Narrow Band Field Measurement Generated By Lightning Flashes

Nazuha, Shaari (2013) Narrow Band Field Measurement Generated By Lightning Flashes. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Lightning is the most fabulous nature phenomena generally known as lightning flashes. The lightning flashes will generate electric field considered as radiations which are high and low frequency radiation. The measurement of the voltage between clouds to ground produce by the lightning flashes on the electric field intensity will contribute the very important information to the things that will be measured. Furthermore, this project will support the researcher or power engineer to understand about radiation field in which lightning activities that can harm the sensitive devices system. This project measurement have been done by the combination of flat plate antenna that will use to sense the induced voltage produce by lightning flashes and the signal received will tune at interest frequency 3MHz with bandwidth operation in range 300kHz. The measurement was conducted at Faculty of Electrical Engineering, Universiti Teknikal Malaysia Melaka. The analysis has been done to determine the duration radiation of 3 MHz that produce from ground flashes which is return stroke flash. The mean duration and standard deviation for the radiation is 232.5μs and 134.5μs. Based on the comparison data from Sri Lanka and Sweden, the value are not different from the collected data. Besides, to get more smooth data, the measurement must use high technology equipment and at the place which have low resistance.

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