Presentation 2016-12-16
Arcless Hybrid DC Circuit Breaker Using Tungsten and Carbon Contacts
Tatsuya Hayakawa, Kyotaro Nakayama, Koichi Yasuoka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A hybrid circuit breaker consists of power semiconductor devices and a varistor connected in parallel with an electrical contact. In this study, we use SiC-MOSFET and contacts made from tungsten and carbon, which have high melting and boiling temperatures, to commute the contact current to MOSFET by the molten metal bridge voltage formed between contacts without arc discharge Arc formation processes and current commutation characteristics of each contact at the condition of DC 50 V, 150 A were investigated. As a result, arcless commutation was successfully demonstrated when using each contact.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Arc discharge / DC circuit breaker / Molten metal bridge / Contact material / SiC-MOSFET
Paper # EMD2016-66
Date of Issue 2016-12-09 (EMD)

Conference Information
Committee EMD
Conference Date 2016/12/16(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yoshiteru Abe(NTT)
Vice Chair
Secretary (Sumitomo Denso)
Assistant Yoshiki Kayano(Univ. of Electro-Comm.) / Yuichi Hayashi(Tohoku Gakuin Univ.)

Paper Information
Registration To Technical Committee on Electromechanical Devices
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Arcless Hybrid DC Circuit Breaker Using Tungsten and Carbon Contacts
Sub Title (in English)
Keyword(1) Arc discharge
Keyword(2) DC circuit breaker
Keyword(3) Molten metal bridge
Keyword(4) Contact material
Keyword(5) SiC-MOSFET
1st Author's Name Tatsuya Hayakawa
1st Author's Affiliation Tokyo Institute of Technology(Titech)
2nd Author's Name Kyotaro Nakayama
2nd Author's Affiliation Tokyo Institute of Technology(Titech)
3rd Author's Name Koichi Yasuoka
3rd Author's Affiliation Tokyo Institute of Technology(Titech)
Date 2016-12-16
Paper # EMD2016-66
Volume (vol) vol.116
Number (no) EMD-371
Page pp.pp.7-12(EMD),
#Pages 6
Date of Issue 2016-12-09 (EMD)