Mechanisms responsible for arc cooling in different gases in turbulent nozzle flow

Y. Guo; H. Zhang; Y. Yao; Q. Zhang; J. D. Yan

doi:10.14311/ppt.2017.3.234

Mechanisms responsible for arc cooling in different gases in turbulent nozzle flow

Y. Guo, H. Zhang, Y. Yao, Q. Zhang, J. D. Yan^*

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

Abstract

A high voltage gas blast circuit breaker relies on the high speed gas flow in a nozzle to remove the energy due to Ohmic heating at high current and to provide strong arc cooling during the current zero period to interrupt a fault current. The physical mechanisms that are responsible for the hugely di erent arc cooling capabilities of two gases (SF₆ and air) are studied in the present work and important gas material properties controlling the cooling strength identified.

Original language	English
Pages	234-240
Number of pages	7
DOIs	https://doi.org/10.14311/ppt.2017.3.234
Publication status	Published - 2017
Externally published	Yes
Event	22nd Symposium on Physics of Switching Arc, 2017 - Nove Mesto na Morave, Czech Republic Duration: 4 Sept 2017 → 8 Sept 2017

Conference

Conference	22nd Symposium on Physics of Switching Arc, 2017
Country/Territory	Czech Republic
City	Nove Mesto na Morave
Period	4/09/17 → 8/09/17

Keywords

SF6 alternative gases
SF6 replacement
Switching arc.

Access to Document

10.14311/ppt.2017.3.234

Cite this

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abstract = "A high voltage gas blast circuit breaker relies on the high speed gas flow in a nozzle to remove the energy due to Ohmic heating at high current and to provide strong arc cooling during the current zero period to interrupt a fault current. The physical mechanisms that are responsible for the hugely di erent arc cooling capabilities of two gases (SF6 and air) are studied in the present work and important gas material properties controlling the cooling strength identified.",

keywords = "SF6 alternative gases, SF6 replacement, Switching arc.",

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AU - Yao, Y.

AU - Zhang, Q.

AU - Yan, J. D.

N1 - Publisher Copyright: © Department of Physics, FEE CTU in Prague, 2017

PY - 2017

Y1 - 2017

N2 - A high voltage gas blast circuit breaker relies on the high speed gas flow in a nozzle to remove the energy due to Ohmic heating at high current and to provide strong arc cooling during the current zero period to interrupt a fault current. The physical mechanisms that are responsible for the hugely di erent arc cooling capabilities of two gases (SF6 and air) are studied in the present work and important gas material properties controlling the cooling strength identified.

AB - A high voltage gas blast circuit breaker relies on the high speed gas flow in a nozzle to remove the energy due to Ohmic heating at high current and to provide strong arc cooling during the current zero period to interrupt a fault current. The physical mechanisms that are responsible for the hugely di erent arc cooling capabilities of two gases (SF6 and air) are studied in the present work and important gas material properties controlling the cooling strength identified.

KW - SF6 alternative gases

KW - SF6 replacement

KW - Switching arc.

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DO - 10.14311/ppt.2017.3.234

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T2 - 22nd Symposium on Physics of Switching Arc, 2017

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ER -

Mechanisms responsible for arc cooling in different gases in turbulent nozzle flow

Abstract

Conference

Keywords

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