Survey: DGA transformer monitoring important (but challenging) for utilities



A survey of electric power industry professionals found that dissolved-gas analysis (DGA) is becoming a preferred and vital part of utilities’ asset management strategies as they try to extend the life of their aging transformer fleets. But there's an impediment to wide-scale deployment - the cost.


The survey was conducted by LumaSense Technologies earlier this year in support a product launch. A small sample of power industry professionals - including electric utilities and transformer manufacturers around the world - was polled about DGA and transformer monitoring. Among the findings:


·         94% of respondents consider online DGA important

·         44% of respondents stated that 0-10% of their transformers have online DGA monitoring

·         44% of respondents said the average age of their transformers are 30+ years


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