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Der freibrennende Störlichtbogen
Author(s) -
Klengel H.,
Böhme H.
Publication year - 1981
Publication title -
beiträge aus der plasmaphysik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0005-8025
DOI - 10.1002/ctpp.19810210504
Subject(s) - arc (geometry) , plasma , current (fluid) , electric arc , beam (structure) , volume (thermodynamics) , electric current , plasma arc welding , plasma volume , materials science , electrical engineering , mechanics , atomic physics , physics , optics , engineering , mechanical engineering , electrode , thermodynamics , nuclear physics , medicine , quantum mechanics , endocrinology
Long high current arcs ( I ⩽ 60 kA, f = 50 Hz, t ⩽ 200 ms, l = 1 m) appear after discharges at electric power systems. The arc must be localized in a separate volume in order to protect the equipment from the high temperature. The arc is stabilizing by the plasma‐beam starting at its bottom. The properties of the plasma‐beam are described: general phenomena, the length as a function of current and time, the behaviour in a half‐cycle and the acoustic emission. Several conclusions for the construction of the protective armatures are presented.