By Marie Hirzel

"When electrical equipment fails, fires and/or explosions can occur, taking lives and damaging ancillary equipment and structures. These risks make mitigating electrical equipment failure a very high priority."

Failure Modes and Effects Analysis (FMEA) can be used to create a maintenance strategy that mitigates electrical equipment failures. This article presents an FMEA on an indoor dry-type transformer for this purpose.

To begin the FMEA, I will write a Function Statement for the transformer. Because the FMEA will apply to a wide range of indoor dry-type transformers, I will use variables to create the statement:

"Provide electrical power at amperage X and voltage Y from source Z."

This statement specifies what the transformer is expected to do. Next, I will write the Failure Mode Statements and the associated Functional Failure Statements. This produces five Failure Modes.

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This article was originally published in the June 2019 issue of the The Dry-Type revolution magazine.

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