1. Product Description

The ABB 800 kVA transformer is medium voltage equipment designed for the conversion of electrical energy from high voltages to usable voltages for industrial and commercial applications. Manufactured in 2000, this used transformer has a power rating of 800 kVA and a frequency of 50 Hz. Weighing 2310 kg, it is a robust and reliable choice for numerous applications.

2. Materials and Components

• Nucleus:

  • Material: High quality silicon steel, designed to minimize hysteresis and eddy current losses. The core is composed of thin steel sheets stacked and treated to improve magnetic efficiency.
  • Construction: The core is wrapped with copper or aluminum windings, mounted to minimize energy losses and ensure uniform distribution of the magnetic field.

• Windings:

  • Material: Copper or aluminum, with copper offering greater electrical conductivity. The windings are designed to handle current and voltage with high efficiency.
  • Construction: The primary and secondary windings are designed to ensure excellent performance and reduce losses.

• Insulation:

  • Material: Mineral oil or resin. Mineral oil is used for cooling and insulation, while resin is more environmentally friendly and resistant to harsh environments.
  • Cooling System: Cooling can be provided by an oil circulation system or natural cooling, depending on the specific design.

3. Dimensions and Weight

• Nominal power: 800 kVA
• Frequency: 50Hz
• Year of Construction: 2000
• Weight: 2310 kg
• Dimensions: Dimensions vary depending on the specific configuration, but generally, for a transformer of this size, an overall size of approximately 1.5 x 2 x 2 meters can be estimated.

4. Mechanical Characteristics

• Efficiency: High, thanks to the use of quality materials and a design that minimizes energy losses.
• Thermal Stability: The transformer is designed to operate at high temperatures without compromising safety or efficiency, thanks to cooling and insulation systems.
• Insulation: Excellent, to guarantee the safety and reliability of the transformer even in difficult operating conditions.

5. Usage Procedure

1. Installation:

   • Place the transformer on a solid and well-leveled base.
   • Make sure the transformer is well ventilated and accessible for maintenance.

2. Connection:

   • Connect the cables to the high and low voltage connections, following the connection specifications provided by the manufacturer.
   • Check all connections to ensure they are secure and free from signs of wear.

3. Switching on and Monitoring:

   • Turn on the transformer and monitor operating parameters such as voltage, current and temperature.
   • Perform periodic checks to ensure that the transformer is functioning properly.

6. Matching accessories

• Monitoring Devices: Temperature sensors, load indicators and warning systems.
• Additional Cooling Systems: Fans or water cooling systems for particularly hot environments.
• Protection Devices: Circuit breakers and fuses to protect the transformer from overloads and short circuits.

7. Mathematical formulas

• Apparent Power: S=P2+Q2S = \sqrt{P^2 + Q^2} $$S$$ $$=$$ P 2 + Q 2 ​Where PP $P$ is the active power and QQ $Q$ is the reactive power.
• Efficiency: Efficiency=Output PowerInput Power×100%\text{Efficiency} = \frac{\text{Output Power}}{\text{Input Power}} \times 100 \% $$\text{Efficiency}$$ $$=$$ Input Power Input Power Output × $$100\%$$
• Losses in the Core: Calculable through analysis of eddy currents and hysteresis losses.

8. Materials He Can Work with

• Resistive Loads: For example, equipment that requires continuous power.
• Inductive Loads: Electric motors and other devices involving variable current flows.
• Capacitive Loads: It can also handle capacitive loads, but it is important to consider the technical specifications to avoid instability.

9. Maintenance

• Regular Inspections: Check oil level, condition of core and windings, and monitor for signs of wear or damage.
• Cleaning: Keep the cab and components clean and free of dust and debris.
• Safety Checks: Ensure that all protective devices are functioning and that the transformer operates within the specified limits.

10. Verification of Good Used

• General Condition: Visually examine the transformer for signs of damage or corrosion. Check the condition of the insulation and look for any leaks.
• Functional Tests: Carry out operational tests to confirm that all parameters are correct.
• Documentation: Check maintenance documentation and certifications of compliance.

11. Sectors of Use

• Industry: Used to power industrial machinery and equipment.
• Commercial: For applications in commercial buildings and distribution centers.
• Public Sector: Provides energy to infrastructure and public services.

12. Advantages of Buying Used

• Lower Cost: Purchasing a used transformer can result in significant savings compared to a new one.
• Reliability: If well maintained, a used transformer can offer reliable and long-lasting performance.
• Immediate Availability: Used transformers are often available immediately, reducing waiting times.

In summary, the 2000 ABB 800 kVA transformer is a solid and versatile piece of equipment, ideal for multiple industrial and commercial applications. With proper maintenance and testing, a used transformer like this can offer excellent value and reliability. If you have further questions or need additional details, I am available!