Maintenance for sub-stations up to 550kV

Preventive, predictive and corrective maintenance service

  • • SF6 gas-insulated, vacuum-operated circuit-breakers;
  • • Disconnect switches;
  • • TC's | TP's | Lightning rods;
  • • Conductor Cable;
  • • Thermovision and ultrasound;
  • • SF6 Leak detection and repair;
  • • SPDA and ground loop, with high frequency terrometer, for testing in operation;
  • • General inspection and cleaning of insulation and cabinets;
  • • Commissioning.

For more information contact our commercial team: +55 (85) 4117-0032

Transformers Maintenance

Assembly, maintenance and electrical testing service in general.

  • • Assembly and electrical testing;
  • • Active part Filling, treatment, regeneration and drying;
  • • Leak removal and painting in general;
  • • Accessories supply
  • • Insulating fluids collection and analysis;
  • • Continuous monitoring of gases and humidity.

For more information contact our commercial team: +55 (85) 4117-0032

MAINTENANCE FOR WIND AND SOLAR PARKS

Flushing in gearbox, General maintenance.

  • • Operation;
  • • Substation maintenance;
  • • Transformer maintenance;
  • • Supervision and commissioning;
  • • Cable fault detection (Reflectometer);
  • • Cable repair;
  • • Wind turbine gearbox oil flushing and filtration;
  • • MV switchgear maintenance and repair (SF6, Vaccum);
  • • Thermovision and ultrasound.

For more information contact our commercial team: +55 (85) 4117-0032

Laboratory

Specialized in conducting all types of insulating fluids analysis.

Specialized in physico-chemical and chromatographic analysis. Special testing such as: furans and PCB analysis and DBDS.

  • • The physico-chemical analysis indicates the aging state, performance characteristics and contamination of the insulating oil;
  • • The analysis by gas chromatography allows to identify the occurrence of defects and / or failures associated with the dielectric materials involved, thus allowing to determine the conditions of operation of the equipment as well as to monitor them still in the acceptance stage, both in the factory and in the field.

For more information contact our commercial team: +55 (85) 4117-0032

Cable fault detection

Reflectometer, hipot, seam / muffle equipment

  • • Ground fault location;
  • • Leakage Current Tests with applied voltage;
  • • Making Wires and Muff Pieces.

For more information contact our commercial team: +55 (85) 4117-0032

SF6 AND VACUUM SWITCHGEAR MAINTENANCE AND REPAIR

SF6 leak Removal, repair and and general maintenance.

  • • General inspection;
  • • SF6 gas leak detection, repair and supply;
  • • Welding in general;
  • • Painting;
  • • Accesory supply;
  • • Electrical testing;
  • • Commissioning, Moving, replacing and installing.

For more information contact our commercial team: +55 (85) 4117-0032

Medium Voltage Electrical Testing Laboratory

Routine and special tests on transformers up to 36 kV

Among the electrical tests carried out, the following stand out:

  • • Industrial frequency withstand voltage (applied voltage)
    This test aims to verify the insulation and distance of high and low voltage against the mass of the equipment.
  • • Induced voltage of short duration.
    Check the insulation between the high and low voltage coils.
  • • Measurement of load losses.
    This is the active power absorbed, relative to a pair of coils, at the rated industrial frequency and reference temperature when the rated current flows through the line terminal of one of the coils and the terminals of the other coil are short-circuited.
  • • Measurement of no-load losses.
    It represents the power absorbed when the rated voltage at the rated frequency is applied to the terminals of one coil, with the other coil in open circuit.
  • • Isolation power factor.
    It is a complete and general test of the insulating properties of the transformer. The test measures the energy losses due to current leaks, through insulation.

All tests are carried out according to Brazilian and international standards and comply with the conditions to ensure the safety of professionals and equipment.

For more information contact our commercial team: +55 (85) 4117-0032

Laboratório de Ensaios Elétricos de média tensão