Mexico
13.8 kV Oil-Immersed Transformer for Renewable Energy Application
Reliable Medium-Voltage Power Transformation for Renewable Energy Facilities
01. Project Information
| Item | Project Details |
| Country | Mexico |
| Industry | Renewable Energy / Industrial Power |
| Application | Renewable Energy Facility |
| Main Product | Oil-Immersed Transformer |
| Primary Voltage | 13.8kV |
| Secondary Voltage | 480V |
| Frequency | 60Hz |
| Capacity | 1000–2500kVA* |
| Installation | Outdoor |
| System | Medium-Voltage Power Distribution |
| Supplier | LBAJI Electric Group |
Final transformer capacity and configuration are determined according to the approved project technical specification.
02. Project Overview
A renewable-energy-related facility in Mexico required a reliable medium-voltage transformer solution to support the connection between its electrical supply system and the downstream low-voltage distribution network.
The project required transformation from 13.8 kV medium voltage to 480 V low voltage, with the transformer serving as an important component of the facility’s electrical distribution system.
Based on the project’s electrical requirements, installation environment, and system integration needs, LBAJI supplied an oil-immersed transformer solution designed for reliable medium-voltage power transformation and distribution.
The solution was developed with a focus on:
- Reliable voltage transformation
- Stable electrical distribution
- Outdoor installation
- Long-term operational reliability
- Easy integration with existing electrical equipment
- Efficient project delivery and commissioning
03. Project Background
Mexico has continued to develop renewable energy and industrial power infrastructure, creating increasing demand for reliable medium-voltage electrical distribution equipment.
For this project, the customer required a transformer capable of receiving power from the 13.8 kV medium-voltage system and transforming it to 480 V for downstream electrical distribution.
The transformer needed to operate reliably in an outdoor environment while maintaining compatibility with the customer’s existing medium-voltage and low-voltage electrical systems.
In addition to the transformer itself, the project required supporting electrical components and professional technical coordination throughout manufacturing, testing, packing, shipment, and delivery.
LBAJI provided a project-oriented solution covering the complete supply process from technical confirmation through factory testing and international shipment.
04. Project Challenges
Medium-Voltage Transformation
The project required stable transformation from 13.8 kV to 480 V, making transformer performance critical to the overall power distribution system.
Outdoor Installation
The transformer was intended for outdoor application and therefore needed to be configured according to the project’s environmental and installation requirements.
Reliable Power Distribution
The equipment needed to provide dependable power conversion for downstream electrical equipment and facility loads.
Existing System Integration
The transformer needed to work together with the project’s medium-voltage connection equipment, protection system, low-voltage distribution system, and monitoring equipment.
Long-Term Operation
The renewable energy facility required electrical equipment capable of supporting continuous operation while minimizing unnecessary maintenance and downtime.
05. LBAJI Solution
LBAJI supplied an oil-immersed transformer solution for a 13.8kV/480V medium-voltage distribution system.
The solution was developed around the customer’s electrical requirements and included the transformer together with supporting connection, protection, distribution, and monitoring components.
Solution Highlights
13.8 kV Medium-Voltage Input
Designed for connection to the project’s medium-voltage distribution system.
480V Low-Voltage Output
Provides suitable low-voltage power for downstream distribution and facility loads.
Oil-Immersed Transformer Design
Provides a mature and widely adopted solution for medium-voltage power distribution applications.
Outdoor Installation
The transformer configuration can be adapted to outdoor project requirements according to the approved technical specification.
Integrated Electrical Interface
Supporting connection and protection components facilitate integration with the existing electrical system.
06. Project Technical Data
| Technical Parameter | Project Specification |
| Transformer Type | Oil-Immersed Transformer |
| Application | Renewable Energy / Industrial Power Distribution |
| Primary Voltage | 13.8kV |
| Secondary Voltage | 480V |
| Rated Frequency | 60Hz |
| Capacity | 1000–2500kVA* |
| Installation | Outdoor |
| Cooling | Oil-Immersed Cooling |
| System Voltage | Medium Voltage |
| LV Distribution | 480V |
| Application | Renewable Energy Facility |
Additional Technical Parameters
The following parameters are finalized according to the approved project design and customer requirements:
- Rated capacity
- Transformer impedance
- Vector group
- Tap-changing configuration
- Insulation level
- Temperature rise
- No-load loss
- Load loss
- Protection configuration
- Bushing configuration
- Monitoring accessories
- Enclosure and installation configuration
*For an actual project page, LBAJI recommends replacing the capacity range with the exact supplied transformer rating once confirmed.
