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CoreSense™ hydrogen & moisture sensors

Provides real-time Transformer Intelligence online and all the time.

CoreSense™ gives continuous online monitoring of transformer gases, such as hydrogen and moisture. It monitors hydrogen levels in transformer oil to provide an early warning for most incipient transformer faults. ABB's sensors complement traditional offline laboratory Dissolved Gas Analysis (DGA) of the transformer oil.

Easy installation

CoreSense can be installed on any transformer brand and type, old as well as new, or on a whole fleet of transformers. Thanks to its innovative thermal pump design that uses no moving parts, it can be connected to the transformer at any location including the drain valve.

Low maintenance

CoreSense is maintenance free for 15 years. There are no moving parts and no need to calibrate.

More features at a glance:

  • Online monitoring of hydrogen in transformer oil
  • Solid-state hydrogen sensor (no membrane)
  • Online monitoring of moisture in transformer oil
  • Active oil sampling/circulation with no moving parts
  • Easy to download data in .csv format for offline analysis
  • Two user-configurable alarm levels WARNING and ALARM for both hydrogen and moisture
  • Easy to interpret alarms and LED´s
  • Large number of communication protocols and options
  • 4-20 mA inputs allow connection from external sensors (i.e. load, ambient temperature or oil temperature)
  • Sensor configuration and administration: streamlined and intuitive web interface

Cyber Security Registration

ABB strives to maintain cyber security for our products and services. By registering your product you will have access to myABB business portal, where you will find notifications about newly found software vulnerabilities, and options to download latest software


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