A calculable impulse voltage calibrator for calibration of impulse digitizers. - Jari K. Hällström; Yury Chekurov; Martti M. Aro (IEEE Trans. Instrum. Meas., 2003)

Comparison of two impulse calibrators with a high-resolution digitizer. - Yi Li; Jari K. Hällström; Wolfgang Lucas (IEEE Trans. Instrum. Meas., 2005)

Worldwide Comparison of Lightning Impulse Voltage Measuring Systems at the 400-kV Level. - Jari K. Hällström; Martti M. Aro; Anders Bergman; V. Bovier-Lapierre; F. Garnacho; J. I. Juvik; V. Kiseliev; Z. Lian Hong; Wolfgang Lucas; Yi Li; M. L. Pykälä; Juris Rungis; et al. (IEEE Trans. Instrum. Meas., 2007)

High-Accuracy Comparison of Lightning and Switching Impulse Calibrators. - Takayuki Wakimoto; Jari K. Hällström; Yury Chekurov; Masaru Ishii; Wolfgang Lucas; Jukka Piiroinen; Hiroyuki Shimizu (IEEE Trans. Instrum. Meas., 2007)

Onsite Calibration of a Current Transformer Using a Rogowski Coil. - Esa-Pekka Suomalainen; Jari K. Hällström (IEEE Trans. Instrum. Meas., 2009)

Comparison of Asynchronous Sampling Correction Algorithms for Frequency Estimation of Signals of Poor Power Quality. - Rado Lapuh; Paul Clarkson; Umberto Pogliano; Jari K. Hällström; Paul S. Wright (IEEE Trans. Instrum. Meas., 2011)

Performance of a Wideband 200-kV HVDC Reference Divider Module. - Jari K. Hällström; Anders Bergman; Serkan Dedeoglu; Alf-Peter Elg; Ernest Houtzager; Wolfgang Lucas; Ahmet Merev; Johann Meisner; Matthias Schmidt; Esa-Pekka Suomalainen; Christian Weber (IEEE Trans. Instrum. Meas., 2014)

Tail-Chopped Lightning Impulses Time Parameters Estimated According to Standard IEC 60060-1: 2010. - Carlos R. Hall Barbosa; Jari K. Hällström; Marcio Thelio Fernandes da Silva; Luiz Carlos Azevedo; Lucas Castro Faria (IEEE Trans. Instrum. Meas., 2015)

Traceability and Characterization of a 1000 kV HVDC Reference Divider. - Alf-Peter Elg; Anders Bergman; Jari K. Hällström; Mohammad Kharezy; Tatu Nieminen (IEEE Trans. Instrum. Meas., 2015)

Performance of a Modular Wideband HVDC Reference Divider for Voltages up to 1000 kV. - Jari K. Hällström; Anders Bergman; Serkan Dedeoglu; Alf-Peter Elg; Ernest Houtzager; Joni V. Klüss; Tapio Lehtonen; Wolfgang Lucas; Johann Meisner; Ahmet Merev; Tatu Nieminen; Matthias Schmidt; et al. (IEEE Trans. Instrum. Meas., 2015)

A Reference System for Measuring High-DC Voltage Based on Voltage References. - Ahmet Merev; Jari K. Hällström (IEEE Trans. Instrum. Meas., 2015)

Optical voltage sensor for MV networks. - Grzegorz Fusiek; John Nelson; Pawel Niewczas; Jussi Havunen; Esa-Pekka Suomalainen; Jari K. Hällström (IEEE SENSORS, 2017)

Application of Charge-Sensitive Preamplifier for the Calibration of Partial Discharge Calibrators Below 1 pC. - Jussi Havunen; Jari K. Hällström (IEEE Trans. Instrum. Meas., 2019)

Reference Switching Impulse Voltage Measuring System Based on Correcting the Voltage Divider Response With Software. - Jussi Havunen; Jari K. Hällström (IEEE Trans. Instrum. Meas., 2021)

Empirical Characterization of Cable Effects on a Reference Lightning Impulse Voltage Divider. - Jussi Havunen; Stephan Passon; Jari K. Hällström; Johann Meisner; Tim Christoph Schlüterbusch (IEEE Trans. Instrum. Meas., 2023)