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All Technical Committee Conferences  (Searched in: Recent 10 Years)

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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 70  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
EMD 2024-12-11
14:40
Fukuoka JR HAKATA CITY (Fukuoka) Analysis of surface deformation of silver electrical contacts for different surface roughness at contact load of up to 5N
Shota Ide, Junya Sekikawa (Shizuoka Univ.) EMD2024-25
The contact resistance-load and displacement-load characteristics at contact loads of 0.03-5N are investigated for four ... [more] EMD2024-25
pp.23-26
EMD 2024-12-11
15:00
Fukuoka JR HAKATA CITY (Fukuoka) Dependence of breakdown voltage between constant closing-speed contacts on contact surface roughness in a 50-600VDC/10A circuit
Motoki Fujiwara, Junya Sekikawa (Shizuoka Univ.) EMD2024-26
Dependence of breakdown voltage between closing contacts on contact surface roughness is investigated. Supply voltage is... [more] EMD2024-26
pp.27-30
EMD 2024-12-11
15:20
Fukuoka JR HAKATA CITY (Fukuoka) Analysis of arc length of break arcs magnetically blown out in a 48VDC/400-600A resistive circuit
Hayato Mukoyama, Junya Sekikawa (Shizuoka Univ.) EMD2024-27
In a 48VDC/400-600A resistive circuit, arc length L of break arcs is analyzed when electrical contacts are separated at ... [more] EMD2024-27
pp.31-36
EMD 2024-12-11
15:50
Fukuoka JR HAKATA CITY (Fukuoka) Study of effective contacts shapes for lengthening of break arcs generated between electrical contacts with airflow ejection structure
Naoki Kanda, Junya Sekikawa (Shizuoka Univ.) EMD2024-28
In 100, 150, and 200 VDC/5A resistor circuits, silver contacts with airflow ejection structure, in which the contact sha... [more] EMD2024-28
pp.37-41
EMD 2024-12-11
16:10
Fukuoka JR HAKATA CITY (Fukuoka) Numerical analysis of contact geometry dependence of airflow generated between electrical contacts pairs with airflow jet structures
Shinya Kato, Junya Sekikawa (Shizuoka Univ.) EMD2024-29
The purpose of this report is to clarify the dependence of airflow distribution generated between electrical contacts on... [more] EMD2024-29
pp.42-47
EMD 2024-12-11
16:30
Fukuoka JR HAKATA CITY (Fukuoka) Damage process of PTFE dividing plates and receivers in forcible division of break arcs generated in a 600VDC/10A circuit
Rui Suzuki, Junya Sekikawa (Shizuoka Univ.) EMD2024-30
In a resistive circuit with a DC supply voltage of 500V or 600V and a circuit current of 10 A, the contacts are separat... [more] EMD2024-30
pp.48-53
EMCJ, WPT, EMD
(Joint)
2024-07-19
14:50
Tokyo (Tokyo) Analysis of arc length during discharge of break arcs magnetically blown out in a 48VDC/300A resistive circuit
Hayato Mukoyama, Junya Sekikawa (Shizuoka Un) EMD2024-2
Analyzed results of relationships between the length and voltage of break arcs are reported. The break arcs are generate... [more] EMD2024-2
pp.7-12
EMCJ, WPT, EMD
(Joint)
2024-07-19
15:15
Tokyo (Tokyo) Effect of contact opening speed on break arcs generated between electrical contacts with airflow ejection structure
Naoki Kanda, Junya Sekikawa (Shizuoka Univ.) EMD2024-3
In a resistive circuit with a DC power supply voltage of 100 V and a circuit current of 10 A, a silver contact pair with... [more] EMD2024-3
pp.13-18
EMCJ, WPT, EMD
(Joint)
2024-07-19
15:40
Tokyo (Tokyo) A study on improving results of numerical analyses of airflow acting on break arcs
Shinya Kato, Junya Sekikawa (Shizuoka Univ.) EMD2024-4
The purpose of this report is to clarify how to set the calculation conditions to obtain results that appear to be
cor... [more]
EMD2024-4
pp.19-24
EMD 2023-12-22
14:50
