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REC Solar to use digital sensors for transformers

Apr 6, 2021
Misc
Posted by Patrick Haddad

Singapore’s REC Solar has adopted online monitoring and diagnostics sensors from Hitachi ABB Power Grids for the two 75/95 MVA transformers at the unit.

Digital sensors can enable continuous monitoring of gases being built up in transformer oil – a major indicator of transformer health. Hitachi ABB’s TXpert™ Ready CoreSense™ sensor[2] will be used for continuous monitoring of hydrogen and moisture levels in the oil of both transformers at REC Solar.

The TXpert™ Ready CoreSense™ M10, which can measure nine gases, has been mounted on a  movable skid and provided as a Nursing Unit. When the CoreSense™ indicates high hydrogen levels in any one of the transformers, the Nursing Unit will be quickly moved to it for a more detailed analysis, giving high flexibility to monitor both transformers with one multigas sensor. The Nursing Unit can also be offered as a service to support extending operations of a sick transformer until a scheduled shutdown.

“Thanks for introducing the valuable online monitoring product CoreSense™ M10, which is helping us to detect possibility of premature failure and the status of critical transformer health in real-time”, said Padmanabhan Sivakumar, Senior Electrical Engineer of REC Solar, Singapore.

“I certainly believe that for major distribution systems it is good to equip transformers with digital monitoring and diagnostics. This will develop the organization’s confidence on power supply reliability and provide business continuity”.

Source and image: Hitachi ABB

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