Used Transformer 2500 KVA, 20/400 V

1. Product Description

The 2500 KVA transformer, with voltages of 20 kV and 400 V, is an essential power management device in large-scale industrial and commercial applications. This used transformer is designed to convert high medium voltage (MV) voltages to low low voltage (LV) voltages, making it suitable for a wide range of applications.

2. Technical Specifications

• Brand and Model: (Not specified in detail, therefore generalized for transformers with these characteristics)
• Year of Construction: (Year not specified, but recent construction is assumed if in good condition)
• Power: 2500 KVA
• Primary Voltage (MT): 20 kV
• Secondary Voltage (LV): 400 V
• Insulation Type: (Specific insulation details not provided, but can typically be mineral oil or resin)

3. Components and Structure

• Nucleus:

  • Material: Made of silicon steel fins to reduce hysteresis and eddy current losses.
  • Construction: Sandwich design with overlapping slats to improve efficiency and reduce noise.

• Coils:

  • Material: Copper or aluminum windings, covered with high-resistance insulation.
  • Configuration: Primary and secondary coils wound on separate cores to reduce losses and improve efficiency.

• Tank and Insulation:

  • Insulation Type: Can be mineral oil or resin. Mineral oil is common in older transformers and provides cooling and insulation. Resin is more modern and offers better protection against environmental contamination.

• Cooling System:

  • Mineral Oil: The cooling system uses oil to dissipate the heat generated during operation.
  • Resin: For recent models, cooling can occur through solidified resin, which offers excellent protection against humidity.

4. Dimensions and Weight

• Dimensions: 2500 KVA transformers are generally of significant size, typically 3 x 3 x 3.5 metres, but exact dimensions can vary.
• Weight: Approximately 5,000 - 6,000 kg, depending on construction and materials used.

5. Mechanical Characteristics

• Efficiency: High operating efficiency with low losses thanks to advanced construction and high-quality materials.
• Reliability: Rugged and designed to operate in demanding industrial and commercial environments.
• Protection: High quality insulation to ensure the safety and durability of the transformer.

6. Procedure for Use

1. Installation:

   • Positioning: Install the transformer on a stable and protected base. Ensure there is sufficient space for ventilation and maintenance.
   • Connection: Connect the high voltage (20 kV) and low voltage (400 V) terminals according to the manufacturer's specifications and make sure all connections are correct.

2. Power On and Monitoring:

   • Power On: Follow specific startup procedures and monitor operating parameters such as voltage and current.
   • Monitoring: Regularly check temperature and operating conditions to ensure the transformer is functioning properly.

3. Maintenance:

   • Regular Inspections: Check the condition of the transformer and verify the integrity of the components.
   • Cleaning: Keep the surrounding area clean and free of debris to avoid operational problems.

7. Matching Accessories

• Monitoring Devices: Temperature sensors, measuring instruments to monitor performance, and alert systems for abnormal conditions.
• 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, large 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: Inspect 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 2500 KVA used transformer, with voltages of 20/400 V, is a powerful and reliable solution for your energy needs. With its sturdy construction and high-quality materials, it offers a long life and excellent performance. Purchasing a used transformer can be a cost-effective choice, with the guarantee of solid and reliable performance.

Transport included.

Additional services are offered upon request for a fee:

- Inspection
- Testing
- 1 year warranty