Hiroyuki Hama

Risk assessment on defects in GIS based on PD diagnostics

Uwe Schichler, Wojciech Koltunowicz, F. Endo et al. · IEEE Transactions on Dielectrics and Electrical Insulation · 2013 · 105 citations

Engineering, Diagnosis, Risk Analysis +16

Cross-equipment study on charging phenomena of solid insulators in high voltage equipment

Hiroyuki Hama, Tomoyuki Hikosaka, Shigemitsu Okabe et al. · IEEE Transactions on Dielectrics and Electrical Insulation · 2007 · 102 citations

Electrical Engineering, Engineering, Specific Resistance +11

New aspects of UHF PD diagnostics on gas-insulated systems

Shigemitsu Okabe, Genyo Ueta, Hiroyuki Hama et al. · IEEE Transactions on Dielectrics and Electrical Insulation · 2014 · 65 citations

Uhf Pd, Electrical Engineering, Partial Discharge +14

UHF partial discharge detection system for GIS: Application guide for sensitivity verification: CIGRE WG D1.25

Uwe Schichler, Wojciech Koltunowicz, David Gautschi et al. · IEEE Transactions on Dielectrics and Electrical Insulation · 2016 · 48 citations

Electrical Engineering, Engineering, Radiation Detection +13

Common insulating properties in insulating materials

Shigemitsu Okabe, Naoki Hayakawa, Hiroshi Murase et al. · IEEE Transactions on Dielectrics and Electrical Insulation · 2006 · 42 citations

Materials Science, Materials Engineering, Electrical Engineering +12