer.
Product characteristics
The basic structure of the substation is classified into “目” and “品” shapes. The box framework is welded with high-quality channel steel and angle steel, with high mechanical strength. The box is made of aluminum alloy profiles, which have good anti-corrosion ability. The overall beautiful appearance can be coordinated with the surrounding environment through painting and coloring. The carefully designed bottom lifting device provides great convenience for installation, transportation and movement.
There are independent high-voltage room, transformer room and low-voltage room inside the substation, and the lighting in each room automatically opens with the opening of the door. The high-voltage room is equipped with high-voltage ring main unit, which can be selected as compressed air type or vacuum load switch according to user needs, and it also has the "five prevention" function. When current-limiting high-voltage fuse is used, if a phase fuse is blown, the load switch will automatically open, avoiding faults caused by phase loss operation.
The transformer room adopts natural ventilation and automatic control forced cooling device, with exhaust system that automatically controls with temperature changes, which can effectively control and reduce the temperature inside the box to meet operational requirement. According to user requirements, anti-condensation device can also be used, which can be easily accessed from both sides of the transformer room through the door along the track. The box material can prevent rainwater and dirt from entering, and has the conditions for long-term outdoor use, ensuring anti-corrosion, waterproof and dustproof performance, long service life, simple maintenance, as well as beautiful appearance.
Substation performance parameter
| No. | Item | Unit | Parameter |
|---|---|---|---|
| High voltage unit | Rated frequency | Hz | 50 |
| Rated voltage | kV | 7.2、12 | |
| Rated current | A | 400、630 | |
| Transfer current | A | 1200~3150 | |
| Power frequency withstand voltage(phase-ground,phase-phase/isolating distance) | kV | 42/48 | |
| Lightning impulse withstand voltage(phase-ground,phase-phase/isolating distance) | kV | 75/85 | |
| Rated short-circuit breaking current (current-limiting fuse) | kA | 31.5 | |
| Rated capacity | kVA | 30~2000 | |
| Tap range | ±2x2.5%、±5% | ||
| Transformer unit | Connecting group | % | YynO、Dyn11 |
| Impedance voltage | % | 4、4.5 | |
| Low voltage unit | Rated voltage | V | 220、380 |
| Rated current of main circuit | A | 50~4000 | |
| Branch current | A | 5~800 | |
| Outer shell | Protection level (conventional product) | IP33D | |
| Noise level | db | ≤50 |
Substation layout plan
Basic drawing and layout plan
