Coaxial attenuators for standard lightning impulse measurements

Author

Liu Na ; Wu Yiye ; Chen Jiawei

Author_Institution

Electr. & Quantum Div., Nat. Inst. of Metrol., Beijing, China

fYear

2012

fDate

1-6 July 2012

Firstpage

562

Lastpage

563

Abstract

Characteristics of coaxial resistive attenuators of digital instrument for the standard full lightning impulse(LI) measurement are studied. The amplitude - frequency characteristics and the input impedance of two kinds of attenuators are analyzed. An approach to evaluation the scale factor of peak voltage for the attenuators are introduced based on the comparison of the peak of the impulse output by a standard lightning impulse generator to that of a standard square wave with rise time of 1.4μs at voltage level of 100V, and the measurement uncertainty of the scale factor for peak value is less than 0.5%(k=2).

Keywords

attenuators; calibration; lightning; measurement uncertainty; oscilloscopes; pulse generators; voltage measurement; amplitude-frequency characteristics; coaxial resistive attenuator Characteristics; digital instrument; impulse voltage calibrator; input impedance; measurement uncertainty; oscilloscope; resistive impulse voltage attenuator; standard lightning impulse generator; standard lightning impulse measurements; time 1.4 mus; voltage 100 V; Attenuators; Frequency measurement; Impedance; Lightning; Oscilloscopes; Standards; Voltage measurement; Standard lightning impulse; attenuator; full lightning impulse; peak voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2012 Conference on

Conference_Location

Washington, DC

ISSN

0589-1485

Print_ISBN

978-1-4673-0439-9

Type

conf

DOI

10.1109/CPEM.2012.6251053

Filename

6251053