Results 61 to 70 of about 3,022 (160)

Experimental Study on Disintegration Characteristics of Water Droplets in Icicle‐Flat Plate Gap Beyond Critical Discharge Voltage

open access: yesHigh Voltage, EarlyView.
ABSTRACT The disintegration behaviour of ice‐melting droplets aggravates the discharge risk of ice‐covered insulators and the disintegration characteristics of droplets at applied voltages exceeding the critical discharge voltage lack in‐depth study.
Lin Yang   +6 more
wiley   +1 more source

Wave‐Velocity‐Based Temperature Monitoring Applied to Underground Power Cables in Medium‐Voltage Networks—Discrimination of Individual Cable Temperatures in a Distribution Grid

open access: yesHigh Voltage, EarlyView.
ABSTRACT The thermal state of underground power cables can be monitored based on the temperature dependency of the dielectric permittivity of the insulation material. The resulting temperature‐dependent wave velocity is used as a thermometric property. To this end, the signal propagation time along a cable of an injected signal is determined.
Peter Wouters   +2 more
wiley   +1 more source

SCREENING OF ADVANCED EXOTIC LINES OF WHEAT (TRITICUM AESTIVUM L.) TO IDENTIFY HIGH-YIELDING GENOTYPES UNDER LASBELA CLIMATIC CONDITION

open access: yesFUUAST Journal of Biology
This study aimed to assess the performance of advanced CIMMYT wheat germplasms for yield and related traits in diverse climatic conditions of Baluchistan.
ASADULLAH   +9 more
doaj  

An Overview of High‐Temperature Superconducting Cables in DC Systems: Unlocking Potential for High‐Voltage DC Networks

open access: yesHigh Voltage, EarlyView.
ABSTRACT This paper provides an overview of high‐temperature superconducting (HTS) cables in DC systems, with a focus on their deployment in high‐voltage DC (HVDC) networks. The assessment of HTS cable properties—such as extremely low electrical resistance, high current‐carrying capacity and a compact geometry—and their comparison with those of ...
Mohammad Hossein Mousavi   +2 more
wiley   +1 more source

Application of Service Oriented Architecture for Sensors and Actuators in District Heating Substations

open access: yesSensors, 2014
Hardwired sensor installations using proprietary protocols found in today’s district heating substations limit the potential usability of the sensors in and around the substations.
Jonas Gustafsson   +3 more
doaj   +1 more source

Temperature Extraction Scheme for Composite Insulator Core Rod Sheath of Overhead Transmission Lines Based on Oriented Bounding Boxes

open access: yesHigh Voltage, EarlyView.
ABSTRACT Unmanned Aerial Vehicle (UAV) inspection of overhead transmission line composite insulators allows for the rapid acquisition of large amounts of infrared images of insulators in service, which can be used to analyse their operational status. However, efficiently and accurately analysing these images remains a challenge.
Zhenan Zhou   +7 more
wiley   +1 more source

A Traction Three-Phase to Single-Phase Cascade Converter Substation in an Advanced Traction Power Supply System

open access: yesEnergies, 2015
The advanced traction power supply system (ATPSS) is a new directional development for traction power supply systems, which can totally remove the neutral sections and effectively promote power quality.
Xiaoqiong He   +5 more
doaj   +1 more source

PowerGPT‐R1: Vision‐Language Reinforcement Fine‐Tuning With Verifiable Reward for Power Inspection

open access: yesHigh Voltage, EarlyView.
ABSTRACT Vision‐driven intelligent power inspection systems have long faced the challenge of scarce high‐quality datasets in specialised domains, leading to limited performance of traditional deep learning methods (e.g., Faster‐RCNN) in few‐shot learning scenarios. Recent breakthroughs in language models, particularly the open‐source DeepSeek‐R1 model,
Yangyang Zhong   +12 more
wiley   +1 more source

A Review and Prospect of Appearance Defect Detection Methods for High Voltage Equipment Based on Vision Large Models

open access: yesHigh 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

A Key Management Schema Based on ECC to Secure the Substation and Control Center Communications in Smart Grids [PDF]

open access: yesComputer and Knowledge Engineering, 2019
Since the invention of electricity, global power grids have been at the forefront of technological advances. The antiquated infrastructure of power system which provides power to the city's homes, factories and businesses are replaced with a new power ...
mostafa Farhadi Moghadam   +2 more
doaj  

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