Prefabricated Substation
Your Professional Prefabricated Substation Supplier
Xi'an Tianhong Electric Co., Ltd. is committed to the research and manufacture of high-quality power transmission and distribution equipment, with the company's leading products comprising various types of resin poured and drying transformers, oil-immersed transformers, American (Chinese) box transformers, box substations, and various high and low voltage distribution cabinets such as electric power, non-grade alloys, on-load voltage regulation, rectification, and marine (offshore platform) air and water cooling.
Why Choose Us
Advanced Production Technology
We utilize cutting-edge equipment, including low-voltage automatic foil winding machines, high-voltage intelligent winding machines, and Fluke power analyzers, sourced from leading international suppliers like the U.S. and Germany, ensuring precise and efficient manufacturing.
Strong R&D and Innovation Capabilities
Building on our military technology heritage, we continuously enhance our technological innovation in transformer and substation production, staying at the forefront of industry advancements and offering tailored solutions for power transmission and distribution.
Quality Assurance and Certification
Our adherence to ISO9001:2015, ISO14001:2015, and ISO45001:2018 standards ensures that all products undergo rigorous quality control, meeting international standards for quality, environmental safety, and occupational health.
Skilled Workforce
Our highly qualified team includes experts with extensive experience in power equipment, as well as young talents, fostering a dynamic and forward-thinking approach to product development and customer service.
ZBW Type Prefabricated Substation
ZBW packaged substation, also known as prefabricated substation, As a new type of power supply and distribution device, has more advantages than traditional civil substation. Such as smaller size, smaller floor area, compact structure, flexible movement, which greatly reduce period and area for construction in site, also the construction cost. Meanwhile, prefabricated substation is easy to be installed at site , can realize rapid power supply, almost maintenance free. Most particularly, it is placed at load center so that reduce power loss effectively to improve power quality, enhance the reliability of power supply and also is significant for distribution network transformation.
Main technical parameters
|
Description |
Unit |
Data |
|
|
HV compartment |
Rated Frequency |
Hz |
50 |
|
Rated voltage |
kV |
6 10 35 |
|
|
Max operating voltage |
kV |
6.9 11.5 40.5 |
|
|
Power frequency withstand voltage (phase to ground and between phases)/ disconnector fracture |
kV |
32/36 42/48 95/118 |
|
|
Lightning impulse withstand voltage (phase to ground and between phases)/ disconnector fracture |
kV |
60/70 75/85 185/215 |
|
|
Rated current |
A |
400 630 |
|
|
Rated short-time withstand current |
kA |
12.5(2S) 16(2S) 20(2S) |
|
|
Rated peak withstand current |
kA |
32.5 40 50 |
|
|
LV compartment |
Rated voltage |
V |
380 200 |
|
Rated current of main circuit |
A |
100～3200 |
|
|
Rated short-time withstand current |
kA |
15 30 50 |
|
|
Rated peak withstand current |
kA |
30 63 110 |
|
|
Branch current |
A |
10 ～ 800 |
|
|
Number of branch circuits |
/ |
1 ～ 12 |
|
|
Compensation capacity |
kVA R |
0 ～ 360 |
|
|
Transformer |
Rated capacity |
kVA |
50～2000 |
|
Hort-circuit impedance |
% |
4 6 |
|
|
Tapping range |
/ |
±2×2.5% ±5% |
|
|
Connection group symbol |
/ |
Yyn0 Dyn11 |
|
Advantages of ZBW Type Prefabricated Substation
Compact and Space-Saving Design: With a capacity three times larger than conventional substations, these prefabricated unit substations drastically reduce the footprint. These are very useful in areas that are heavily populated and have space constraints.
Fully Sealed and Insulated: Their design greatly reduces the possibility of power interruptions because prefabricated substations are fully sealed and insulated. A distance for additional insulation is not required, which means personal safety is also greatly assured.
Substation Features: Substations can be integrated into multiple power supply systems such as ring network power supply, dual power supply, or terminal power supply systems. This allows for greater flexibility in power distribution.
Reducing the effect of sunlight radiation: Double-layered thermal insulation structure of these substations protects the internal components from harmful sunrays. Moreover, there are some ventilation holes in the structure to dissipate heat.
Safety: These substations are safer due to double fuse protection with dual sensitive fuses, which respond to temperature as well as current, reducing operational expenses.
Durability: The protective enclosure of the substations is robust, which enhances the durability of the structure while preventing internal components from dust, moisture, and extreme weather conditions.
Cost and time-effective: The modular design of these substations makes them easier to install due to minimal site work during installation. This leads to lower labor costs and shorter project timelines.
Types of ZBW Type Prefabricated Substation
Pad-mounted substation
A integration substation is divided into two parts, the front part is the high and low voltage terminals. The high voltage terminal has bushings and voltage regulating load switches, the low voltage terminal has oil filling valves, thermometers, nameplates, grounding copper bars, etc. The rear part is the radiator, transformer oil tank, etc.
Compact substation
A compact substation has the same components – transformer, high voltage switchgear and low voltage distribution system. Each component is housed in its own substation room, unlike an integrated substation. They come in the more convenient mu form, or the more compact pin form.
Applications of ZBW Type Prefabricated Substation
Power Distribution in Cities
For residential and commercial areas in urban regions, power distribution is made effortless by means of prefab substations.
