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Online Passive Dryers - Moisture Reduction Services & Equipment

SDMyers' patented online passive dryer technology is a preventive, always-on approach that controls transformer aging factors and moisture levels in all types and sizes of oil-filled power transformers. The result is extended asset life, reliable operation, and peace-of-mind.

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  • Manage moisture to keep insulation dry and stable

  • Reduce oxidation drivers and limits acids/byproducts as they form

  • Remove particles that degrade dielectric performance

  • Report data remotely for dashboard trending and status alerts

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Moisture Reduction Options 

A moisture reduction plan tackles moisture holistically and aggressively, protecting your entire fleet for its entire lifespan without a single day of downtime. Such a comprehensive approach involves monitoring and removing moisture from your transformer until the PPM reaches an acceptable, stable level.

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A fleet-wide plan can include both service-only dryouts and equipment ownership to meet the needs of your fleet, typically involving a combination of the following programs:

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SERVICE-ONLY

  • Recommended if you have multiple transformers with immediate needs

  • All the benefits of remedial moisture reduction without the long-term commitment of multiple unit purchases

  • The same dedicated service from SDMyers as ownership programs

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PERMANENT INSTALLATION (InsulMax or DryMax) 

  • Recommended for critical transformers and equipment under extremely demanding loads

  • Recommend InsulMax for new substation- or utility-grade transformers 

  • Dedicated unit and service package

  • Installed for the lifetime of the transformer

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MOBILE INSTALLATION

  • Recommended for customers with multiple wet transformers

  • Addresses the needs of the entire fleet

  • Removes and refits your DryMax units to multiple transformers as needed.

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