Abstract
We shall distinguish short arcs and plasma arcs. Imagine a type of arc with a length s considerably shorter than the radius a c of the cathodic spot. Then, although the flow lines diverge, the anodic spot will be of about equal size as the cathodic spot. When or as long as an arc corresponds to this description it is called a short or plasmaless arc. It will be seen from the power balance equations, (VIII, 16 and 22), that the anodic spot becomes hotter than the cathode spot. Usually, this fact can be used as a distinction mark. It will not be directly the higher temperature that is observed but a higher evaporation rate for the anode material. Of course, the question arises which ratios s/a c belong to short arcs. It will be seen in ยง 64 that
is likely to be valid in the short arcs.
The erratum of this chapter is available at http://dx.doi.org/10.1007/978-3-662-25893-4_80
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Author information
Authors and Affiliations
Rights and permissions
Copyright information
ยฉ 1958 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Holm, R. (1958). Distinct types of arcs in relay contacts. In: Elektrische Kontakte / Electric Contacts Handbook. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-25893-4_62
Download citation
DOI: https://doi.org/10.1007/978-3-662-25893-4_62
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-23790-8
Online ISBN: 978-3-662-25893-4
eBook Packages: Springer Book Archive