Effect of Gas Type on Flow Characteristics in a Circuit Breaker under Cold Flow Scenario

This paper presents first stage of supersonic flow modelling in gas circuit breakers without an arc. Flow characterisation focused on shock and flow separation phenomenon. Velocity deceleration caused by shock will play a significant role in determining arc cooling performance and will impact therma...

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Bibliographic Details
Published in:PLASMA PHYSICS AND TECHNOLOGY 2023-10, Vol.10 (3), p.136-140
Main Authors: Qiao, Yujiao, Matharage, Shanika, Wang, Zhongdong
Format: Article
Language:English
Online Access:Get full text
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Summary:This paper presents first stage of supersonic flow modelling in gas circuit breakers without an arc. Flow characterisation focused on shock and flow separation phenomenon. Velocity deceleration caused by shock will play a significant role in determining arc cooling performance and will impact thermal interruption capability. Gas properties such as specific heat ratio, density, and viscosity influenced the flow characteristics including shock location, strength and the flow separation process.
ISSN:2336-2626
2336-2634
DOI:10.14311/ppt.2023.3.136