Faculty Profiles - OHTSUKA Shinya

Papers - OHTSUKA Shinya

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Properties of Electrostatic Discharge from a Charged Glass Body Moving to the Ground Plate Reviewed

Kenta Tagami, Shinya Ohtsuka, Kenichi Kawabe

The International Conference on Lightning & Static Electricity 2017(ICOLSE2017), 1C1-2 2017.09

Influences of Lightning Strike on Electrical Insulation and Absorption Properties of Radio Wave Absorbers for the GHz Frequency Band Reviewed

S. Ohtsuka, K. Tagami, Y. Okura, T. Tabata , K. Kubo

The International Conference on Lightning & Static Electricity 2017(ICOLSE2017), 2C1-3 2017.09

絶縁診断技術の高度化に向けた部分放電電流パルス波形の超広帯域計測技術～PM2.5 を含む大気汚染評価に向けた気中放電への適用～

大塚　信也

電気評論 ( 電気評論社 ) 101 ( 11 ) 72 - 76 2016.11

Partial Discharge Current and Emitted Electromagnetic Waves Measured with the VHF/UHF Methods between N2, CO2, Dry Air and SF6 at Partial Discharge Inception Voltage Reviewed

S. Ohtsuka, T. Sonoda, T. Shiraishi, K. Inami, H. Hama, G. Ueta, S. Okabe

21th International Conference on Gas Discharges and their Applications 297 - 300 B5 2016.09

Investigation of DC corona discharge properties using UHF method Reviewed

171 - 176 2015.12

Investigation of DC corona discharge properties using UHF method Reviewed International journal

Nugraha, F.A.Email Author, Harid, N., Sayari, N.A., Barkat, B., Ohtsuka, S.Email Author, Harada, K., Okura, Y., Sonoda, T.

5th International Conference on Electrical Engineering and Informatics ( Institute of Electrical and Electronics Engineers Inc. ) 171 - 176 2015.12

Authorship：Corresponding author Language：English Publishing type：Research paper (international conference proceedings)

Indonesia Jayakarta 2015.08.10 - 2015.08.11

Partial Discharge (PD) measurement is well known as powerful method to identify the condition of high-voltage insulation. This paper investigates the properties of the ultra-high frequency (UHF) electromagnetic (EM) wave emanating from the air discharge (corona) under high voltage DC source. By applying both positive and negative high voltage DC ranging up to 135 kV, a rod antenna and a horn antenna were used as UHF sensors to detect any EM wave emission from PD activity and breakdown in air insulation. The experiment results show that typical PD emission signals under positive DC have higher voltage amplitude and wider burst width pulses than the typical PD emission signals under negative DC. Moreover, it is found that the first-peak of EM wave emission under positive DC has negative polarity while under negative DC has positive polarity. In addition, FFT analysis shows that this typical air discharge has dominant amplitude in frequency bands below 250MHz. Another significant result of this experiment is the inability of the horn antenna to detect the EM emission from air discharge. © 2015 IEEE.

DOI： 10.1109

Estimation of spark ignition phenomena on CFRP specimen with a fastener by a novel optical system in the ignitable mixture test method Reviewed

TOU15-83 2015.09

SUPER HIGH FREQUENCY COMPONENTS OF PARTIAL DISCHARGE CURRENT PULSE WAVEFORMS AND THE EMITTED ELECTROMAGNETIC WAVES MEASURED WITH THE SHF_PDPW SYSTEM Reviewed

436 2015.08

BREAKDOWN AND PARTIAL DISCHARGE INCEPTION CHARACTERISTICS IN N2, CO2, DRY AIR AND SF6 AT LIGHTNING IMPULSE VOLTAGE Reviewed

222 2015.08

STEEP RISE TIME PROPERTIES OF PD CURRENT PULSE WAVEFORM IN GASEOUS AND OIL INSULATIONS MEASURED WITH THE SHF_PDPW SYSTEM Reviewed

434 2015.08

Estimation of spark ignition phenomena on CFRP specimen with a fastener by a novel optical system in the ignitable mixture test method Reviewed

2015 ( 11 ) 2015.01

Difference in Detected PD-emitted Electromagnetic Waves in Atmospheric Air and Insulation Oil by Antenna Type Reviewed

Yasuyuki Ohkura, Toshitake Umegane, Ryota Fuchi, Shinya Ohtsuka, Akira Taguchi, Yosuke Hashimoto

2014 IEEE International Conference on Condition Monitoring and Diagnosis(CMD2014) ( OB1-03 ) 2014.09

Influences of the Measurement Frequency Bandwidth on PD Current Pulse Waveforms and Emitted EM Waves in Mineral Oil with the SHF_PDPW System Reviewed

Takuya Matsumoto, Minoru Fukuzaki, Shinya Ohtsuka

2014 IEEE International Conference on Condition Monitoring and Diagnosis(CMD2014) ( OB1-06 ) 2014.09

Flashover Voltage Properties Between Foil Electrodes Formed on the Printed Wiring Board under the ESD Test Reviewed

Tomohito Kamo, Sho Iwai, Masashi Sonoda, Shinya Ohtsuka

2014 IEEE International Conference on Condition Monitoring and Diagnosis(CMD2014) ( OG-04 ) 2014.09

NOVEL ESTIMATION METHOD OF SPARK PHENOMENA OF THE CFRP SAMPLE WITH A FASTENER BY OPTICAL MEASUREMENT TECHNIQUE UNDER LIGHTNING STRIKE TEST Reviewed

2013.09

APPLICATION OF NEW VISUALIZATION EQUIPMENT TO IDENTIFY THE SOURCE POSITION OF THE DISCHARGE-EMITTED ELECTROMAGNETIC WAVES TO THREE-PHASE ELECTRIC POWER APPARATUS Reviewed

R. Fuchi, H. Shibata, T. Umegane, Shinya Ohtsuka, A. Izena, H. Fukuda

18th International Symposium on High Voltage Engineering (ISH2013) PF-46 481 2013.08

SOPHISTICATED MEASUREMENT OF PD CURRENT PULSES IN INSULATION OIL AND THE EFFECTS OF DEAERATION TREATMENT ON THE WAVEFORMS WITH THE SHF_PDPW SYSTEM Reviewed

Minoru Fukuzaki, Takuya Matsumoto, Shinya Ohtsuka

18th International Symposium on High Voltage Engineering (ISH2013) PD-44 272 2013.08

RELATIONSHIP BETWEEN PD CURRENT PULSE WAVEFORMS AND THE EMITTED ELECTROMAGNETIC WAVES IN SF6 ALTERNATIVE GASES WITH THE SHF_PDPW SYSTEM Reviewed

Takuya Matsumoto, Minoru Fukuzaki, Shinya Ohtsuka

18th International Symposium on High Voltage Engineering (ISH2013) OD3-05 205 2013.08

DIFFRACTION PHENOMENON AND PROPAGATION PROPERTIES OF DISCHARGE-EMITTED ELECTROMAGNETIC WAVE AROUND THE OPERATING GIS EQUIPMENT Reviewed

T. Umegane, H. Shibata, R. Fuchi, S. Ohtsuka, A. Izena, H. Fukuda

18th International Symposium on High Voltage Engineering (ISH2013) OF6-01 429 2013.08

Time sequential properties of partial discharge current pulses in SF6 gas and dry air under dc voltage application Reviewed

M. Okamoto, S. Ohtsuka

18th International Symposium on High Voltage Engineering (ISH2013) PD-41 269 2013.08

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Papers - OHTSUKA Shinya