Abstract
When dry-type air-core reactors are in operation, the surrounding grounding devices, fences and other closed structural parts are abnormally hot. Because there is no effective analysis and detection methods for concealed projects such as grounding devices, it brings great difficulties to on-site analysis of problems; this article is based on the site conditions Theoretical analysis and the use of ground penetrating radar detection technology to study a 66kV dry-type reactor grounding device abnormal heating problem, through the analysis of the detection results, it is found that the reason for the heating of the dry anti-grounding device is that the grounding device has a circulating current in the alternating field; The design and construction of grounding devices of dry-type air-core reactors in new projects will provide certain reference significance.
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