Calibration of pulse wave lightning protection component tester and analysis of measuring results

Xinyan Wang, Shang Wang, Xiaoyan Sun, Xiao Liu, Hongrui Yan, Xuefeng Ma

Abstract

A high precision calibration method, based on extreme value measurement, data storage, fast sampling and the simulation of actual use state, for new-type pulse wave lightning protection component tester was proposed after analyzing working principle and difficulties of measurement. This method replaced the conventional measurement method, reading method and sampling method for constant wave, ensured the accuracy of calibration at the same time, and realized the calibration of constant current, initial operating voltage, DC leakage current and DC breakdown voltage of the tester. This method met the requirements of accurate measurement of fast instantaneous signal, and improved the loading mode of traditional measurement by putting the varistor and DC resistor together as the load and simulating the breakdown state with voltage breakdown simulation device. By establishing a measurement model and evaluating the measurement uncertainty, it was concluded that the uncertainty was less than a third of the absolute value of the maximum permit error of the tester.

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IMEKO-TC4-2022-67.pdf

DOI

10.21014/tc4-2022.67

IMEKO TC

TC4 - Measurement of Electrical Quantities

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