Used SEO 2,500 KVA, 15/400 V Transformer

1. Product Description

The 2,500 KVA SEO transformer, with voltages of 15 kV (medium voltage) and 400 V (low voltage), is an essential device for controlling and distributing electrical power. This used transformer, overhauled and fully tested, comes with a one-year warranty and offers a robust solution for industrial and commercial applications.

2. Technical Specifications

• Make and Model: SEO 2,500 KVA
• Year of Construction: (Not specified, but inspected and guaranteed)
• Power: 2,500 KVA
• Primary Voltage (MT): 15 kV
• Secondary Voltage (LV): 400 V
• Insulation Type: Mineral oil or resin (specific to the transformers used, insulation may vary)

3. Components and Structure

• Nucleus:

  • Material: Constructed of silicon steel fins to reduce hysteresis and eddy current losses.
  • Design: Sandwich design improves efficiency and reduces noise.

• Coils:

  • Material: Windings made of copper or aluminum, covered with high-resistance insulation.
  • Configuration: Separation between primary and secondary coils to minimize losses and optimize performance.

• Tank and Insulation:

  • Insulation Type: Depending on the configuration, it may be mineral oil or resin. Mineral oil is used in older transformers and provides both insulation and cooling. Resin offers enhanced protection against humidity and weather.

• Cooling System:

  • Mineral Oil: Uses oil for cooling and insulation.
  • Resin: If resin, the cooling system is built-in and does not require oil.

4. Dimensions and Weight

• Dimensions: 2,500 KVA transformers are generally large. Dimensions can be approximately 4 x 3 x 4 meters, but it's best to consult the manufacturer's exact specifications.
• Weight: Approximately 6,000 - 8,000 kg, depending on construction and materials used.

5. Mechanical Characteristics

• Efficiency: High efficiency thanks to high-quality materials and advanced design.
• Reliability: Rugged and designed for heavy-duty use in industrial and commercial environments.
• Protection: Good protection thanks to high-quality insulation and transformer construction.

6. Procedure for Use

1. Installation:

   • Placement: Place the transformer on a stable base, considering space for ventilation and maintenance.
   • Connection: Connect the primary and secondary terminals following the manufacturer's specifications and making sure the connections are secure and correct.

2. Power On and Monitoring:

   • Power on: Follow the detailed startup procedures, monitoring operating parameters such as voltage and current.
   • Monitoring: Regularly check temperature and operating conditions to ensure optimal operation.

3. Maintenance:

   • Regular Inspections: Perform periodic checks and verify the condition of the components.
   • Cleaning: Keep the surrounding area clean and free of debris to avoid operational problems.

7. Matching Accessories

• Monitoring Devices: Temperature sensors and measuring instruments to monitor performance.
• Additional Cooling Systems: If necessary, install fans or other cooling systems for high-load environments.

8. Mathematical Formulas for Optimal Usage Parameters

• Apparent Power (S):

  $$S$$

  Where PP $P$ is the active power and QQ $Q$ is the reactive power.

• Transformer Efficiency:

  $$\text{Efficiency}$$

• Transformer Losses:

  $$\text{Total Losses}$$

9. Materials and Applications

• Workable Materials: Suitable for resistive and inductive loads in industrial and commercial environments.
• Applications: Industrial plants, commercial buildings, power transformation and distribution stations.

10. Maintenance and Verification of Used Goods

• Maintenance:

  • Periodic Checks: Perform regular checks and insulation tests to ensure optimal operation.
  • Cleaning: Remove dust and debris buildup to keep the transformer in good condition.

• Used Goods Check:

  • General Condition: Check for signs of wear and physical damage. Check the quality of the insulation and connections.
  • Operation Test: Make sure the transformer operates within specifications and without any abnormalities.

11. Areas of Use

• Industrial: For large manufacturing plants and industrial operations.
• Commercial: To power commercial buildings and distribution centers.
• Energy and Infrastructure: Used in transformer stations for large-scale power distribution.

12. Advantages of Buying Used

• Lower Cost: Greater savings compared to new transformers.
• Reliability: When properly maintained, used transformers can deliver excellent performance and a long life.
• Immediate Availability: Faster availability than purchasing new units.

Conclusion

The 2,500 KVA SEO transformer, with voltages of 15/400 V, represents a robust and efficient solution for your energy needs. With solid construction and guaranteed quality through overhaul and testing, it is a reliable choice for industrial and commercial applications. Purchasing a reconditioned used transformer can offer significant cost advantages while maintaining excellent reliability and performance.

See label and photo for more information.