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Transformer Testing

IPEC can help asset managers understand and plan the most effective transformer testing schedule for each individual asset.

Condition Based Maintenance (CBM) is a set of activities that detect changes in the physical condition of equipment. By carrying out testing on equipment during its service life, signs of damage can be detected and repaired before failure occurs, improving both the safety and reliability of a network. Effective CBM means asset managers can avoid early life failure and extend operational life of asset.

Transformer Testing

Transformers are some of the most important and expensive equipment in any network. Due to complexity of the internals of a transformer there is no single test that can give overall health. Tests will generally focus on specific components within the transformer therefore a combination of tests is required to comprehensively understand the health of an asset. IPEC can help asset managers understand and plan the most effective transformer testing schedule for each individual asset. Some tests can be carried out while the transformer is live, others require a shutdown therefore performing multiple tests together can significantly reduce downtime

Power Transformers

Transformer Testing Methods

Online – Conducted whilst transformer is live
  • Partial Discharge (PD) – continuous or periodic
  • Infrared Thermography (IR)
Offline – Requires a shutdown
  • Insulation Resistance and Polarization Index
  • Tan Delta and Capacitance Measurement
  • Winding resistance
  • Turn Ratio
  • SFRA (Sweep Frequency Response Analysis)
  • Oil Tests (Dissolved gases and other parameters)
  • DC Hipot Testing
  • General Maintenance

Why Conduct Condition Based Maintenance

Extend Asset Life

Testing of Transformers allows you to optimise asset life

Identify Problems Before Failure

Find defects and problems before assets fail

Staff and Public Safety

Avoiding failures means substation staff and public safety

Replacement Strategy

Avoid unneccessary replacements, focusing budget on problem assets only

No Outage Testing

Online test methods can be done live

Comprehensive Offline Tests

Full range of testing to maximise shutdown time

Detailed Info

IPEC Services

IPEC Services can offer any combination of the above tests, however in few cases are all required, and in some cases certain tests are not possible or useful. Basic details of each test and some requirements are listed below. For more detail on each test type, the requirements and detailed outputs please contact IPEC sales team.

Where IPEC Teams are Based

  • United Kingdom & Europe
  • United Arab Emirates & Middle East
  • Kingdom of Saudi Arabia
  • India & South Asia
  • Asia Pacific
  • Other worldwide locations on request