New vacuum arc control technology; SADE - application to vacuum interrupters

Honma, Mareki; Watanabe, Kenji; Nishihara, Mamoru; Ohshima, I.

doi:10.1049/cp:19970443

Cited by 8 publications

(3 citation statements)

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“…The resistivity change make the resistance increases, while the hardness change reduces the electrical resistance, both can form mutual compensation, the basic will not change the contact position of metal resistance [9].-However, the heating can make the contact area due to air to form oxide films, an increase of membrane resistance of the contact area, the increase of membrane resistance and will make the contact parts of fever increased, further temperature increase; the oxidation speed will be accelerated further, will increase the resistance of membrane, the process will enter into a vicious spiral, it requires that we must limit the contact surface of the limit temperature. Otherwise, it will cause the increase of contact resistance, will cause a vicious spiral [10].…”

Section: Contemporary Approaches In Materials Science and Materials P...mentioning

confidence: 99%

Analysis on Influencing Factors of Bus Bar Contact Resistance

Liu

Huang

Wen

2015

AMR

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Contact resistance is one of the key parameters of main bus bar. The bus performance is decided by the value of Contact resistance. By test of the typical rectangular copper bus-bar, it is analyzed that the effects of force on DC contact resistance. The results show that metal surface contact resistance decreases with the increment of pressure. The resistance is mental nature property, which is determined by material’s performance. At the same time the effect of contact distance is studied in detail.

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Section: Contemporary Approaches In Materials Science and Materials P...mentioning

confidence: 99%

Analysis on Influencing Factors of Bus Bar Contact Resistance

Liu

Huang

Wen

2015

AMR

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“…In the conventional AMF type, the vacuum arc is diffused and stabilized by the axial magnetic field that is parallel to the arc current [1] [2]. However for an extremely high interruption current, the arc of the conventional AMF electrode concentrates, causing local heating of the electrode [3]. The vacuum arc of an extremely high interruption current was diffused by the appropriate magnetic field distribution, unlike that of the conventional AMF distribution [3][4] [5].…”

Section: Introductionmentioning

confidence: 99%

Fundamental research of uniform vacuum arc control and its application to vacuum interrupter for high current interruption

Niwa

Sakaguchi

Sasage

et al. 2013

2013 2nd International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)

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The vacuum arc behavior and high current interruption ability of electrodes applied in the uniform vacuum arc control method are presented. The axial magnetic field distribution of this method is unlike that of the conventional AMF distribution. For extremely high interruption current, the arc of the conventional AMF electrode concentrates, causing local heating of the electrode, but the arc of this method diffuses over the whole contact area thus avoiding local heating. The relation among the electrode structure, the arc behavior and the magnetic field distribution between the electrodes is investigated, for applying this vacuum arc control method to the vacuum interrupter for the high current interruption. The vacuum interrupter applied this method can be made more compact and lighter than the conventional type.

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“…A high‐speed video camera was used to observe the arc behavior, a high‐sensitivity charge‐coupled device (CCD) camera to measure the temperature distribution of the anode surface and a Hall effect element measurement system and three‐dimensional magnetic field calculation to determine the magnetic flux density distribution between electrodes [3–5]. The vacuum arc of an extremely high interruption current was diffused by the appropriate magnetic field distribution, unlike that of the conventional AMF distribution [6,7]. Several different sized electrodes of this arc control were tested and the interruption ability was improved about twice as much as that of the conventional AMF.…”

Section: Introductionmentioning

confidence: 99%

Arc behavior and interruption ability of uniform vacuum arc control technology and its application to vacuum interrupter

Niwa

Yokokura

Sasage

et al. 2011

IEEJ Transactions Elec Engng

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The vacuum arc characteristics and high current interruption ability of several different sized electrodes applied in the uniform vacuum arc control method named self arc diffusion by electrode (SADE) are presented. The arc behavior of the test electrode during the arcing period was observed by a high‐speed video camera. At extremely high interruption currents, the arc of the conventional axial magnetic field (AMF) electrode concentrates, causing local heating of the electrode. However, the arc of the SADE diffuses over the whole contact area thus avoiding local heating. The interruption ability of SADE is about twice as much as that of the conventional AMF for the same sized electrode. By applying this arc control method to vacuum circuit breaker (VCB), it can be made more compact and lighter than the conventional type. © 2011 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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New vacuum arc control technology; SADE - application to vacuum interrupters

Cited by 8 publications

References 0 publications

Analysis on Influencing Factors of Bus Bar Contact Resistance

Analysis on Influencing Factors of Bus Bar Contact Resistance

Fundamental research of uniform vacuum arc control and its application to vacuum interrupter for high current interruption

Arc behavior and interruption ability of uniform vacuum arc control technology and its application to vacuum interrupter

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