Experimental evaluation of temperature distribution in armature of a brushed dc machine using thermal imaging

Mohd Azri Hizami, Rasid and Muhammad Nor Azril, Zulkafli and Daing Mohamad Nafiz, Daing Idris and Nurul Fatimah, Abdullah (2022) Experimental evaluation of temperature distribution in armature of a brushed dc machine using thermal imaging. In: 2022 International Conference on Electrical Machines, ICEM 2022 , 5-8 September 2022 , Valencia. pp. 1927-1933. (183486). ISBN 978-166541432-6

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Abstract

Monitoring the temperature on a rotating armature is necessary to ensure that the maximum temperature permissible by the conductor's insulation class is not exceeded. In a brushed dc machine, the closest location in direct contact with the armature that can be instrumented using thermocouples are the brush and bearing. However, the temperature measured is lower compared to the armature temperature. This paper presents an evaluation on the temperature distribution of an armature of a 250W brushed DC machine using thermal imaging. Using the blocked-rotor test, the temperature was raised to a steady state temperature. The thermal images are taken on the then unmounted armature winding. The temperature distribution was analyzed by identifying the maximum, minimum, and average temperature of each component. The winding, the brush, the armature core, and the commutator are the hottest components. Non-homogenous components, especially the commutator exhibits large temperature range.

Item Type:	Conference or Workshop Item (Lecture)
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Armature winding; Thermal analysis; Thermal image
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TS Manufactures
Faculty/Division:	Institute of Postgraduate Studies College of Engineering Faculty of Manufacturing and Mechatronic Engineering Technology Faculty of Mechanical and Automotive Engineering Technology
Depositing User:	Mr Muhamad Firdaus Janih@Jaini
Date Deposited:	28 Nov 2023 02:18
Last Modified:	28 Nov 2023 02:18
URI:	http://umpir.ump.edu.my/id/eprint/39405
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