07. Products Supplied
LBAJI provided the following equipment and supporting components for the project:
Main Equipment
- Oil-Immersed Transformer
- Medium-Voltage Connection Equipment
- Low-Voltage Distribution Interface
Protection & Monitoring
- Transformer Protection Accessories
- Monitoring Equipment
- Supporting Electrical Accessories
The final equipment configuration was coordinated according to the project’s electrical system requirements.
08. Electrical System Configuration
The basic electrical configuration can be represented as:
13.8 kV MV SYSTEM
│
▼
MV SWITCHGEAR / PROTECTION
│
▼
┌────────────────────────┐
│ LBAJI OIL-IMMERSED │
│ TRANSFORMER │
│ 13.8kV / 480V │
└────────────────────────┘
│
▼
480V LV DISTRIBUTION
│
▼
RENEWABLE ENERGY LOADS
13.8 kV Medium-Voltage System
↓
Medium-Voltage Connection & Protection
↓
LBAJI Oil-Immersed Transformer
↓
13.8 kV → 480 V Voltage Transformation
↓
480V Low-Voltage Distribution System
↓
Renewable Energy Facility Loads
The transformer serves as the key power conversion point between the medium-voltage electrical system and the downstream low-voltage distribution network.
09. Transformer Manufacturing Process
LBAJI followed a structured production and quality-control process throughout the manufacturing of the transformer.
Step 1 — Engineering Design
The technical team reviewed the project’s voltage level, capacity requirements, frequency, installation environment, and system interface requirements.
Step 2 — Raw Material Preparation
Core materials, winding materials, insulation components, transformer oil, tank materials, bushings, and supporting components were prepared according to the approved production requirements.
Step 3 — Core Manufacturing
Electrical steel was processed and assembled to form the transformer magnetic core.
Step 4 — Winding Manufacturing
The high-voltage and low-voltage windings were manufactured according to the approved electrical and insulation design.
Step 5 — Core & Coil Assembly
The transformer core and windings were assembled together with insulation structures and other internal components.
Step 6 — Tank Assembly
The active part was installed into the transformer tank, followed by installation of bushings, accessories, monitoring devices, and other external components.
Step 7 — Oil Processing
Transformer oil was processed and filled according to the approved manufacturing procedure.
Step 8 — Factory Testing
The completed transformer underwent factory inspection and electrical testing according to the applicable project requirements.
Step 9 — Final Inspection
The transformer was inspected before shipment to verify its appearance, accessories, electrical connections, and overall configuration.
10. Quality Control
Quality control was implemented throughout the manufacturing process.
LBAJI’s inspection process covers key production stages, including:
- Raw material inspection
- Core manufacturing inspection
- Winding inspection
- Insulation inspection
- Assembly inspection
- Oil processing
- Electrical testing
- Appearance inspection
- Accessory inspection
- Final factory inspection
Before shipment, the completed transformer was tested and inspected according to the approved project requirements and applicable technical standards.
11. International Shipment
After factory testing and final inspection, the transformer was prepared for international shipment to Mexico.
LBAJI’s export process included:
- Equipment inspection
- Protective packaging
- Moisture protection
- Loading preparation
- Container loading
- Shipping documentation
- International transportation coordination
Professional export preparation helps protect electrical equipment during long-distance transportation and facilitates smoother project delivery.
12. Customer Benefits
Reliable Power Conversion
The 13.8kV/480V transformer provides reliable medium-to-low voltage transformation for the facility’s electrical distribution system.
Stable Electrical Distribution
The transformer supports stable downstream power distribution for electrical equipment and facility loads.
