Repair and Refurbishment

Retrofit and Modification Services

Given the high value of transformer assets, refurbishment and modernization are often preferred alternatives to replacement. Arya Transfo Services Company provides refurbishment, retrofit, and upgrade services for distribution, medium-power, and power transformers.

Based on customer requirements and available technical documentation, Arya Transfo Services Company evaluates the feasibility of technical and structural modifications to existing transformers. All proposed changes are reviewed to ensure compliance with operational and technical requirements.

Typical retrofit and modification services include:

  • Vector Group Modification
  • High-Voltage and Low-Voltage Rating Modifications
  • Bushing Replacement and Upgrades
  • Conservator Redesign and Replacement
  • Air Cell Design and Installation
  • Transformer Cover and Cable Box Redesign and Replacement
  • Control Cabinet Modernization and Modification
  • Other Transformer Design Upgrades and Engineering Modifications

These services help adapt transformers to changing operating requirements, improve reliability, and extend equipment service life.

Major and Minor Repair Services

Arya Transfo Services Company provides major and minor repair services for distribution, sub-transmission, power, and industrial transformers. These services are supported by advanced workshop and laboratory facilities, as well as an authorized service network across the country.

Available capabilities include:

  • Skilled Service Personnel
  • Transformer Repair Facilities
  • Coil Winding and Pressing Equipment
  • Active Part Drying Ovens
  • Vacuum Processing and Oil Treatment Systems
  • Assembly and Disassembly Equipment
  • High-Voltage Testing Laboratory
  • Oil Testing Laboratory

Based on technical assessment and fault analysis, repair activities can be performed at Arya Transfo Services Company repair facilities, authorized service centers, or, where feasible, at the transformer installation site.

Upon completion of repair work, the transformer undergoes the required tests in accordance with IEC standards. Test reports and relevant documentation are provided prior to returning the unit to service.