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The limits of the streamer mechanism in the electrical breakdown in air

The limits of the streamer mechanism in the electrical breakdown in air Appl. sci. Res. Section B, Vol. S THE LIMITS OF THE STREAMER MECHANISM IN THE ELECTRICAL BREAKDOWN IN AIR by W. KOHRMANN Institut fiir angewandte Physik der Universit~it Hamburg, Gvrmany In the following report I consider the significance of the streamer mechanism in the breakdown in air. The streamer mechanism occurs under this condition if the avalanche multiplication e ~ reaches the value e 2~ 1). Measurements of the threshold voltage were made with a plate spark gap in the region 500 < pd < 1500 Torr cm see r~ 70"6 .I p= 300 Fort r -2 Cm t1 10 -7 ". i t 10 100 % 0.1 dU Fig. 1. Formative time lag as function of the overvoltage. and the avalanche multiplication calculated. It follows that in this region streamer mechanism does not occur at the threshold voltage but only at overvoltages. Further experiments were made to investigate at which ovei- -- 288 -- STREAMER MECHANISM IN AIR 289 voltage the streamer mechanism occurs. For this purpose the formative time lag in its dependence on the overvoltage was measured. Besides this the form of the potential drop was ex- amined 2). In fig. 1 the measurements of the http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Scientific Research, Section B Springer Journals

The limits of the streamer mechanism in the electrical breakdown in air

Köhrmann, W.
Applied Scientific Research, Section B , Volume 5 (1) – Dec 1, 1956
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References (2)

Publisher
Springer Journals
Copyright
Copyright © Martinus Nijhoff 1956
ISSN
0365-7140
DOI
10.1007/bf02933303
Publisher site
See Article on Publisher Site

Abstract

Appl. sci. Res. Section B, Vol. S THE LIMITS OF THE STREAMER MECHANISM IN THE ELECTRICAL BREAKDOWN IN AIR by W. KOHRMANN Institut fiir angewandte Physik der Universit~it Hamburg, Gvrmany In the following report I consider the significance of the streamer mechanism in the breakdown in air. The streamer mechanism occurs under this condition if the avalanche multiplication e ~ reaches the value e 2~ 1). Measurements of the threshold voltage were made with a plate spark gap in the region 500 < pd < 1500 Torr cm see r~ 70"6 .I p= 300 Fort r -2 Cm t1 10 -7 ". i t 10 100 % 0.1 dU Fig. 1. Formative time lag as function of the overvoltage. and the avalanche multiplication calculated. It follows that in this region streamer mechanism does not occur at the threshold voltage but only at overvoltages. Further experiments were made to investigate at which ovei- -- 288 -- STREAMER MECHANISM IN AIR 289 voltage the streamer mechanism occurs. For this purpose the formative time lag in its dependence on the overvoltage was measured. Besides this the form of the potential drop was ex- amined 2). In fig. 1 the measurements of the

Journal

Applied Scientific Research, Section B – Springer Journals

Published: Dec 1, 1956

Keywords: Vertical Line; Threshold Voltage; Critical Multiplication; Formative Time; Potential Drop

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