ABSTRACT

The present paper deals with the problem of the TMF interruption systems breaking capability concerning vacuum circuit breakers. The main goal is a better understanding of the physical phenomena taking place during the interruption process, for high currents, corresponding to short-circuit regime in the electrical networks. The arc appearance and its behaviour were explored with a dedicafed optical sqstem. An example of spatial and temporal distribution of the arc light intensity is presented. Specific peculiarities of the optical spectra recorded in the proximi@ of the short circuit current zero (C.Z.) moments are reported. Different current interruption situations are correlated with plasma spectral diagnosis. On this basis the authors try to define a set of plasma parameters which are critical in the studied interruption processes.

Investigation of the Rotating Arc Plasma Generated in Transverse Magnetic Field (TMF) Contacts of Vacuum Interrupter

DATE: 2004

AUTHORS: Dan PAVELESCU, Viorel BRAIC, Florin GHERENDI, Mariana BRAIC, Constantin NIȚU, Mihai BĂLĂCEANU, Gheorghe DUMITRESCU, Gabriela PAVELESCU, Smaranda NIȚU, Paula ANGHELIȚĂ

PUBLISHED IN: Proc. of. International Symposium on Discharges and Electrical Insulation in Vacuum ISDEIV 2004, vol. 1, pag. 156-159, 2004

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