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COMPREHENSIVE TESTING OF ELECTRICAL SUBSTATIONS

Comprehensive testing of electrical substations

including acceptance, periodic, operational and post-failure tests of medium and high voltage substation equipment and apparatus – serves as a summary of the reliability and professionalism of Ośrodek Pomiarów i Automatyki in Zabrze.

Comprehensive testing of electrical substations

Electrical substations are a very important part of electrical energy distribution and transmission system, both in the industrial and commercial power industry. Any unplanned downtime can lead to significant costs – so a professional and comprehensive approach to assessing the technical condition of all substation equipment is a vital component of every technical inspection.

Our company specializes in broadly defined operational measurements, that is why the summary of our skills is COMPREHENSIVE TESTING OF ELECTRICAL SUBSTATIONS of all voltage levels.

Specialists at Ośrodek Pomiarów i Automatyki S.A. have many years of experience in operational testing of: power switches, disconnectors, transformers, surge arresters, current and voltage transformers, high and medium voltage switchgear and low voltage switchgear.

Comprehensive testing of electrical substations conducted by a team of close-knit professionals is carried out efficiently and reliably, therefore substation outage times are kept to a minimum.

During the testing of transformer substations at wind farms, for multi-day measurements, we provide the option to restart the wind farm, which minimizes production losses.

We perform testing of electrical substations in the areas of:

Power transformers in the areas of:

  • measurement of idle currents,
  • measurement of the gearbox and vector group,
  • measurement of the on-load tap changer,
  • measurement of winding resistance,
  • measurement of the dielectric loss factor tgδ and capacitance of the transformer and bushings,
  • measurement of dynamic resistance of the transformer,
    testing the mechanical condition of windings using the SFRA method,
  • measurement of solid insulation moisture content using the Frequency Domain Spectroscopy (FDS) method
  • transformer oil testing,
  • vibroacoustic testing of a transformer,
  • winding resistance measurements with 5kV voltage,
  • thermal imaging inspection.

Circuit breakers in the areas of:

  • measurements of contact resistance,
  • Measurements of non-simultaneity of opening and closing,
  • Measurements of the operating times of switching on and off,
  • checking the locks,
  • SF6 gas parameter analysis.
  • thermal imaging inspection,

Functional testing and adjustment of disconnectors.

Comprehensive testing of current, voltage and combined transformers.

Comprehensive testing of capacitor banks.

Comprehensive testing of surge arresters.

Comprehensive testing of relays and automated protection system

Cleaning and inspection of bolted connections.

Time required for testing

Depending on the scope, from 1 to 2 working days. Between each measurement day, the functionality of the electrical substation can be restored.

Recommendations

We have valid recommendations for performing the necessary measurement and operational work.

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