OUR

SERVICES

Our years of experience producing transformers allow us to provide the services needed to keep your transformer operating in optimal condition

On-Site Services

Assembly and Commissioning

Assembly and conditioning for the commissioning of our entire range of products at voltage levels up to 500 kV and power rating of 250 MVA. Each stage of the assembly process of a transformer is carried out by highly qualified professionals, applying a work plan that has been previously agreed upon with the client.

On-Site Measurements

Carrying out electrical measurements as part of a maintenance and inspection plan for transformers is essential to help locate the causes of abnormal operation that cannot be detected with a simple analysis. The data gathered through electrical measurement instruments are interpreted and analyzed by our qualified personnel, who provide an accurate diagnosis.

The main electrical measurements for the maintenance of transformers that can be carried out on-site are:

  • Insulation resistance measurement (with polarization index and absorption index determination)
  • Ohmic resistance measurement of windings
  • Transformer turns ratio test (TTR), polarization, and vector group determination
  • Transformer tan delta test
  • HV bushings tan delta test
  • Sweep frequency response analysis 
  • Checking and calibration of protections and auxiliary circuits
  • Turns ratio test for current transformers (instrument transformers)
  • Dew point measurement to determine the humidity level in the transformer’s insulation

On-Site Services

Assembly and Commissioning

Assembly and conditioning for the commissioning of our entire range of products at voltage levels up to 500 kV and power rating of 250 MVA. Each stage of the assembly process of a transformer is carried out by highly qualified professionals, applying a work plan that has been previously agreed upon with the client.

On-Site Measurements

Carrying out electrical measurements as part of a maintenance and inspection plan for transformers is essential to help locate the causes of abnormal operation that cannot be detected with a simple analysis. The data gathered through electrical measurement instruments are interpreted and analyzed by our qualified personnel, who provide an accurate diagnosis.

The main electrical measurements for the maintenance of transformers that can be carried out on-site are:

  • Insulation resistance measurement (with polarization index and absorption index determination)
  • Ohmic resistance measurement of windings
  • Transformer turns ratio test (TTR), polarization, and vector group determination
  • Transformer tan delta test
  • HV bushings tan delta test
  • Sweep frequency response analysis 
  • Checking and calibration of protections and auxiliary circuits
  • Turns ratio test for current transformers (instrument transformers)
  • Dew point measurement to determine the humidity level in the transformer’s insulation

Thank you very much for your time and for trusting TTE!

Your feedback is essential for us to keep improving our processes and delivering the quality your operation deserves. We greatly value the relationship we have with each of our customers. We are at your complete disposal for anything you may need.

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