Development of a spectrofluorimetry-based device for determining the acetylene content in the oils of power transformers
2013
Quintella, Cristina M. | Meira, Marilena | Silva, Weidson Leal | Filho, Rogério G.D. | Araújo, André L.C. | Júnior, Elias T.S. | Sales, Lindolfo J.O.
Power transformers are essential for a functioning electrical system and therefore require special attention by maintenance programs because a fault can harm both the company and society. The temperature inside a power transformer and the dissolved gases, which are primarily composed of acetylene, are the two main parameters monitored when detecting faults. This paper describes the development of a device for analyzing the acetylene content in insulating oil using spectrofluorimetry. Using this device introduces a new methodology for the maintaining and operating power transformers. The prototype is currently operating in a substation. The results presented by this system were satisfactory; when compared to chromatographic data, the errors did not exceed 15%. This prototype may be used to confirm the quality of an insulating oil sample to detect faults in power transformers.
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