The model of contact erosion at a non-stationary arc spot

2025

Full text Open access: Hybrid Metadata (CSL-JSON)
DOI 10.70474/kmj-2024-1-2
Data confidence 70 medium
How this score is calculated

It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

The model of arc evolution and instability based on the dynamics of arc root is presented in this paper. It is shown that heating of cathode material and ejection of metallic vapors from cathode to plasma increases arc resistivity and entails arc instability at certain critical current. Phenomenon of arc-to glow transition in low current inductive electrical circuits due to arc instability is considered as a special case.