We specialise in the repair of MV transformers of domestic and foreign manufacture:

  • oil types,
  • dry types,
  • of a special design/construction.

The scope of work performed includes, but is not limited to:

  • replacement of the upper voltage windings,
  • replacement or regeneration of lower voltage windings,
  • replacement or adjustment of on-load tap-changers,
  • mechanical repairs of cores and housings,
  • replacement of seals,
  • replacement of insulators,
  • centrifugation or replacement of transformer oil,
  • replacement of heat sinks/radiators and heat sink/radiators sealings,
  • mechanical repairs

Based on the potential of our engineering staff and our many years of experience, we carry out modernisation overhauls/repairs of transformers.

Among other things, we offer:

  • voltage ratio changes
  • changes to connection groups,
  • changes to the thermo-resistance class of insulation,
  • changes in cooling intensity through the use of modern heat sinks/radiators.

The correctness of the work performed is confirmed by the results of inter-operational and final tests carried out in accordance with the requirements of the relevant groups of standards: PN-EN 60034, PN-E-04700, PN-EN IEC 60079, ISO 10816 and internal control/inspection schedules of ZPRE “Jedlicze” Sp. z o. o.

More detailed information on diagnostics, service and delivery times is available from our employees during telephone consultations or by e-mail.

+48 13 4375318 do 321
+48 661 342 700
+48 785 992 684
+48 693 478 472
+48 661 611 322
+48 607 393 718
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