OVERHAULS and SERVICES

Repairs and upgrades of transformers with power ratings of up to 80 MVA

The range of repair and maintenance services includes:

• assembly and disassembly at the work station and transport to the facility,
• internal inspection of the active part of the transformer,
• repair or replacement of the core,
• rewinding windings,
• replacement of the active part with a new one with the possibility of an upgrade (including change of the rated voltage levels, short circuit voltage, connection group)
• increasing the rated power,
• vacuum drying of windings and active parts,
• replacement of the on-load tap changers,
• treatment, replacement and disposal of transformer oil,
• leakage repair, including replacement of the main seal,
• modernization of hardware:
  • replacement of radiators and fans,
  • modernization of radiator valves,
  • replacement of electrical installation,
  • installation of ball valves, magnetic oil level indicators, safety valves
  • installation of control cabinets
• sandblasting and painting of tanks and radiators with polyurethane and chemically hardening paints,
• post-repair tests and final measurements,
• possibility of renting a replacement transformer for the duration of repair (with a power rating of 16 MVA)
• inspections and maintenance of transformers at the work station
• other services agreed upon individually with the customer

In addition, the repair service of Fabryka Transformatorów performs post-assembly, post-failure and periodic measurements of transformers with power ratings of up to 80 MVA and voltage of 121 kV.