NDLI: Application of Computational Fluid Dynamics to Reduce the New Product Development Cycle Time of the <formula formulatype=inline><tex Notation=TeX>${rm SF}

Content Provider	IEEE Xplore Digital Library
Author	Pawar, S. Joshi, K. Andrews, L. Kale, S.
Copyright Year	1986
Abstract	This paper describes thermal modeling, using computational fluid dynamics (CFD), to predict the temperature rise of a high-voltage SF₆ gas circuit breaker during a heat-run test. In electrical equipment, maximum temperature rise in various components is limited by their material properties and, hence, the heat-run test forms part of type test. A methodology to predict the temperature rise at the design stage is developed using ANSYS-CFX and found to be beneficial to reduce the number of heat-run tests during the product development process. The developed methodology has been implemented on a 72.5-kV SF₆ gas circuit breaker and validated with the experimental temperature rise results of the existing design at two current ratings: 1000 A and 2000 A. The methodology was further used to predict thermal performance of the breaker at a higher current rating of 3150 A. The prediction helped to understand temperature rise in various components and hot-spot locations. Various design modifications were then tested virtually to evaluate the temperature rise. Thereafter, the final modified design where the temperature rise of all the components was within the permissible limits and which also satisfied other constraints of manufacturing feasibility and cost was fabricated and physically tested. Good agreement is found between the CFD and experimental results.
Sponsorship	IEEE Power Engineering Society
Starting Page	156
Ending Page	163
Page Count	8
File Size	728748
File Format	PDF
ISSN	08858977
Volume Number	27
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computational fluid dynamics Heating Temperature measurement Mathematical model Atmospheric modeling Finite element methods Loss measurement temperature rise Computational fluid dynamics (CFD) analysis finite element heat-run test ohmic loss ${\rm SF}_{6}$ gas circuit breaker
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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