Prefabricated Substation for Wind Power and Photovoltaic (PV) Applications

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  • Prefabricated Substation for Wind Power and Photovoltaic (PV) Applications

Prefabricated Substation for Wind Power and Photovoltaic (PV) Applications

Prefabricated Substation for Wind Power and Photovoltaic (PV) Applications is an integrated power conversion and distribution solution designed for renewable energy projects including solar power plants, wind farms, and energy storage systems.

As a specialized Prefabricated Substation, the product integrates step-up transformer, medium voltage switchgear, low voltage connection system, protection devices, control system, communication interface, and auxiliary equipment into a factory-assembled enclosure.

Compared with traditional on-site installation solutions, the prefabricated design reduces field wiring, simplifies project coordination, shortens installation time, and improves system integration reliability.

The substation can be configured with oil immersed transformers, dry type transformers, or amorphous alloy transformers according to project requirements. Optional functions include vacuum circuit breakers, RMU, protection relays, PLC, SCADA communication, online monitoring, UPS, and fault recording systems.

The solution can be applied as a Photovoltaic Substation for solar power plants or as a Wind Power Substation for wind energy collection and step-up systems, depending on project requirements.

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  • Product Details
  • FAQ
Parameter
Specification
Product Type
Prefabricated Substation for Wind Power and Photovoltaic (PV) Applications
Rated Capacity
200 kVA–9000 kVA
System Voltage
6 kV–35 kV
Step-Up Transformer
Oil immersed, dry type, or amorphous alloy transformer
Transformer Configuration
Two-winding or three-winding design
Medium Voltage Unit
Vacuum circuit breaker, RMU, load switch, grounding switch, lightning arrester, protection relay
Low Voltage & Control System
Low voltage connection, control cabinet, communication cabinet, UPS
Monitoring System
SCADA, PLC, temperature monitoring, fault alarm, event recording, GPS time synchronization
Enclosure & Auxiliary System
Ventilation, lighting, grounding, fire protection interface, anti-condensation system
Environmental Adaptation
High temperature, high altitude, desert, coastal corrosion, salt fog, dust and humidity protection
Design Standards
IEC, GB/T, ANSI/IEEE or customer project specifications

1. What is a Prefabricated Substation used for?
A Prefabricated Substation is mainly used for renewable energy projects such as photovoltaic plants, wind farms, and energy storage systems to collect, transform, protect, and transmit generated power.

2. What is the difference between a Photovoltaic Substation and a conventional substation?
A Photovoltaic Substation is specifically designed for solar power systems and considers inverter output characteristics, power fluctuations, communication requirements, and grid connection protection.

3. Can the substation be used for wind power projects?
Yes.
The system can be configured as a Wind Power Substation for wind turbine collection systems, step-up transformation, protection, and communication integration.

4. Which transformer type should be selected?
The selection depends on:
Installation environment
Capacity requirements
Fire safety requirements
Energy efficiency targets
Maintenance conditions
Lifecycle cost
Oil immersed, dry type, and amorphous alloy transformer solutions can all be evaluated.

5. Can it operate in desert or high temperature environments?
Yes.
The substation can be designed with enhanced cooling, dust protection, anti-condensation, and corrosion-resistant solutions according to environmental conditions.

6. Can SCADA and remote monitoring systems be integrated?
Yes.
PLC, SCADA communication, remote monitoring, fault recording, and GPS synchronization can be configured according to project requirements.

7. Can OEM and ODM services be provided?
Yes.
Jiangsu Xinxin Electric supports customized electrical design, enclosure structure, equipment configuration, branding, documentation, and project-specific solutions.

  • Product Features

Integrated Renewable Energy Power Solution
The Prefabricated Substation integrates transformer, switchgear, protection, control, communication, and auxiliary systems into one prefabricated unit.
This integrated design reduces interface coordination between multiple suppliers and improves project execution efficiency.
For photovoltaic projects, the Photovoltaic Substation configuration considers inverter output characteristics, grid connection requirements, and communication interfaces.
For wind energy projects, the Wind Power Substation configuration supports wind turbine collection systems, medium voltage transformation, protection, and monitoring integration.

