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Doble-Megger

Dissolved Gas Analysers

Understand developing faults through transformer oil analysis.

Expertise for your application.

Follow changes in gases dissolved in transformer oil to support condition assessment. Doble online DGA products provide measurements that help identify developing electrical or thermal problems.

Equinox supports the selection of monitoring tools as part of a broader transformer diagnostic approach.

Read more: Doble Calisto dissolved-gas analysers (opens in a new tab)

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Technology in context.

The Calisto range monitors gases and moisture in transformer oil, with different configurations for fault screening and more detailed diagnostic analysis.

Explore the equipment and capabilities in our established portfolio. Model configuration and support can be discussed for your application.

Match the gas coverage to the decision

Entry configurations track hydrogen and moisture, while other models add carbon monoxide or a wider diagnostic gas set. The appropriate choice depends on the faults and interpretation methods the monitoring programme needs.

Connect oil condition to asset history

Continuous measurements can be trended alongside transformer operation. Communication options connect analysers to supervisory systems or a broader Calisto monitoring arrangement.

Applications

Where it fits.

  • Transformer fault screening
  • Multi-gas diagnostic monitoring
  • Oil moisture trending
  • Fleet condition comparisons

Choosing your solution

What to consider.

  • Which gases must be measured?
  • What oil and connection arrangement apply?
  • Which trends trigger investigation?
  • Where will measurements be integrated?

Find your technology

Dissolved gas, moisture and hydrogen monitoring

Explore the range and compare the capabilities that matter to your application.

Available models

2 models and ranges

Doble transformer gas monitoring

Go further

Further information.

Explore the information for your application, then speak to our team about selection and support.

Enquire about this range

Dissolved Gas Analysers

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A closer look

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