CFD Simulation of Transonic Flow in High-Voltage Circuit Breaker

A high-voltage circuit breaker is an indispensable piece of equipment in the electric transmission and distribution systems. Transonic flow typically occurs inside breaking chamber during the current interruption, which determines the insulating characteristics of gas. Therefore, accurate compressib...

Full description

Saved in:
Bibliographic Details
Published in:International Journal of Chemical Engineering 2012-01, Vol.2012 (2012), p.1-9
Main Authors: Ye, Xiangyang, Dhotre, Mahesh
Format: Article
Language:English
Subjects:
Algorithms
Breakdown
Chemical engineering
Circuit breakers
Electric potential
Flow velocity
Fluid dynamics
Gas flow
Geometry
Methods
Partial differential equations
Simulation
Solvers
Transonic flow
Turbulence models
Validation studies
Voltage
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A high-voltage circuit breaker is an indispensable piece of equipment in the electric transmission and distribution systems. Transonic flow typically occurs inside breaking chamber during the current interruption, which determines the insulating characteristics of gas. Therefore, accurate compressible flow simulations are required to improve the prediction of the breakdown voltages in various test duties of high-voltage circuit breakers. In this work, investigation of the impact of the solvers on the prediction capability of the breakdown voltages in capacitive switching is presented. For this purpose, a number of compressible nozzle flow validation cases have been presented. The investigation is then further extended for a real high-voltage circuit breaker geometry. The correlation between the flow prediction accuracy and the breakdown voltage prediction capability is identified.
ISSN:1687-806X
1687-8078
DOI:10.1155/2012/609486