European-style prefabricated power substation
Descriptions
The European-style prefabricated power substation is an integrated substation with the following typical structural design features:
1. Box structure: The box is typically made of high-strength metal materials, such as galvanized zinc steel plate, to provide excellent corrosion resistance and durability. The sealed design of the box protects internal equipment from external environmental influences.
2. Internal layout: The interior layout of the European-style prefabricated power substation is rationalized, usually integrating transformers, high-voltage switchgear equipment, low-voltage distribution equipment within a single enclosure. These devices are arranged in functional zones for ease of maintenance and operation.
3. Transformer room: The transformer room is typically located at the center or one side of the enclosure and houses dry-type or oil-immersed transformers selected based on load requirements and environmental conditions.
4. High-voltage chamber: This chamber contains high-voltage switchgear equipment such as circuit breakers, disconnect switches, current transformers used for controlling and protecting high-voltage circuits.
5. Low-voltage chamber: This section includes low-voltage distribution equipment such as distribution cabinets, switchgear cabinets, capacitor banks used for distributing and controlling low-voltage power sources.
6. Control room: The control room may contain a comprehensive microcomputer automation system that enables monitoring, control, and protection functions for the substation.
7. Ventilation and heat dissipation systems: To ensure proper operating temperatures for equipment inside the enclosure, air conditioning or fans are installed to provide ventilation and heat dissipation within the box-type transformer.
8. Moisture-proofing and fire prevention measures: Interior components may be constructed using moisture-resistant materials while being equipped with fire alarm systems and firefighting systems to enhance safety.
9.Grounding system：Ensure that all electrical equipment have good grounding to prevent electrical faults
10.Intake & exhaust line method：High voltage & low voltage cables usually enter & exit through dedicated cable channels in order to maintain sealing & safety
11.Maintenance channel：For easy maintenance& repair,the cabinet has doors or passages convenient for personnel access
12.Appearance: The appearance design takes into account coordination with surrounding environment, may use different colors & shapes suitable for various installation scenarios
This structural design aims to achieve efficient, safe, and easily maintainable power supply solutions applicable across diverse environment and application scenarios
Applications
The European-style prefabricated power substation is suitable for residential areas, urban public transformer, bustling city, construction power supply, etc. Users can choose the model according to different conditions of use and load level
Working condition
►Altitude: ≤1000m.Ambient temperature: -30 °~ +40°C;
►Outdoor wind speed: no more than 35m/s;
►Relative humidity: Daily average 95%, monthly average 90%,
►Seismic restraint capacity:
►horizontal earthquake acceleration: below 0.4m/s2
►vertical earthquake acceleration below 0.15m/s2
►Installation location: there should be no violent impact, severe pollution, chemical corrosion, conductive dust, flammable and explosive ►hazardous articles which are harmful to metal and insulator
►Please consult us when the normal conditions for use can't be met.
Product structure Characteristics
►Integrated design: transformer, high and low voltage switchgear, control and protection equipment are integrated in a sealed box to achieve efficient use of space.
►Small floor area: Due to high integration, the floor area of the prefabricated power substation is relatively small, especially suitable for ►the urban environment where land resources are tight.
►Fast installation: the European-style prefabricated power substation can be quickly installed anywhere needed, greatly shortening the construction cycle.
►Easy maintenance: The internal layout of the box is reasonable, and the design of the maintenance channel and access door facilitates daily maintenance and troubleshooting.
►Strong environmental adaptability: the interior of the European box is usually equipped with air conditioning and dehumidification system, which can adapt to various harsh weather conditions and ensure the stable operation of the equipment.
►High safety: The use of full insulation or local insulation design, reduce the risk of electric shock, and equipped with overload, short circuit etc. protection functions.
►High degree of automation: equipped with microcomputer integrated automation system to achieve remote monitoring and control, improve operation efficiency and reliability.
►Strong reliability: Modular design makes each part relatively independent, local failure does not affect the overall operation, improve the reliability of the system.
►Good economy: Compared with the traditional substation, the European transformer reduces the construction and maintenance costs, and has better economy.
►Strong scalability: The design takes into account the possible expansion needs in the future, and it is easy to add or replace equipment to adapt to the growing power demand.
►Aesthetic coordination: The appearance design considers coordination with the surrounding environment, and different colors and shapes can be used to adapt to different installation scenarios.
►Low noise: Because the transformer and the main equipment are installed in the sealed box, the European box changes the noise during operation is low.
►High efficiency: The internal equipment of the European box is usually designed with high efficiency and energy saving, which reduces energy loss.
►Easy to upgrade: With the development of technology, the European box can be easily upgraded to meet the needs of new power systems.
►Meet the requirements of environmental protection: the design and material selection of European-style prefabricated power substation ►meet the requirements of environmental protection, reducing the impact on the environment.
Main Technical Parameters
|
Name |
Items |
Unit |
Parameter |
||
|
High Voltage Unit |
Rated frequency |
HZ |
50 |
||
|
Rated voltage |
KV |
6 |
10 |
35 |
|
|
Maximum operating voltage |
KV |
6.9 |
11.5 |
40.5 |
|
|
Rated current |
A |
440, 630, 1250 |
|||
|
Transfer current |
A |
1200-3150. |
|||
|
Power frequency withstand voltage to ground and interphase/isolation fracture |
KV |
42/48 |
|||
|
Lightning impulse withstand voltage to ground and interphase/isolation fracture |
KV |
75/85 |
|||
|
Rated short circuit breaking current (current limiting fuse) |
KA |
31.5 |
|||
|
Transformer Unit |
Rated voltage |
KV |
6, 10, 35 |
||
|
Rated capacity |
KVA |
30-2000 |
|||
|
Tap range |
% |
±2x2.5%, ±5% |
|||
|
Connection Symbol |
Yyn0, Dyn11 |
||||
|
Impedance voltage |
% |
4, 4.5, 6, 8 |
|||
|
Low Voltage Unit |
Rated voltage |
V |
220, 380, 690, 800 |
||
|
Main loop rated current |
A |
50-4000. |
|||
|
Branch current |
A |
5-800. |
|||
|
Outer Shell |
IP Grade (regular products) |
High pressure chamber IP33, Transformer room IP23, Low voltage room IP33 |
|||
|
Noise level |
dB |
≤50 |
|||
A variety of appearances are available
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