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Electrical Engineering

High-tension electrical transformers are critical components in the electrical power distribution and transmission systems. They are responsible for transforming electrical energy between different voltage levels, allowing for efficient transmission and distribution of electricity.


To ensure the reliable operation of high-tension transformers, various services are required:

Installation and Commissioning:
Proper installation of high-tension transformers is crucial. This includes site preparation, transportation, and electrical connection. Commissioning involves verifying that the transformer operates as designed.
Routine Maintenance:
Regular inspections, cleaning, and maintenance are essential to prevent issues and prolong the transformer's lifespan. Maintenance includes checking for loose connections, oil level and quality, and ensuring the cooling system functions correctly.
Oil Testing and Analysis:
High-tension transformers often use oil for cooling and insulation. Regular oil testing and analysis can identify potential issues, such as overheating or contamination, allowing for timely corrective action.
Diagnostics and Condition Assessment:
Specialized diagnostic tests, such as insulation resistance testing, winding resistance tests, and partial discharge measurements, are conducted to assess the overall condition of the transformer.
Repair and Refurbishment:
When issues are identified, transformers may require repair or refurbishment. This can involve replacing faulty components, rewinding coils, or repairing damaged insulation.
Oil Filtration and Purification:
Contaminated transformer oil can significantly affect performance. Filtration and purification systems are used to remove impurities and restore the oil's quality.
Protection and Control Upgrades:
Upgrading the protection and control systems can enhance the transformer's reliability and safety. Modern digital protection systems can provide more accurate and responsive protection.
Transformer Testing:
Routine and periodic testing of the transformer under various load conditions and voltage levels is necessary to ensure it meets performance standards.
On-site Repairs:
Some transformer repairs may need to be conducted on-site, especially if the transformer is too large to transport easily.
Oil Reclamation and Recycling:
When the transformer oil reaches the end of its useful life, it should be reclaimed or recycled in an environmentally responsible manner.
Emergency Services:
In the event of a transformer failure or emergency, service providers may need to respond quickly to restore power supply and minimize downtime.
Upgrades for Efficiency and Safety:
Retrofitting older transformers with more energy-efficient components can help reduce energy losses and enhance safety features.

High-tension electrical transformers are critical assets, and their proper maintenance and service are essential for the reliable and continuous supply of electricity. Regular servicing and monitoring are key to preventing breakdowns and ensuring the longevity of these valuable components in the electrical grid. Qualified and experienced professionals or service providers typically perform these tasks to meet safety and operational standards.