American-type Pad-Mounted Prefabricated Substation

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  • American-type Pad-Mounted Prefabricated Substation

American-type Pad-Mounted Prefabricated Substation

American-type Pad-Mounted Prefabricated Substation is a compact outdoor power distribution solution integrating an oil immersed transformer, high voltage switching protection, low voltage distribution, and optional monitoring systems into one prefabricated unit.
As a practical solution within Substations, this Pad-Mounted Substation is widely used in urban distribution networks, industrial facilities, renewable energy projects, commercial buildings, and infrastructure applications requiring compact layout, reliable power supply, and simplified installation.
The system typically uses a fully sealed oil immersed transformer as the core component, combined with high voltage cable interfaces, load switches, fuse protection, low voltage switchgear, and optional communication functions.
This American-type Substation can be customized according to project requirements, including transformer capacity, voltage level, protection configuration, low voltage distribution, monitoring system, enclosure design, and environmental adaptation.

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  • Product Details
  • FAQ
Parameter
Specification
Product Type
American-type Pad-Mounted Prefabricated Substation
Application Category
Substations
Rated Capacity
160 kVA–3300 kVA
High Voltage Side
10/11/13.8/15/20/22/24.9/33 kV optional
Low Voltage Side
120/240, 220/380, 230/400, 277/480, 400/415 V optional
Transformer Type
Fully sealed oil immersed transformer
Core Material
Silicon steel core or amorphous alloy core optional
Winding Material
Copper or aluminum
High Voltage Protection
Load switch, fuse protection, lightning arrester interface
Low Voltage Unit
Main breaker, feeders, metering, compensation optional
Monitoring Options
RTU, SCADA interface, temperature monitoring, remote communication
Environmental Design
High temperature, humidity, desert, coastal, high altitude, anti-condensation
Standards
IEC, IEEE/ANSI, GB/T or customer specifications

1. What is an American-type Pad-Mounted Prefabricated Substation?
It is a compact outdoor Pad-Mounted Substation that integrates an oil immersed transformer, high voltage protection, and low voltage distribution equipment into one prefabricated unit.
It is commonly used for urban distribution, commercial buildings, industrial facilities, and renewable energy projects.

2. What is the difference between American-type and European-type substations?
American-type Substations usually integrate transformer, switching, and protection functions into a compact outdoor enclosure.
European-type substations generally use separate functional compartments for high voltage switchgear, transformer, and low voltage distribution.
Selection depends on local standards, installation requirements, and project design.

3. Can the substation support 60 Hz and North American voltage systems?
Yes.
The system can be customized for 60 Hz and voltage configurations such as 120/240 V and 277/480 V according to project requirements.

4. Can it be used for solar, wind, and energy storage projects?
Yes.
The Prefabricated Substation can be applied for renewable energy distribution and auxiliary power systems after confirming load characteristics, protection requirements, communication interfaces, and grid connection conditions.

5. Can it operate in coastal or desert environments?
Yes.
Customized solutions can include corrosion protection, enhanced sealing, cooling optimization, dust protection, and anti-condensation design.

  • Product Features

Integrated Power Distribution Design
The Pad-Mounted Substation combines transformer, high voltage protection, and low voltage distribution functions into a compact outdoor unit.
Factory integration reduces onsite installation work and simplifies coordination between electrical equipment, civil foundation, and cable connections.
This integrated design makes the Prefabricated Substation suitable for projects requiring faster installation and simplified system coordination.

Compact Structure and Space Saving
The American-type Substation adopts a compact ground-mounted design, reducing installation space compared with traditional substations.
It is suitable for residential areas, commercial projects, industrial parks, renewable energy plants, and other applications requiring efficient land utilization.

Reliable Transformer and Protection Coordination
The transformer, load switch, fuse protection, and lightning protection system are designed according to:
Transformer rated capacity
Short circuit level
Load characteristics
Protection coordination requirements
This ensures reliable operation under different distribution conditions.

Outdoor Environmental Adaptability
The enclosure and internal components of the Prefabricated Substation can be customized for:
High temperature environments
Coastal salt fog areas
Desert conditions
High humidity locations
Dusty industrial environments
High altitude installations
Solutions may include corrosion protection, sealing improvement, ventilation optimization, and anti-condensation design.

  • Application Fields
Application
Typical Uses
Customers
Utility Distribution Networks
Urban power distribution, grid expansion, feeder systems
Utilities, EPC contractors
Residential & Commercial Projects
Communities, shopping centers, office buildings
Developers, electrical contractors
Industrial Facilities
Factories, mining sites, industrial parks
Industrial companies, system integrators
Renewable Energy Projects
Solar farms, wind power plants, energy storage systems
Renewable energy EPC companies
Infrastructure Projects
Airports, ports, rail transit, municipal facilities
Infrastructure contractors
OEM & Distribution Business
Standardized products and customized solutions
Distributors, equipment manufacturers

  • OEM·ODM
Customization Module
Available Options
Electrical Design
Capacity, voltage level, frequency, vector group, impedance, tap range, losses
High Voltage System
Ring main or radial connection, load switch, fuse, lightning arrester
Transformer Configuration
Silicon steel or amorphous core, copper/aluminum winding, transformer accessories
Low Voltage System
Main breaker, feeders, metering, compensation, auxiliary power
Monitoring System
RTU, SCADA, remote communication, online monitoring
Mechanical Design
Enclosure size, cable entry, foundation, lifting points, ventilation
Environmental Adaptation
High temperature, corrosion protection, humidity, dust, altitude
Branding & Documents
OEM nameplate, labels, drawings, manuals, packaging documents

  • Why Choose Us

Complete Substation and Transformer Capability
Jiangsu Xinxin Electric provides integrated power distribution solutions including:
Oil Immersed Transformers
Dry Type Transformers
Amorphous Alloy Transformers
Box Type Substations
American-type Pad-Mounted Prefabricated Substations
This enables EPC contractors and system integrators to coordinate transformer, substation, and distribution equipment requirements through one supplier.

Controlled Manufacturing Process
Production is managed through:
Technical specification review
Incoming material inspection
Transformer manufacturing
Switchgear assembly
Protection configuration verification
Electrical testing
Final inspection
Key components including transformers, switches, cables, protection devices, and enclosure materials are controlled according to project requirements.

International Project Support
Jiangsu Xinxin Electric can provide:
Technical data sheets
Single line diagrams
Assembly drawings
Wiring diagrams
Test reports
Operation manuals
Packing documents
Documentation can be prepared according to IEC, IEEE/ANSI, GB/T, or customer project requirements.

Quality Control Process
Contract & Technical Review
Confirm voltage, capacity, protection scheme, installation environment, standards, interfaces, and acceptance requirements.
Incoming Material Inspection
Check transformer materials, switches, protection devices, enclosure materials, and accessories.
Manufacturing Inspection
Control transformer assembly, oil sealing, enclosure fabrication, wiring, grounding, and protection installation.
System Verification
Verify switch operation, protection coordination, auxiliary circuits, communication functions, and monitoring interfaces.
Final Testing & Delivery Approval
Complete electrical tests, functional checks, documentation review, labeling, packaging, and shipment approval.

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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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