Title :
Rotating arc interrupter with independent field excitation
Author :
Ennis, M.G. ; Turner, D.R. ; Spencer, J. ; Jones, G.R.
Author_Institution :
Dept. of Electr. Eng. & Electron., Liverpool Univ., UK
fDate :
3/1/1996 12:00:00 AM
Abstract :
A rotary arc interrupter is described in which the magnetic field is generated by a current other than the fault current flowing through the coil. This is shown to have advantages not only at low currents, less than 500 A, but at higher currents up to a few thousand amperes, resulting in a significant increase in arc rotation speed. Information on the arc shape and speed is obtained from optical fibres viewing close to the arc
Keywords :
circuit-breaking arcs; interrupters; 0.15 MPa; 0.3 MPa; 120 to 500 A; 330 to 600 A; arc control; arc rotation speed; arc shape; arc voltages; axial arc movement; circuit breakers; independent field excitation; preferential gas flows; rotary arc interrupter; separately excited coil; sinusoidal arc currents; switchgear;
Journal_Title :
Science, Measurement and Technology, IEE Proceedings -
DOI :
10.1049/ip-smt:19960183
