Humidity in Oil

Monitoring of crucial oil systems

Transformers

In an oil insulated transformer, oil is a crucial component as it helps with heat dissipation and electrical insulation. Transformer oil is designed to withstand high voltage stresses. Increased water activity risks electrical discharge and can therefore lead to total failure of a transformer.

Hydraulics

Hydraulic oil is designed to withstand high pressure and temperatures. An increase in water activity can have several negative impacts such as corrosion or changes in the viscosity of the oil. This could not only lead to a less efficient power transmission but also damage the hydraulic system components.

Lubricants

Water activity does not have a direct effect on the properties of lubricant oil. However, water contamination in a lubricant oil system can contribute to rust, corrosion, and other mechanical problems. It is important to ensure that lubricant oil is kept clean and dry to prevent these issues which could lead to increased friction and thus faster worn-out parts.

Discover how Sensirion contributes to the solution

Elevated supply-voltage and enhanced ESD protection

On-line monitoring of crucial oil systems

On-line monitoring of crucial oil systems as found in large hydraulic systems, gearboxes, transformers, and many others

Cost effective design-in solution for your application of choice

The design is also available with optional protective cover for conformal coating applications.

Water Activity Measurement aW

  • 04/2023
  • PDF
  • 182.0 KB

Water Activity Measurement aW

  • 04/2023
  • PDF
  • 182.0 KB

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