Impact of Emissivity on the Hotspot Temperature for Condition Monitoring of Electrical Equipments in Closed Room

Abstract:

Condition monitoring of electrical equipments is indeed the earliest application of Infrared Thermography. It overcomes the disadvantages of conventional manual testing as it does not involve disassembly and reassembly of electrical equipments. Conventionally in IRT testing, hotspot is plotted across the time of testing and any abrupt deviation in the graph indicates either immediate or delayed manual. However hotspot temperature is also dependent on the environmental and operational conditions. Hence prior to plotting the hotspot temperature, it is necessary to correct the errors induced due to above factors in the measured temperature. In this paper relationship between hotspot temperature and emissivity is given as mathematical equation

• Periodical: Advanced Materials Research (Volumes 984-985)
• Pages: 1214-1219
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.984-985.1214
• Online since: July 2014
• Authors: M.S. Sangeetha*, N.M. Nandhitha, S. Emalda Roslin
• Keywords: Curve Fitting, Emissivity, Hotspot, Infrared Thermography, Region Growing

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