Factory Assembly and Reduced Installation Work
Major components are assembled, wired, and inspected before delivery.
Compared with traditional field installation, the prefabricated structure reduces:
On-site assembly work
Cable connection complexity
Commissioning time
Project coordination risks
This factory-based approach helps improve installation efficiency and delivery consistency for renewable energy projects.

Flexible Transformer Configuration
The Prefabricated Substation can be equipped with different transformer technologies:
Oil immersed transformer for outdoor and higher capacity applications
Dry type transformer for projects with higher fire safety requirements
Amorphous alloy transformer for improved no-load loss performance
The final selection depends on environmental conditions, efficiency targets, maintenance requirements, and lifecycle cost.

Intelligent Monitoring and Grid Integration
The system supports integration with:
SCADA systems
PLC control
Remote communication
Temperature monitoring
Fault alarms
Event recording
GPS time synchronization
These functions support centralized operation and maintenance of renewable energy plants.

Environmental Adaptability
The substation can be customized for challenging environments including:
Desert areas
High temperature regions
High altitude locations
Coastal salt fog environments
High humidity areas
Dusty industrial environments
Solutions may include enhanced ventilation, anti-condensation systems, corrosion protection, and special enclosure designs.

  • Application Fields
Application Area
Typical Applications
Industries Served
Photovoltaic Power Plants
Solar power generation, centralized PV projects, inverter step-up systems
PV developers, EPC contractors, renewable energy companies
Wind Power Projects
Wind turbine collection systems, medium voltage step-up applications
Wind farm developers, energy system integrators
Energy Storage Systems
PCS step-up, grid connection, energy storage power conversion
Energy storage integrators, microgrid developers
Renewable Energy Infrastructure
Utility-scale renewable projects and distributed energy systems
Utilities, EPC companies, project owners
OEM & System Integration
Customized structure, branding, project documentation
Equipment distributors, electrical integrators

  • OEM·ODM
Customization Module
Available Options
Electrical Design
Capacity, voltage level, frequency, vector group, impedance, tap range, insulation level, loss requirements
Transformer Selection
Oil immersed, dry type, amorphous alloy transformer, two-winding or three-winding configuration
Medium Voltage Equipment
RMU, vacuum circuit breaker, load switch, grounding switch, protection relay, metering system
Control & Communication
PLC, SCADA, communication protocol, remote monitoring, GPS synchronization, fault recording
Mechanical Design
Enclosure size, cable entry, ventilation, lighting, lifting structure, foundation interface
Environmental Protection
High temperature, high altitude, corrosion resistance, dust protection, anti-condensation design
Branding & Documents
OEM nameplate, labels, manuals, drawings, packaging marks, project documents

  • Why Choose Us

Complete Power Equipment Capability
Jiangsu Xinxin Electric provides integrated power equipment solutions including:
Prefabricated Substations
Oil Immersed Transformers
Dry Type Transformers
Amorphous Alloy Transformers
Distribution Equipment
This allows renewable energy EPC contractors and system integrators to coordinate transformer, substation, and power distribution requirements through one supplier.

Controlled Manufacturing and Testing
Production is managed through:
Technical specification review
Component inspection
Transformer manufacturing
Enclosure fabrication
Electrical assembly
Protection and communication testing
Final inspection
Testing can be performed according to IEC, GB/T, ANSI/IEEE, or customer-specific requirements.

International Project Support
Jiangsu Xinxin Electric provides:
Technical data sheets
Single line diagrams
General arrangement drawings
Wiring diagrams
Test reports
Operation manuals
Packing documents
Documentation can be prepared according to international renewable energy project requirements.

