Results 31 to 40 of about 407,660 (382)

A Maintenance Cost Study of Transformers Based on Markov Model Utilizing Frequency of Transition Approach

Energies, 2018
In this paper, a maintenance cost study of transformers based on the Markov Model (MM) utilizing the Health Index (HI) is presented. In total, 120 distribution transformers of oil type (33/11 kV and 30 MVA) are examined.
Muhammad Sharil Yahaya, Norhafiz Azis, Amran Mohd Selva, Mohd Zainal Abidin Ab Kadir, Jasronita Jasni, Emran Jawad Kadim, Mohd Hendra Hairi, Young Zaidey Yang Ghazali   +7 more
doaj   +1 more source

Classification of VLF/LF Lightning Signals Using Sensors and Deep Learning Methods

Italian National Conference on Sensors, 2020
Lightning waveform plays an important role in lightning observation, location, and lightning disaster investigation. Based on a large amount of lightning waveform data provided by existing real-time very low frequency/low frequency (VLF/LF) lightning ...
Jiaquan Wang, Qijun Huang, Qiming Ma, Sheng Chang, Jin He, Hao Wang, Xiao Zhou, Fang Xiao, Chao Gao   +8 more
semanticscholar   +1 more source

Insights into ground strike point properties in Europe through the EUCLID lightning location system [PDF]

Natural Hazards and Earth System Sciences
Evaluating the risk of lightning strikes to a particular structure typically involves adhering to the guidance outlined in IEC 62305-2. Among the multitude of factors influencing the overall risk, flash density emerges as a crucial parameter.
D. R. Poelman, H. Kohlmann, W. Schulz
doaj   +1 more source

Thunderstorm Feature Dataset and Characteristics of Thunderstorm Activities in China

应用气象学报, 2021
A thunderstorm feature dataset (TFD) is built up based on the black body temperature (TBB) product and cloud classification (CLC) product of FY-2E meteorological satellite as well as the lightning data of the World-Wide Lightning Location Network (WWLLN).
Ma Ruiyang, Zheng Dong, Yao Wen, Zhang Wenjuan   +3 more
doaj   +1 more source

Lightning [PDF]

Nature, 1884
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openaire   +1 more source

Study of the B-Dot Sensor for Aircraft Surface Current Measurement

Sensors, 2022
The B-dot sensor is a type of Rogowski coil widely used in the measurement of current. However, the accuracy of the B-dot for measuring aircraft high-frequency lightning current is greatly affected by factors such as numerical integration drift, high ...
Chen Tong, Zemin Duan, Yeyuan Huang, Shanliang Qiu, Xiaoliang Si, Zhibao Li, Zhijie Yuan   +6 more
doaj   +1 more source

A Simplified Top-Oil Temperature Model for Transformers Based on the Pathway of Energy Transfer Concept and the Thermal-Electrical Analogy

Energies, 2017
This paper presents an alternative approach to determine the simplified top-oil temperature (TOT) based on the pathway of energy transfer and thermal-electrical analogy concepts.
Muhammad Hakirin Roslan, Norhafiz Azis, Mohd Zainal Abidin Ab Kadir, Jasronita Jasni, Zulkifli Ibrahim, Azalan Ahmad   +5 more
doaj   +1 more source

Correlation between Frequency-Divided Magnetic Field and Channel-Base Current for Rocket-Triggered Lightning

Remote Sensing, 2023
Different discharge processes of triggered lightning can radiate electromagnetic signals with different frequency bands. During the triggered-lightning experiment conducted at the Field Experiment Base on Lightning Sciences of China Meteorological ...
Yanfeng Fan, Yang Zhang, Weitao Lyu, Ying Ma, Bin Wu, Qi Qi, Dong Zheng, Gaopeng Lu, Ankun Wu   +8 more
doaj   +1 more source

Lightning [PDF]

General Science Quarterly, 1916
n ...
openaire   +2 more sources

Observation of the Whole Discharge Process During a Multi-stroke Triggered Lightning by Continuous Interferometer

应用气象学报, 2020
The discharge process is often discussed in the lightning physics. VHF (very high frequency) observations play an important role in studying lightning discharge processes, because they show where air breakdown occurs.
Zhang Yang, Chen Zefang, Wang Jingxuan, Fan Yanfeng, Zheng Dong, Lü Weitao, Zhang Yijun   +6 more
doaj   +1 more source