Title :
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
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;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6251053
