Specifications of works on power transformers

Servicing and repair of power transformers:

  • testing and measuring disassembly

  • continuation and assembly

  • windings drying

  • defects inspection

  • review and repair of joints

  • isolation refreshment

  • High Voltage bushing insulator replacement

  • Low Voltage bushing insulator replacement

  • Buchholz relay replacement

  • oil level gauge and silicagel replacement

  • replacing contact thermometer

  • oil drying

  • oil replacement

  • welding the boiler

  • replacing seals on the boiler

  • replacing isolation lath

  • boiler anticorrosion protection

  • rewinding primary winding - by pole

  • rewinding secondary winding - by pole

  • final testing and test protocols

Rewinding the power transformer of an electric locomotive

Rewinding the power transformer of an electric locomotive with replacing and testing diaelectric strength of transformer oil