Witamy na er-ea.pl. Skontaktuj się z nami

Welcome to er-ea.pl/en. Contact with us

Willkommen zu er-ea.pl/de. Kontakt mit uns

Range of activities


The Erea company has extensive competences and experienced specialists.

Electrical services

Overhaul services for electrical systems and equipment along with inspections, diagnostics and electrical measurements:
  • transformers and transformer stations
  • generators
  • electric motors
  • LV and HV switchgear and switching equipment
  • battery banks
  • rectifiers and excitation systems
  • current and voltage transformers
  • LV and HV lightning arresters and switches
  • lighting systems
  • earthing systems
  • lightning protection systems
  • LV and HV cable lines
Electrical diagnostics and measurements:
  • measurements for transformers: insulation resistance, winding resistance, voltage ratio determination, no-load and short-circuit tests
  • measurements for generators and electric motors: insulation resistance, winding resistance
  • testing: voltage tests of windings, leakage tests of cooling systems (water and gas type)
  • tests: stator sheet metal stacks, vibration and temperature, rolling bearing condition and no-load operation
  • voltage tests of power equipment with DC and VLF up to 45 kV
  • localisation of damaged power cables
  • thermal imaging tests