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Integrated safety device Comem R.I.S.®

Comem R.I.S.® is an integrated and compact device for hermetically sealed oil-insulated transformers. It integrates the functions performed by different transformer accessories into a single, compact and reliable device that keeps constant control of the transformer’s pressure, temperature, oil level and gassing.

Why ABB?

  • More than 50 years of experience in manufacturing transformer components
  • Comprehensive product portfolio for distribution and power transformers
  • Smart grid applications
  • Global after-sales and customer support network


Product scope:

  • Hermetically sealed oil-filled distribution transformers and small power transformers
  • Double insulation system, no need to make the earth connection
  • Air venting valve for draining the moisture inside the terminal box
  • Full compliance with the EN 50216-2-2 specification
  • EMC compliance ≤ 25 mT
  • No need of anti-magnetism shielding
  • UV protection screen

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