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link 9.06.2014 19:19 
Subject: arc rooting, transparent arc root energ.ind.
Abstract: Issues associated with computer simulation of high voltage puffer circuit
breaker arcs burning between two hollow contacts are discussed and several test
cases modelled with a two dimensional axisymmetric arc model. The unrealistic
influence of Lorentz force associated with the uncertainties in arc rooting on the
shape of arc column and arc voltage is demonstrated and its cause argued based on
arc voltage measurement. The concept of transparent arc root is introduced to
suppress the unwanted arc column contraction. Reasonable agreement between
predicted and measured arc voltage is obtained for high current arcs. Effort is also
made to simulate the extinction peak shortly before the final current zero.

Тема COMPUTER SIMULATION OF THE ARCING PROCESS IN HIGH VOLTAGE
PUFFER CIRCUIT BREAKERS WITH HOLLOW CONTACTS

спасибо

 

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