3500 kVA Dry Type Transformer for a Factory Project in the Korea
10-08 2024 | By:
Project Overview
Project time: September,2024 —October,2024
Products: Dry cast resin transformer
Transformer rated capacity:3500kVA
Quantity: 2 Sets
Installation: Indoor
Project Background:
Clients have this inquiry about for local market usage. In the narrow cell use.
Our engineer redesign the transformers according the actual cell size , to reach the height and width
Requirements. All neural all at upside. Low load loss and Low no-load loss , the efficiency of the
Transformer reach 99.31% at AN condition.
Clients at sight inspection routine tests and type test . All the testing data meet the designed requirement
And in good data condition. All test passed clients inspection. The good quality and credibility of the client’s praise.
Key Project Data
| Item | Specification |
|---|---|
| Project Location | Korea |
| Application | Local Factory Project |
| Transformer Type | Three-Phase Dry Type Transformer |
| Model | SCB-3500-22.9/0.38 |
| Rated Capacity | 3500 kVA |
| Primary Voltage | 22.9 kV |
| Secondary Voltage | 380 V |
| Phase | 3 Phase |
| Frequency | 60 Hz |
| Cooling Method | AN |
| Standard | IEC 60076 |
Customer Challenges
For a large factory, the transformer is a critical part of the electrical distribution system. The customer needed a transformer that could provide stable power for industrial loads while matching the local electrical conditions in the Philippines.
The main requirements included:
1. 22.9 kV Medium-Voltage Input
The factory’s incoming power supply required a transformer with a 22.9 kV primary voltage. The transformer therefore needed to be specifically designed for the local medium-voltage distribution system.
2. High-Capacity Industrial Power Supply
With a rated capacity of 3500 kVA, the transformer needed to support substantial factory loads and provide reliable power for production equipment and auxiliary systems.
3. 60 Hz Operating Frequency
Unlike many markets using 50 Hz systems, the Philippines uses a 60 Hz electrical frequency. The transformer therefore needed to be designed and tested for 60 Hz operation.
4. Compact and Low-Maintenance Design
For an industrial factory application, the customer required equipment that could operate reliably with limited routine maintenance.
The dry-type design also eliminates the need for transformer oil, making it suitable for indoor or industrial electrical installations where fire safety and environmental considerations are important.
ZTelec Yuguang’s Solution
To meet these requirements, ZTelec Yuguang supplied the SCB-3500-22.9/0.38 3500 kVA dry type transformer.
As the manufacturer, ZTelec Yuguang coordinated the transformer design around the customer’s actual operating conditions rather than simply supplying a standard off-the-shelf unit.
1. Customized 22.9 kV / 380 V Voltage Ratio
The transformer was configured with:
Primary: 22.9 kV
Secondary: 380 V
This allows the medium-voltage incoming supply to be stepped down to the low-voltage level required by the factory distribution system.
2. 3500 kVA Industrial Capacity
The 3500 kVA rated capacity provides a high-power solution for factory loads, including production machinery, motors, HVAC systems, lighting and other industrial electrical equipment.
The capacity was selected according to the project’s expected electrical demand and distribution requirements.
3. 60 Hz Design
Because the project is located in the Philippines, the transformer was designed for 60 Hz operation.
This is an important parameter when selecting a transformer for the Philippine market because transformer frequency directly affects the magnetic design and operating characteristics.
4. Air Natural Cooling
The transformer uses AN (Air Natural) cooling.
Heat generated during transformer operation is dissipated naturally through air circulation without forced cooling equipment.
This provides a relatively simple cooling configuration with fewer auxiliary components and reduced maintenance requirements.
5. IEC 60076 Compliance
The transformer was designed according to IEC 60076, the international standard series for power transformers.
Compliance with the applicable IEC requirements provides a recognized technical framework for transformer design, manufacturing and testing.
Technical Specifications
| Parameter | Technical Specification |
|---|---|
| Manufacturer | ZTelec Yuguang |
| Transformer Type | Dry Type Transformer |
| Model | SCB-3500-22.9/0.38 |
| Rated Capacity | 3500 kVA |
| Primary Voltage | 22.9 kV |
| Secondary Voltage | 380 V |
| Phase | Three Phase |
| Frequency | 60 Hz |
| Cooling Method | AN – Air Natural |
| Application | Factory Power Distribution |
| Installation | Industrial Factory |
| Standard | IEC 60076 |
| Country | Korea |
Why Choose ZTelec Yuguang as a Transformer Manufacturer?
For industrial transformer projects, selecting the manufacturer is as important as selecting the transformer specifications.
ZTelec Yuguang provides customized transformer manufacturing for industrial, commercial, utility and renewable-energy applications.
Our engineering team can configure transformers according to:
- Rated capacity
- Primary and secondary voltage
- 50 Hz or 60 Hz frequency
- Dry-type or oil-immersed design
- Cooling requirements
- Installation environment
- Applicable IEC standards
- Customer technical specifications
For overseas projects, we can also support customers with technical drawings, transformer specifications, factory testing and export documentation.
Application of the 3500 kVA Dry Type Transformer
The SCB-3500-22.9/0.38 transformer is suitable for applications requiring medium-voltage to low-voltage power conversion, including:
- Manufacturing factories
- Industrial plants
- Commercial facilities
- Production lines
- Industrial parks
- Mining facilities
- Data and infrastructure facilities
- Renewable-energy projects
For this Philippines project, the transformer serves as an important part of the factory’s electrical power distribution system.
Project Result
By combining the required 3500 kVA capacity, 22.9 kV/380 V voltage ratio, 60 Hz frequency and AN cooling configuration, ZTelec Yuguang provided a transformer solution matched to the customer’s factory application.
The project demonstrates ZTelec Yuguang’s capability to manufacture medium-voltage dry type transformers for international industrial projects, including customized voltage and frequency requirements.
Conclusion
This 3500 kVA 22.9/0.38 kV dry type transformer project in the Korea demonstrates how ZTelec Yuguang provides customized transformer solutions for industrial customers.
From electrical parameter confirmation and transformer design to manufacturing and testing, ZTelec Yuguang supports customers with a complete factory-direct transformer supply solution.
Looking for a 3500 kVA dry type transformer for a factory, industrial plant or power distribution project? Contact ZTelec Yuguang for a customized technical proposal and quotation.
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