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About Xinxin Electric

Xinxin Electric operates a 30,000 m2 manufacturing facility and specializes in transformers and prefabricated substations. With a commitment to quality and integrity, we provide equipment and technical support for power projects worldwide.
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  • 2026/08.25 Exhibitions

    Jiangsu XinXin Electric Co., Ltd. Shines at the 2025 Indonesia International Power Exhibition—Showcasing China's Smart Manufacturing Power and Supporting Indonesia's Green Energy Transition

    From September 17 to 20, 2025, Mr. Zhan Chungen, Chairman of Jiangsu XinXin Electric Co., Ltd., along with Sales General Manager Mr. Wang Hua and their team, attended the "Electric & Power Indonesia 2025," the International Exhibition on Power Generation, Renewable Energy, and Electrical Equipment held in Jakarta, Indonesia. This year’s event focused on upgrading Southeast Asia’s power infrastructure and advancing renewable energy development. This exhibition highlights our company's latest Energy‑efficient transformer series These products include the S14‑M, S20‑M, and S22‑M series oil‑immersed power transformers, as well as the SCB14 and SCB18 series dry‑type transformers, among others. XinXin Electric's transformer products feature High protection level and excellent thermal design, capable of adapting to Indonesia's hot and humid environmental conditions. Several Indonesian power industry experts made a special trip to the XinXin Electric booth to engage in in‑depth technical exchanges and discuss potential collaborations. This year's exhibition holds significant strategic importance for XinXin Electric in expanding into the Southeast Asian market. Indonesia, as the largest economy in Southeast Asia, is actively promoting a transformation of its energy structure. Chairman Zhan Chungen stated during the exhibition: " Southeast Asia is a key component of our globalization strategy. "We will contribute China's strength to Indonesia's power development, leveraging advanced technology and reliable product quality." Xinxin Electric also plans to leverage this exhibition to connect with power equipment importers, distributors, and agents from Indonesia and Southeast Asia, discussing new business opportunities in this rapidly growing industry. Leveraging this exhibition, XinXin Electric has further expanded its brand presence in the Southeast Asian market, laying a solid foundation for deeper penetration into the local market in the future.
  • 2026/08.25 Company News

    Deepening School‑Enterprise Cooperation to Cultivate Industrial Talents — Jiangsu XinXin Electric Co., Ltd. Receives Visiting Leaders from Nanjing University

    Jiangsu XinXin Electric Co., Ltd. (hereinafter referred to as "XinXin Electric") has always attached great importance to industry‑university‑research collaborative innovation, as well as the recruitment and cultivation of high‑quality talents. On June 12, the company was honored to receive a delegation from Nanjing University, led by Professor Zhu Songqing, Member of the Standing Committee and Vice‑President of the University Party Committee. Both sides held fruitful exchanges on deepening school‑enterprise cooperation and advancing the integration of production and education. During the on‑site exchange, Mr. Zhan Chungen, Executive Director of XinXin Electric, gave the delegation led by Vice‑President Zhu Songqing a detailed introduction to the company’s development history, core business layout, advanced production processes, and technological strengths in the R&D and manufacturing of new‑energy electrical equipment. Mr. Zhan highlighted the company’s urgent demand for and long‑term planning of university talents. He expressed sincere expectations for further in‑depth and extensive substantive cooperation with Nanjing University in key areas, including close school‑enterprise integration, joint construction of high‑level internship and training bases, and joint incubation of innovation and entrepreneurship projects. Mr. Zhan stated that XinXin Electric’s development relies on innovation and talent support. Universities serve as an important source of talent and innovation, promising broad prospects for bilateral cooperation. After the briefing, Vice‑President Zhu Songqing spoke highly of XinXin Electric’s industry standing and achievements. He introduced Nanjing University’s disciplinary features, industry‑university‑research cooperation foundation, as well as student employment and entrepreneurship work. Vice‑President Zhu noted that the university will give full play to its disciplinary advantages and industry influence, integrate scientific research and talent resources with industrial resources, and align them with XinXin Electric’s technical strengths to jointly build a high‑level platform for talent training and innovative practice. He emphasized that this initiative aims to implement the integrated development strategy of education, science & technology and talent, so as to boost the sound development of the local economy and society. Vice‑President Zhu’s positive response has boosted XinXin Electric’s confidence in future cooperation. This high‑level exchange marks an important step for XinXin Electric to deepen its strategic partnership with universities. The company firmly believes that close cooperation with Nanjing University will effectively expand talent recruitment channels, optimize its talent structure, accelerate the transformation of scientific and technological achievements, and enhance its core competitiveness. It will also contribute “XinXin” strength to local industrial upgrading and economic growth. XinXin Electric will keep seizing opportunities and looks forward to conducting pragmatic multi‑dimensional and in‑depth cooperation with universities, jointly opening a new chapter for win‑win school‑enterprise collaboration.
  • 2026/08.25 Industry News