Outdoor Application
The transformer solution can be configured for outdoor installation according to the project’s environmental and installation requirements.
System Compatibility
The equipment was designed around the project’s medium-voltage and low-voltage system requirements, supporting easier integration with existing electrical infrastructure.
Long-Term Operational Reliability
The oil-immersed transformer design provides a mature solution for medium-voltage distribution applications and supports reliable long-term operation when properly installed and maintained.
Professional Project Support
LBAJI supported the project through technical coordination, manufacturing, factory testing, export packing, shipment, and delivery.
13. Why LBAJI?
LBAJI Electric Group specializes in the design and manufacture of electrical power equipment for international markets.
Our product portfolio includes:
- Oil-Immersed Transformers
- Dry-Type Transformers
- Photovoltaic Transformers
- Box-Type Substations
- High-Voltage Switchgear
- Low-Voltage Switchgear
- Ring Main Units
- Gas-Insulated Switchgear
- Photovoltaic Distribution Equipment
- Complete Power Distribution Solutions
For international customers, LBAJI provides project support from:
Technical Consultation → Engineering → Manufacturing → Testing → Export → Delivery
Our solutions are designed for applications including:
- Solar Power
- Wind Power
- Renewable Energy
- Industrial Plants
- Utility Power Distribution
- Commercial Buildings
- Infrastructure
- Data Centers
- Mining
14. Project Outcome
The Mexico project demonstrates LBAJI’s ability to provide 13.8 kV oil-immersed transformer solutions for renewable energy and industrial power distribution applications.
The supplied solution addressed the project’s key requirements for:
Medium-Voltage Transformation + Stable Power Distribution + Outdoor Installation + System Integration + Reliable Operation
By combining electrical engineering, controlled manufacturing, factory testing, export logistics, and international project support, LBAJI provided a practical transformer solution for the customer’s renewable energy power distribution requirements.
15. Project FAQ
What type of transformer was supplied for the Mexico project?
LBAJI supplied an oil-immersed transformer for a medium-voltage renewable energy power distribution application.
What is the voltage rating of the transformer?
The project uses a 13.8 kV primary voltage and 480 V secondary voltage configuration.
What frequency does the transformer use?
The project electrical system operates at 60 Hz, which is commonly used in Mexico.
What is the transformer capacity?
The current project specification indicates a capacity range of 1000–2500 kVA. The final capacity should be updated to the exact supplied rating once confirmed.
Is the transformer suitable for outdoor installation?
Yes. The transformer solution is intended for outdoor installation and can be configured according to the project’s environmental and installation requirements.
What industries can use this type of transformer?
13.8 kV oil-immersed transformers can be used in renewable energy facilities, solar power projects, wind power projects, industrial plants, commercial facilities, infrastructure, and utility distribution systems.
Can LBAJI customize the transformer?
Yes. Transformer specifications can be configured according to project requirements, including voltage, capacity, frequency, impedance, vector group, insulation level, tap configuration, accessories, and installation conditions.
Can LBAJI provide supporting electrical equipment?
Yes. Depending on the project requirements, LBAJI can provide transformers together with medium-voltage switchgear, low-voltage switchgear, box-type substations, protection equipment, monitoring equipment, and other power distribution equipment.
Does LBAJI support international delivery?
Yes. LBAJI supports international project supply, including technical coordination, manufacturing, factory testing, export packing, container loading, and shipment coordination.
Can LBAJI provide transformer solutions for renewable energy projects?
Yes. LBAJI provides transformer and complete power distribution solutions for solar power, wind power, renewable energy, industrial, utility, and infrastructure projects.
16. Related Products
Oil-Immersed Transformer
Designed for medium- and high-voltage power transformation and distribution applications.
Dry-Type Transformer
Suitable for indoor installations, commercial buildings, industrial facilities, and applications requiring reduced fire risk.
Box-Type Substation
Integrates transformers, medium-voltage switchgear, and low-voltage distribution equipment into a compact prefabricated solution.
Medium-Voltage Switchgear
Provides switching, protection, control, and distribution functions for medium-voltage electrical systems.