Results 11 to 20 of about 3,916 (177)

Lightning‐Induced Overvoltage on Overhead Distribution Line via Hybrid MTL‐PEEC Method

open access: yesHigh Voltage
Transient simulation are more economical and adaptable means of studying lightning overvoltage for overhead distribution line system compared to experiments. A hybrid multi‐transmission‐line (MTL)‐partial element equivalent circuit (PEEC) method proposed
Runyu Fu   +7 more
doaj   +2 more sources

Safety Listening in High-Risk Situations: A Qualitative Analysis of Responses to Safety Voice in Aviation. [PDF]

open access: yesRisk Anal
ABSTRACT Safety listening—responses to voice acts aimed at preventing harm—can avert organizational failures like airplane crashes. Research often focuses on attitudes and perceptions of listening using self‐report measures; consequently, little is known about how safety listening occurs behaviorally and influences safety outcomes in high‐risk ...
Pandolfo AM, Reader TW, Gillespie A.
europepmc   +2 more sources

Three‐phase overvoltage at lightning strike point due to direct triggered lightning to the phase wire of 10 kV power distribution line

open access: yesIET Generation, Transmission & Distribution, 2022
This paper reports the observation results of three‐phase overvoltage at the lightning strike point of a 1.5 km, 10 kV power distribution line that was struck directly by rocket triggered lightning to its phase wire C.
Jianguo Wang   +7 more
doaj   +1 more source

Propagation of positive, negative, and recoil leaders in upward lightning flashes

open access: yesEarth and Planetary Physics, 2019
Leader propagation is a fundamental issue in lightning physics. The propagation characteristics of positive leaders and negative leaders are summarized and compared based on data from high-speed camera and electromagnetic field in rocket-triggered ...
XiuShu Qie   +11 more
doaj   +1 more source

A Comprehensive Study on the Improved Radio-Frequency Magnetic Field Measurement for the Initial Upward Leader of a Negative Rocket-Triggered Lightning Flash

open access: yesRemote Sensing, 2021
The spectrum analysis of the lightning current in the experiment campaign of 2019 reveals that the lightning current waveform contains rich medium-frequency (MF) radiation signals in the initial stage.
Tao Shi   +4 more
doaj   +1 more source

Estimation of input energy in rocket‐triggered lightning [PDF]

open access: yesGeophysical Research Letters, 2006
Electric fields in the immediate vicinity (within 0.1 to 1.6 m) of the triggered‐lightning channel were measured with Pockels sensors at the International Center for Lightning Research and Testing at Camp Blanding, Florida. These fields and the associated currents measured at the base of a 2‐m strike object were used to compute the input power and ...
Vinod Jayakumar   +5 more
openaire   +1 more source

Differences between triggered lightning striking to ground and distribution line inferred from measured currents and electromagnetic fields

open access: yesHigh Voltage, 2022
In 2018–2019, two types of rocket‐triggered lightning tests, that is, striking to ground and distribution line, were conducted in Guangdong, China. The main focus of this paper is to compare the waveform parameters of the return strokes (RS) from the two
Li Cai   +6 more
doaj   +1 more source

Return stroke current reflections in rocket‐triggered lightning [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 2016
AbstractTen upward propagating return stroke currents in eight triggered lightning flashes have been observed to reflect downward from 140 to 300 m altitude by way of measurements of the channel base current, close electric field and electric field derivative, and high‐speed video.
J. A. Caicedo   +4 more
openaire   +1 more source

Wave Profile for Anti-force Waves with Maximum Possible Currents [PDF]

open access: yes, 2015
In the theoretical investigation of the electrical breakdown of a gas, we apply a one-dimensional, steady state, constant velocity, three component fluid model and consider the electrons to be the main element in propagation of the wave. The electron gas
Childs, W. P.   +3 more
core   +3 more sources

Wave Profile for Current Bearing Antiforce Waves [PDF]

open access: yes, 2013
For fluid dynamical analysis of breakdown waves, we employ a one-dimensional, three-component (electrons, ions and neutral particles) fluid model to describe a steady-state, ionizing wave propagating counter to strong electric fields.
Childs, W.   +4 more
core   +3 more sources

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