Image source: HItachi ABB Power Grids

REC Solar monitors transformers in real-time

Singapore: REC Solar is a multinational solar energy company, with about 10,000 MW of installed capacity worldwide.

With the objective of ensuring high power supply reliability at its manufacturing facility in Singapore, 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 will enable continuous monitoring of gases being built-up in transformer oil – a major indicator of transformer health. The TXpert™ Ready CoreSense™ sensor will be used for continuous monitoring of hydrogen and moisture levels in the oil of both transformers – the first warning indicators of deterioration in transformer health. The TXpert™ Ready CoreSense™ M10 that 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: Hitachi ABB Power Grids