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New Power Transformer Inspections & Tests

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Summary

When a utility acquires a new power transformer, the transformer undergoes a number of inspections and tests before it is accepted by the utility and put in service. This 30-minute DVD provides a general overview of inspections and tests that are commonly performed on a new power transformer.

Training Sessions

  • "On-Car" Inspections and Tests – 10 minutes
    Explains why utilities inspect and test new power transformers. Describes a procedure for inspecting an impact recorder. Describes a procedure for performing a dew point test.

  • Moving a New Power Transformer – 9 minutes
    Describes a procedure for taking a power transformer off a rail car. Describes a procedure for moving a power transformer onto a flatbed trailer. Describes some considerations associated with transporting a power transformer from a railroad siding to a substation.

  • "On-Site" Inspections and Tests – 12 minutes
    Describes a procedure for performing a pressure relay test. Describes a procedure for performing temperature indicator tests. Describes a procedure for performing insulation resistance tests. Describes a procedure for performing oil tests. Describes a procedure for performing a turns ratio test.

Support Materials Available

Student workbook, instructor guide.