Study of anode spot transient processes of a high-current vacuum arc with high-speed spectroscopy and videorecording

2021 ◽  
Vol 64 (1) ◽  
pp. 112-117
Author(s):  
A.V. Schneider ◽  
◽  
S.A. Popov ◽  
E.L. Dubrovskaya ◽  
A.Y. Yushkov ◽  
...  
Keyword(s):  
High Speed ◽  
Arc Discharge ◽  
Circuit Breaker ◽  
Vacuum Arc ◽  
Charge Composition ◽  
High Current ◽  
Anode Region ◽  
Anode Spot ◽  
Vacuum Circuit Breaker ◽  
Switching Characteristics

The processes of plasma formation in the anode region of a high-current vacuum arc discharge are of high actuality in terms of improving the switching characteristics of vacuum circuit breaker. In present paper the dynamics of the radiation spectrum of anode region was recorded with the system that allows time scanning of a spectrum. In parallel, there was high-speed videorecording. The obtained data clearly show changes in the charge composition of the anode spot plasma in the process of changing discharge forms.

Extraction of the Geometric Features from the Vacuum Switching Arc Images

2013 ◽  
Vol 333-335 ◽  
pp. 860-863
Author(s):  
Hua Jun Dong ◽  
Wen Liang Dong ◽  
Kai Kang ◽  
Dao Shun Wang
Keyword(s):  
Power System ◽  
High Speed ◽  
Circuit Breaker ◽  
Morphological Characteristics ◽  
Vacuum Arc ◽  
Cmos Camera ◽  
Camera System ◽  
Vacuum Switch ◽  
Vacuum Circuit Breaker ◽  
Critical Components

Vacuum circuit breaker is one of the major critical components that controls and protects the power system. The breaking capability of the vacuum switch directly affects the safety of the power system. However, the breaking capability of the vacuum switch is determined by the morphological characteristics of the vacuum arc images. In this paper, in order to research the variation of the vacuum arc, a high-speed CMOS camera system is used to collect the vacuum arc images within a short gap (7mm), the morphological characteristics of the vacuum arc images are extracted based on the digital image processing. At last, the variation of the arc is analyzed.

Critical flow of high-speed ions in a high-current vacuum-arc discharge

2007 ◽  
Vol 45 (4) ◽  
pp. 446-455 ◽  
Author(s):  
Ya. I. Londer ◽  
K. N. Ul’yanov
Keyword(s):  
High Speed ◽  
Arc Discharge ◽  
Vacuum Arc ◽  
Critical Flow ◽  
High Current

scholarly journals Influence of Varying Gaps Between TMF Contacts on Constricted High Current Vacuum Arcs

2019 ◽  
Vol 6 (1) ◽  
pp. 103-106
Author(s):  
B. Kühn ◽  
B. Weber ◽  
D. Gentsch ◽  
M. Kurrat
Keyword(s):  
High Speed ◽  
Industrial Development ◽  
Circuit Breaker ◽  
Metal Vapor ◽  
High Speed Camera ◽  
High Current ◽  
Medium Voltage ◽  
Vacuum Circuit Breaker ◽  
Vacuum Test ◽  
Transversal Magnetic

The behavior of high current arcs in vacuum circuit breaker (VCB) is interesting for research and industrial development purpose which lead to further products. To improve the interruption capability of VCB, two approaches to control the arc have been proven successful. Applying transversal magnetic fields (TMF) on the arc is use for industrial VCB in medium voltage ranges. For greater gap distances the behavior of the arc is less thoroughly investigated. <br /> In this paper, the appearance of metal vapor arcs drawn by common TMF contacts in a vacuum-test-interrupter is investigated. An adapted drive mechanism enables to interrupt a fixed current with varying gaps from 5 to 25 mm and a constant opening time. Breaking operations with a 50 Hz current are observed with a high speed camera. With increasing gap distance a changed arc appearance can be observed. The goals of this work are to be understood as a feasibility study for optical evaluation methods for vacuum arcs under TMF.

Basic investigation of a high-speed vacuum circuit breaker and its vacuum arc characteristics

2006 ◽  
Vol 153 (1) ◽  
pp. 11 ◽  
Author(s):  
Y. Niwa ◽  
T. Funahashi ◽  
K. Yokokura ◽  
J. Matsuzaki ◽  
M. Homma ◽  
...  
Keyword(s):  
High Speed ◽  
Circuit Breaker ◽  
Vacuum Arc ◽  
Vacuum Circuit Breaker ◽  
Arc Characteristics ◽  
Basic Investigation

Investigation of the Arc of a Vacuum Circuit Breaker in a fixed Gap using the Triggering method.

2012 ◽  
Vol 13 (5) ◽  
Author(s):  
Stephen Ogidi Oodo ◽  
Huajun Dong ◽  
Jiyan Zou
Keyword(s):  
High Speed ◽  
Direct Relationship ◽  
Low Voltage ◽  
Circuit Breaker ◽  
Digital Camera ◽  
Life Time ◽  
Vacuum Arc ◽  
Ionized Gas ◽  
Metal Vapour ◽  
Vacuum Circuit Breaker

Abstract When the contacts of a Vacuum circuit breaker (VCB) with current flowing through it, is separated, an arc is generated. The Arc is usually supported by ionized gas or ionized metal vapour derived form the metal contact. This arc is an essential component of the interrupting process and capability of the Vacuum circuit breaker. The object of this paper is to trigger, record, observe and analyze the dynamic image of the Vacuum arc when it ignites in a short gap and at a low voltage. A CMOS high speed digital camera will be used to record the images of the arc. The characteristics of the arc in its diffused and constricted state, the degree of changes between the two states, and the direct relationship between the voltage and current will also be observed. The life time of the Vacuum arc will be 10ms

A Study of Transient Processes in a High-Current Vacuum-Arc Anode Spot Using High-Speed Spectroscopy and Videorecording

2021 ◽  
Author(s):  
A. V. Schneider ◽  
S. A. Popov ◽  
E. L. Dubrovskaya ◽  
A. Yu. Yushkov ◽  
A. V. Batrakov
Keyword(s):  
High Speed ◽  
Transient Processes ◽  
Vacuum Arc ◽  
High Current ◽  
Anode Spot
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