JHILL is introducing our activities and the products through the papers to technical journal, domestic/international academic societies and symposiums at any time.

2022

September: The 3rd proficiency testing for High voltage testing

March: Long-Term Stability of Reference Measuring System for Impulse High Voltage, IEEJ Transactions on Electrical and Electronic Engineering, Vol. 17, No. 3, p. 369-377, 2022

2021

December: Calibration Scheme of Impulse-High-Voltage Measuring System Traceable to National Standards of Japan, IEEJ Transactions on Electrical and Electronic Engineering, Vol. 16, No. 12, pp. 1664-1671, 2021

2020

September: The 2nd proficiency testing for High voltage testing

2019

April: Development and Experience of Proficiency Test Scheme for High Voltage Testing,CIGRE-IEC 2019 Conference on EHV and UHV (AC&DC)

2018

September: Start the proficiency testing for High voltage testing

2017

September: Comparison Test of Switching-Impulse-High-Voltage Measuring Systems in Japan, ISH2017

2015

November: "Comparison Test of High-Voltage Measuring Systems for Lightning Impulse in Japan", IEEJ Trans. PE, Vol. 135,No. 11 P 675-680

2014

November: "Comparison Test of Lightning Impulse High Voltage Measuring System in Japan", International Workshop on High-Voltage Engineering, ED-14-097 SP-14-053, HV-14-109, Okinawa, Japan

March: Voltage Measuring System with Zener-diode, 2014 National Convention Record I.E.E. Japan

March: Development of Calibrator for Impulse Voltage Measuring System,2014 National Convention Record I.E.E. Japan

2013

September: Design for Impulse Current Calibrator, CIGRE D1 WG35 IWD

September: EURAMET meeting of high voltage metrology experts,Brisbane, Australia

September: CIGRE D1. WG35, Brisbane, Australia

August: “Uncertainty of Time-Parameter Measurement of High Voltage Full Lightning Impulse by National-Standard Class Measuring System”, XVIII International symposium on high voltage engineering, Paper OC2-05, Seoul, Korea

March: 2013 National Convention Record I.E.E. Japan
Symposium S10:Trend of International Standardization of High Voltage and High Power Measurement (Tokyo)

2012

December: Evaluation of Standard Impulse Voltage/Current Measuring Systems in Japan, , IEEJ Trans. on Electrical and Electronic Engineering, Vol. 7, No. S1

October: Domestic comparison test of the measuring system for lightning impulse voltage measurements (- Nov. 2012)

August: Step Response Test and Comparison Test Results for Impulse Current Standard Measuring System, CIGRE WG D1.35 IWD

August: EURAMET meeting of high voltage metrology experts, Stockholm, Sweden

August: CIGRE D1. WG35, Stockholm, Sweden

July: Application of Step-response Test for Evaluation of Uncertainty of Standard Measuring System for Lightning-Impulse High Voltage, Electrical Engineering in Japan, Volume 180, Issue 2, 30 July 2012, Pages: 24-32

March: International Comparison of Standard Systems for Impulse Current Measurement, IEEJ Trans. on Electrical and Electronic Engineering, Vol. 7, No. 2, pp. 161-165

february: Development of Impulse Voltage Calibrator for Standard Measuring System, IEEJ Trans. on Power & Energy, Vol. 132 No.2 pp.207-208 (in Japanese)

2011

August: UNCERTAINTY OF PEAK-VALUE MEASUREMENT OF LIGHTNINGIMPULSE HIGH VOLTAGE BY NATIONAL-STANDARD-CLASS MEASURING SYSTEM, XVII International symposium on high voltage engineering, Paper C-027, Hannover, Germany

August: COMPARISON TEST OF TRANSDUCERS AND REFERENCE SYSTEM FOR IMPULSE CURRENT MEASUREMENT, ISHXVII International symposium on high voltage engineering, Paper C-028, Hannover, Germany

August: EURAMET meeting of high voltage metrology experts, Stralsund, Germany

August: CIGRE D1. WG35, Hannover, Germany

May: Application of Step-response Test for Evaluation of Uncertainty of Standard Measuring System for Lightning-Impulse High Voltage, IEE of Japan Trans. on Power & Energy, Vol. 131, No. 5, (in Japanese)

March: Latest research on the standard of impulse voltage measurement in Japan, Technical Meeting on High-Voltage Technology between Thai and Japanese Universities, Bangkok, Thailand

2010

August: EURAMET meeting of high voltage metrology experts, Funchal, Portugal

August: CIGRE D1. WG35, Funchal, Portugal

January: International comparison test for the impulse current measuring system(with KERI, KOREA)

2009

November: Regular calibration of the national standard impulse voltage measuring system

August: EURAMET meeting of high voltage metrology experts, Budapest, Hungary

August: CIGRE D1.33 WG01, Budapest, Hungary

August: Stability of Step-response Parameters of Standard Impulse Voltage Divider for Lightning Impulse, 16th International Symposium on High voltage Engineering

July: Stability of Step-Response Parameters of Standard Impulse Voltage Divider for Lightning Impulse, IEE of Japan Trans. on Power & Energy, Vol. 129, No. 7, (in Japanese)

June: Domestic comparison test for the impulse current measuring system (-Aug.2010)

2008

November: Regular calibration of the national standard impulse voltage measuring system

August: EURAMET meeting of high voltage metrology experts, Mallorca, Spain

August: CIGRE D1.33 WG01, Mallorca, Spain

2007

November: Regular calibration of the national standard impulse voltage measuring system

May: Latest research activity on the standard of high-voltage impulse in Japan, IEEJ Trans. on Electrical and Electronic Engineering, Vol. 2, No. 5

April: High Accuracy Comparison of Lightning and Switching Impulse Calibrators, IEEE Trans. Instrumentation and Measurement, Vol.56 No.2

February: nternational Comparison Test in Asia-Pacific Region for Impulse Voltage Measurements, IEE of Japan Trans. on Power & Energy, Vol.127, No.2, (in Japanese)

January: Construction and Performance Evaluation of Calibration System for Low Voltage Impulse, IEE of Japan Trans. on Power & Energy, Vol.B127, No.1, (in Japanese)

January: Performance Evaluation of National Standard Class Measurement System for Lightning Impulse Voltage, IEE of Japan Trans. on Power & Energy, Vol.B127, No.1, (in Japanese)

2006

December: Uncertainty Evaluation of National Standard Class Impulse Calibrator, IEE of Japan, Vol. B126, No. 12, (in Japanese)

2005

August: Comparisons between impulse voltage calibrators and digitizers, 14th International Symposium on High Voltage Engineering

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