Tochigi Teikyo University (Tochigi) Numerical Analysis of Hole Diameter Dependence of Airflow Distribution between Electrical Contacts with an Airflow Jet Hole
Koki Kameyama, Naoki Kanda, Junya Sekikawa (Shizuoka Univ.) EMD2023-36
The authors proposed a method to shorten the duration of break arcs by ejecting airflow from the surface of an electrica... [more] EMD2023-36
pp.25-29
EMD 2023-12-22
15:15
Tochigi Teikyo University (Tochigi) Shortening of Duration of Break Arcs during Opening by Combined Use of Magnetic Blowing Out and Airflow in a 100VDC/10A Circuit
Naoki Kanda, Junya Sekikawa (Shizuoka Univ.) EMD2023-37
 [more] EMD2023-37
pp.30-34
EMD 2023-12-22
15:40
Tochigi Teikyo University (Tochigi) Characteristics of Break Arcs Generated between Cu, Al and Fe Electrical Contacts in a 100-280VDC/10A Resistive Circuit
Aoi Handa, Junya sekikawa (Shizuoka Univ.) EMD2023-38
Break arcs were generated using Cu, Al, and Fe as electrical contacts in the resistive load circuit with supply voltage ... [more] EMD2023-38
pp.35-40
WPT, EMCJ, EMD
(Joint)
2023-07-21
14:35
Tokyo (Tokyo, Online)
(Primary: On-site, Secondary: Online)
Improved method for analyzing the voltage-current characteristics of each arc length of break arcs generated in a 48VDC/50A-600A resistive circuit
Keiya Imori, Junya Sekikawa (Shizuoka Univ.) EMD2023-11
 [more] EMD2023-11
pp.7-12
EMD 2023-06-30
13:10
Hokkaido Chitose Arcadia Plaza (Hokkaido) Effect of position and shape of contacts on the moving characteristics and duration of break arcs blown by airflow from inside a contact
Naoki Kanda, Junya Sekikawa (Shizuoka Univ.) EMD2023-1
In a resistive circuit with a DC power supply voltage of 100 V and a circuit current of 10 A, a silver contact pair with... [more] EMD2023-1
pp.1-6
EMD 2023-06-30
13:30
Hokkaido Chitose Arcadia Plaza (Hokkaido) Durability of dividing plates and receivers in forcible division of break arcs with PTFE dividing plate
Rui Suzuki, Junya Sekikawa (Shizuoka Univ.) EMD2023-2
 [more] EMD2023-2
pp.7-12
EMD 2023-03-03
12:35
Saitama NIT and Online (Saitama, Online)
(Primary: On-site, Secondary: Online)
Forcible arc extinction of break arcs generated in a DC high voltage circuit using different kinds of resin plates
Takumi Sakamoto, Junya Sekikawa (Shizuoka Univ.) EMD2022-20
 [more] EMD2022-20
pp.1-6
EMD 2023-03-03
12:55
Saitama NIT and Online (Saitama, Online)
(Primary: On-site, Secondary: Online)
Analysis of surface topography before and after contact for silver electrical contacts
Kosuke Shinomura, Junya Sekikawa (Shizuoka Univ.) EMD2022-21
In this study, to investigate the deformation state of contact surfaces of silver contacts, the shape of the contact sur... [more] EMD2022-21
pp.7-10
EMD, WPT, EMCJ, PEM
(Joint)
2022-07-15
15:25
Tokyo (Tokyo, Online)
(Primary: On-site, Secondary: Online)
Numerical analysis of airflow to affect on motion of break arcs ejected from surface of electrical contact
Koki Kameyama, Junya Sekikawa (Shizuoka Univ.) EMD2022-1
 [more] EMD2022-1
pp.1-6
EMD, WPT, EMCJ, PEM
(Joint)
2022-07-15
15:50
Tokyo (Tokyo, Online)
(Primary: On-site, Secondary: Online)
Voltage-current characteristics for each arc length of break arcs genelated in a 48VDC/600A resistive load circuit
Keiya Imori, Junya Sekikawa (Shizuoka Univ.) EMD2022-2
 [more] EMD2022-2
pp.7-12
R, EMD 2022-02-10
15:35
Online Online (Online) Investigation by numerical simulation of flow velocity of air blowing to electrical contact gap and its effect on break arcs
Takashige Okuno, Junya Sekikawa (Shizuoka Univ.) R2021-45 EMD2021-13
In the interruption of DC high voltage circuits, it is desirable to extinguish the arc at the opening of the contacts in... [more] R2021-45 EMD2021-13
pp.12-17
 Results 1 - 20 of 70  /  [Next]  
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