    How to Install the Transformer

    1. Construction Prerequisites (1) Drawings shall be reviewed, and detailed operating instructions shall be prepared and approved in accordance with the manufacturer’s technical data. (2) Construction quality for works related to box‑type transformer installation shall comply with current national codes for construction and acceptance of building works. (3) Positions of embedded parts and pre‑buried cable conduits shall satisfy design requirements, and all embedded parts shall be securely fixed. 2. Construction Preparation 2.1 Transformer Foundation Inspection (1) Inspect the construction quality of the transformer foundation and fill in the inspection record sheet. The record shall be signed and confirmed by all relevant parties. Any defects found shall be reported and rectified promptly. (2) Carefully verify the horizontal and longitudinal axis dimensions of the transformer foundation as well as the positions of pre‑buried conduits, and cross‑check against drawing dimensions. Proceed with subsequent work only after all dimensions are confirmed correct. 2.2 Transformer Unpacking Inspection (1) Upon arrival, the transformer shall be unpacked and inspected jointly by representatives of the owner, supervisor and manufacturer. (2) Measure and record the reading of the shock recorder before unloading; the impact value shall be less than 3G. (3) Inspect the transformer exterior for damage and confirm complete paint finish, and keep relevant records. (4) Check internal components of the transformer for displacement, contamination and other abnormalities. 3. Transformer Positioning & Installation (1) Mount the channel‑steel foundation onto embedded parts. Perform levelling and alignment. Weld the channel‑steel foundation firmly to embedded parts. Remove welding slag from welds and apply anti‑corrosive paint. (2) After hoisting the fan unit, hoist the transformer directly onto the foundation, then use jacks for levelling and alignment. (3) Connect the transformer to the foundation following the fixing method (bolted connection or welding) specified by the manufacturer. (4) In case of split delivery, install the enclosure after the transformer is positioned and oriented. (5) Affix nameplates and clean the interior of the transformer cabinet. (6) Implement finished‑product protection prior to commencing subsequent procedures.
  • 2026/08.25 Industry News

    Do Dry‑Type Transformers Need to Be De‑energized?

    Dry‑type transformers are widely applied for local lighting, high‑rise buildings, airports, wharves, CNC machinery and other facilities. Simply put, a dry‑type transformer is a transformer whose core and windings are not immersed in insulating oil. Under what conditions shall a dry‑type transformer be immediately de‑energized? Fire occurs on the dry‑type transformer; the unit must be shut down immediately. Severe damage or discharge phenomena are observed on the transformer bushing. Stop operation immediately and arrange inspection by qualified professionals. Heavy smoke is emitted from the transformer. Abnormal, loud internal noise accompanied by explosion‑like sounds inside the transformer. Immediate shutdown is mandatory to prevent hazardous accidents. Abnormally high and continuously rising temperature under normal load and cooling conditions. When any of the above‑mentioned symptoms appear, the dry‑type transformer must be de‑energized right away. Continuing operation under such faults may cause personal injury as well as permanent damage to the transformer. These issues shall be addressed promptly. Exercise great caution when encountering any of the above‑mentioned conditions to avoid hazards. Yizheng Hongxin Transformer Co., Ltd. specializes in transformers, including dry‑type transformers, power transformers and oil‑immersed transformers. As a transformer manufacturer based in Jiangsu Province, our plant produces dry‑type transformers, power transformers and oil‑immersed transformers. The company is situated in the Economic Development Zone of Yizheng City, Jiangsu Province, within the Yangtze River Delta. It lies at the geographic heart of the Nanjing‑Zhenjiang‑Yangzhou Silver Triangle region. To its west is Nanjing, to its east Yangzhou; it borders the Yangtze River in the south and faces Zhenjiang across the river. Close to the Nantong‑Nanjing Expressway, it enjoys distinctly advantageous geographic conditions. Boasting years of experience in power transformer design and manufacturing, the company is equipped with advanced production facilities and mature manufacturing techniques. We deliver reliable‑quality products and maintain a solid market reputation. We look forward to cooperating with customers for mutual development and shared success!
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