- Course 142
- 1 Week
- 3.6 CEU
Students learn instruction to install, maintain, repair or troubleshoot power transformers rated 765 kV or less. Participants will receive instruction on the filtering and drying out process to be performed on transformers.

This course uses up-to-date test equipment and procedures for evaluating the condition of a transformer. Test results can provide predictive data which will guide maintenance activities and help to prevent catastrophic failure that may damage downstream equipment and endanger personnel.
The course will be covering:
• Identify power/instrument and distribution transformer types, components and configuration of the auxiliary equipment.
• Evaluate transformer configuration for the application.
• Interpret nameplate data and use the data to set up correct test procedures.
• Utilize a frequency response analyzer to identify damage.
• Calculate polarization index and temperature corrections.
• Perform oil sampling, testing, drying, filling and filtering.
• Explain gas sampling and testing.
• Combine test results to troubleshoot transformer problems.
• Perform and evaluate results of insulation resistance, winding resistance, turns ratio, core excitation and power factor tests of windings, bushings and liquid insulation
Who Should Attend
This hands-on course is intended for new or experienced electricians and technicians that install, maintain, repair or troubleshoot power transformers rated 765 kV or less used in utility and industrial applications. Participants should have basic knowledge of AC/DC electricity.