Title :
Investigation of the characteristics of an SF6 rotating arc by a mathematical model
Author :
Guruprasad, P. ; Sarma, C.S. ; Ramamoorty, M. ; Naidu, M.S.
Author_Institution :
Central Power Res. Inst., Bangalore, India
fDate :
4/1/1992 12:00:00 AM
Abstract :
A mathematical model has been developed for predicting the performance of rotating arcs in SF6 gas by considering the energy balance and force balance equations. The finite difference technique has been adopted for the computer simulation of the arc characteristics. This method helps in considering the spatial variation of the transport and radiative properties of the arc. All the three heat loss mechanisms-conduction, convection, and radiation-have been considered. Results obtained over a 10 ms (half cycle of 50 Hz wave) current flow period for 1.4 kA (peak) and 4.2 kA (peak), show that the proposed arc model gives the expected behavior of the arc over the range of currents studied
Keywords :
circuit-breaking arcs; digital simulation; heat losses; power engineering computing; sulphur compounds; 1.4 kA; 4.2 kA; 50 Hz; SF6; computer simulation; conduction; convection; energy balance; finite difference technique; force balance equations; heat loss mechanisms; mathematical model; radiation; rotating arc; Computer simulation; Electrodes; Equations; Finite difference methods; Interrupters; Lighting control; Mathematical model; Pressure control; Switchgear; Temperature measurement;
Journal_Title :
Power Delivery, IEEE Transactions on
