Critical Length Criterion and the Arc Chain Model for Calculating the Arcing Time of the Secondary Arc Related to AC Transmission Lines*supported by National Natural Science Foundation of China (Nos. 51277061 and 51420105011). (June 2015)

• Record Type: Journal Article
• Authors: Cong, Haoxi; Li, Qingmin; Xing, Jinyuan; Li, Jinsong; Chen, Qiang
• Is Part Of: Plasma science and technology. Volume 17:Number 6(2015:Jun.)
• Page Start: 475
• Page End: 480
• Publication Date: 2015-06
• Subjects: Plasma (Ionized gases) -- Periodicals; 530.44
• DOI: 10.1088/1009-0630/17/6/07
• Languages: English
• ISSNs: 1009-0630

Abstract

<abstract> <title>Abstract</title> <p>The prompt extinction of the secondary arc is critical to the single-phase reclosing of AC transmission lines, including half-wavelength power transmission lines. In this paper, a low-voltage physical experimental platform was established and the motion process of the secondary arc was recorded by a high-speed camera. It was found that the arcing time of the secondary arc rendered a close relationship with its arc length. Through the input and output power energy analysis of the secondary arc, a new critical length criterion for the arcing time was proposed. The arc chain model was then adopted to calculate the arcing time with both the traditional and the proposed critical length criteria, and the simulation results were compared with the experimental data. The study showed that the arcing time calculated from the new critical length criterion gave more accurate results, which can provide a reliable criterion in term of arcing time for modeling and simulation of the secondary arc related with power transmission lines.</p> </abstract>