Voices: Tactics and Practices

Back-to-basics column on best practices at the ground level, written by Plant Services editors as well as industry contributors.


How to hear the damage you can’t see

Ultrasound tools can be your secret weapon against electrical insulation defects.

By Rudy Wodrich, VP of engineering services, IRISS Inc.
Jul 22, 2019

In electrical systems, especially those above 1,000V, sufficient and properly maintained equipment insulation helps ensure equipment longevity. However, manufacturing defects, installation practice irregularities, and vibrational wear and tear can affect insulation integrity. As a result, unwanted electrical partial discharges (PD) may be present.

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