Results 141 to 150 of about 28,240 (304)
Thunderstorm characteristics favouring downward and upward lightning to wind turbines [PDF]
Meteorological conditions and thunderstorm characteristics related to lightning threats to wind turbines are discussed in this paper. Due to the rotating blades, wind turbines may be regarded peculiar tall objects, more susceptible to lightning strikes ...
Pineda, Nicolau +4 more
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High Voltage, EarlyView.ABSTRACT Tree‐contact single‐phase‐to‐ground fault (TSF) is a common and hazardous type of failure in distribution networks. TSF is likely to occur when overhead conductors contact moist tree branches, potentially leading to insulation breakdown, posing serious threats to grid safety.
Wenjun Ning +5 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT This paper investigates the generation mechanism of quasi‐power‐frequency resonant overvoltage triggered by multiple lightning strikes in high‐voltage alternating current (HVAC) systems equipped with shunt reactors. Based on field measurements from a 500 kV AC system, equivalent and simplified circuit models have been established to analyse ...
Tao Liang +7 more
wiley +1 more source
Severe lightning activity over the Czech republic [PDF]
, 2013 This work comprises an introduction to study of lightning and presents data about daily amount of lightning flashes over the Czech Republic (CR) in period 2002-2012.
Uhlíková, Tereza
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High Voltage, EarlyView.ABSTRACT To effectively suppress transient overvoltages in HVDC systems, the design and experimental validation of a multi‐module series controllable arrester are presented. The voltage‐limiting performance, series voltage equalisation capability, and robustness under fault conditions in high‐voltage scenarios require further research.
Tai Yang +4 more
wiley +1 more source
On the classification of self-triggered versus other-triggered lightning flashes [PDF]
We present in this paper lightning current measurements and LMA (Lightning Mapping Array) data associated with upward flashes observed at the Sàntis Tower during Summer 2017.
Pineda Rüegg, Nicolau +8 more
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High Voltage, EarlyView.ABSTRACT High voltage equipment, as a core component of power systems, plays an indispensable role in ensuring the reliability of power supply through its safe and stable operation. Traditional visual defect detection for high voltage equipment, however, often relies on manual inspection and experience‐based judgement, which struggles to meet the ...
Zhenbing Zhao +7 more
wiley +1 more source
Application Status and Development Trends of DC Ice‐Melting Devices in China's Power Grid
IET Smart Energy Systems, EarlyView.This paper summarises the development history and engineering application status of DC ice‐melting devices (DCIMD) in China, analyses the principles, advantages, disadvantages and adaptability of mainstream topologies and discusses the key problems and corresponding improvement directions.
Ming Lei +6 more
wiley +1 more source
Propagation of Lightning Through Thick Thunderclouds [PDF]
, 2015 The phenomenon that is lightning, have sparked the interest of physicists and scientists for centuries. The journey to understanding this phenomenon of high-current electric discharge, can unlock the secret to other lightning related phenomenons ...
Henry, Isaiah, Phanord, Dieudonné D.
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