Naoki Hayakawa

A novel technique for partial discharge and breakdown investigation based on current pulse waveform analysis

H. Ōkubo, Naoki Hayakawa · IEEE Transactions on Dielectrics and Electrical Insulation · 2005 · 129 citations

Electrical Engineering, Partial Discharge, Novel Technique +11

Technical Development on Partial Discharge Measurement and Electrical Insulation Techniques for Low Voltage Motors Driven by Voltage Inverters

Hitoshi Okubo, Naoki Hayakawa, G Montanari · IEEE Transactions on Dielectrics and Electrical Insulation · 2007 · 102 citations

Electrical Engineering, Partial Discharge, Aerospace Electric Power +14

Partial discharge characteristics of inverter-fed motor coil samples under ac and surge voltage conditions

Naoki Hayakawa, H. Ōkubo · IEEE Electrical Insulation Magazine · 2005 · 94 citations

Repetition Rate, Twisted Pair, Electrical Engineering +12

Fabrication and simulation of permittivity graded materials for electric field grading of gas insulated power apparatus

Naoki Hayakawa, Junya Ishiguro, H. Kojima et al. · IEEE Transactions on Dielectrics and Electrical Insulation · 2016 · 94 citations

Materials Engineering, Materials Science, Electrical Engineering +12

The relationship between partial discharge current pulse waveforms and physical mechanisms

H. Ōkubo, Naoki Hayakawa, A. Matsushita · IEEE Electrical Insulation Magazine · 2002 · 92 citations

Electrical Engineering, Partial Discharge, Engineering +10