Transformer Maintenance and Testing

TRANSFORMER MAINTENANCE AND TESTING | (TMT | #142) 4.5 DAYS | 3.2 CEUs

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.

To receive 3.2 CEUs, participants must attend 4.5 days of class (32 contact hours) and attain a minimum average grade of 80% (overall grade will consist of 50% lab practice and 50% final exam). Upon completion of this course and lab practice, the participant will demonstrate that he/she is able to:

• Describe the major categories and the most common designs of transformers.
• Identify power, instrument and distribution transformer components and auxiliary equipment.
• Demonstrate routine and diagnostic inspections and point out potential problems and hazards.
• Interpret nameplate data and use the data to set up correct test procedures.
• Simulate appropriate tests to evaluate the condition and perform maintenance on transformers.
• Discuss oil sampling and the correct procedures to obtain samples.
• Summarize testing, drying, filling and filtering techniques and procedures.
• Explain gas sampling and testing.
• Discuss test results to troubleshoot transformer problems.
• Determine the dryness of insulation using safety precautions, proper tools, vendor manuals and/or drawings.

Western Electrical Services

14311 29th St. East

Sumner, WA 98390

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