Industrial Facilities
Sustained power provision is necessary for warehouses, factories, and manufacturing plants to allow the use of machinery and power workstations. So, industrial facilities make efficient use of prefab substations as they are able to handle high-power loads.
Construction Sites
Lighting, power tools, and heavy-duty equipment all require power while construction projects are ongoing. For this reason, prefab substations are ideal as they are mobile and can be used at various locations.
Renewable Energy Projects
These substations play a key role in connecting solar farms and wind power plants with the rest of the power grid. Controlling the smooth flow of energy transmission alongside handling fluctuating power outputs makes these substations essential to renewable energy infrastructure.
Railways and Metro Systems
The substations are prefabricated for power supply to metro networks, railway stations and tram systems, which require power for trains, signalling, and operations around the station. Their small form factor enables them to be mounted in underground or metropolitan locations.
Mining Operations
The remote and harsh environments of the operating mines are provided with reliable and robust power from the prefabricated substations mounted close to them. Substations of this type are constructed to endure dust and moisture along with very high and low temperatures.
Oil and Gas Industry
Oil and gas offshore platforms and onshore drilling locations need an energized power solution that is safe and explosion-proof at the same time. Prefabricated substations provide continuous, uninterrupted power to these areas of high risk while observing all security requirements.
Transformer: Central to the substation is the transformer, which alters the voltage by changing high voltage to low voltage and vice versa, depending on what is needed within the system at the particular time.
Switchgear: Switchgear also controls electric flow through the use of circuit breakers and disconnect switches to manage and shield the system from short circuits and overloading power.
Protection Devices: In order to maintain safety within the substation system, relays and surge protectors are used in order to avert damages from unexpected electrical jolts or defaults, help to keep constant operation, and ensure electrical substation equipment are safe.
Control Panel: The control panel oversees the management and supervision of the substation. It contains sets of functions that operators can check power levels and troubleshoot any functions.
Enclosure
The system is fully assembled in a strong enclosure that protects it from weather, dust, and other external damage. It ensures that all components are well-guarded and can allow the substation to work efficiently in various environments.
Busbars and Cables
Busbars are metal strips that serve as the main/distribution power supply lines within a substation. Cables link the substation to external power lines and facilitate the smooth flow of electric power.
Cooling System
Due to the heating effect of transformers, a cooling system is adopted in order to manage heat loads. Doing so conserves efficiency while helping to prolong equipment wear and tear.
Installation of ZBW Type Prefabricated Substation
Design planning
Determine the model, specification, and layout of the box-type substation according to actual needs and site conditions. Consider factors such as power supply load, power equipment, and environmental requirements, and make reasonable design planning.
Site preparation
Select a suitable site for installation, and ensure that the site is flat and stable, and meets relevant safety requirements. For earthwork, infrastructure, drainage, and other treatments, carry out corresponding preparations according to design requirements.
Box installation
After the box-type substation is transported to the designated site, the box is hoisted and placed according to the design drawings and the reserved foundation. Ensure that the connection between the box and the foundation is stable and reliable and meets relevant safety requirements.
Equipment installation
After the cabinet is installed, proceed with the equipment installation. Install the transformer, switchgear, protection device, etc. one by one to the designated location. Pay attention to the technical requirements of the equipment such as connection method, insulation treatment, and fixed installation.
Grounding and wiring
Effectively ground the box-type substation to ensure a safe and reliable electrical connection. At the same time, carry out wiring work between equipment to ensure smooth and stable power transmission.
Debugging and acceptance
After the installation is completed, the system is debugged and accepted. The normal operation of the box-type substation is ensured by checking the operating status of the equipment and measuring parameters such as current and voltage. Corresponding tests and inspections are carried out to verify that the box-type substation meets relevant standards and requirements.
Safety protection and training
During the installation process, pay attention to safety protection measures, construction workers should wear personal protective equipment that meets the requirements and comply with relevant safety operating procedures. After the installation is completed, relevant personnel will be trained, including knowledge on equipment operation, maintenance and emergency response.
Maintenance
Daily inspection
Inspection personnel should regularly inspect the substation to check whether all components are intact and whether there are any abnormal sounds or vibrations. At the same time, pay attention to checking the temperature of the equipment to prevent malfunctions caused by overheating.
Regularly clean the dust and debris in the substation to keep the equipment clean and dry to prevent the normal operation of the equipment from being affected by the accumulation of dirt.
Regularly check the circuit breakers, isolating switches, load switches, and other electrical components to ensure that they are flexible and in good contact. For aging or damaged components, they should be replaced or repaired in time.
Regularly check the working status of cooling fans, radiators, and other components to ensure they are operating normally. If there is a fault in the cooling system, it should be repaired in time to prevent the equipment temperature from being too high due to poor heat dissipation.
The insulation performance of the equipment should be tested regularly, including the measurement of insulation resistance, dielectric loss, and other indicators. Equipment with degraded insulation performance should be handled in a timely manner to prevent accidents caused by insulation failure.
Check the lightning protection device regularly to ensure that it performs well and is effectively grounded. At the same time, check the connection of the grounding grid to ensure that the grounding resistance meets the requirements. Any problems found should be dealt with in a timely manner to prevent equipment damage or safety accidents caused by lightning strikes or poor grounding.
FAQ
As one of the leading prefabricated substation manufacturers and suppliers in China, we warmly welcome you to buy customized prefabricated substation made in China here from our factory. Quality products and reasonable price are available.
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