Results 81 to 90 of about 55,602 (284)

Mineral Oil‐Induced Ageing Characteristics of Aluminium Nitride‐Doped Silicone Rubber Nanocomposites

open access: yesHigh Voltage, EarlyView.
ABSTRACT Room temperature vulcanised (RTV) silicone rubber, commonly used as an external insulating coating on ceramic bushings of oil‐immersed transformers, undergoes significant degradation when exposed to mineral oil under harsh environmental conditions.
Dhanunjaya Naidu Vangapandu   +6 more
wiley   +1 more source

BE 400/18 kV Substation Renovation Project [PDF]

open access: yes, 2001
The 400/18 kV SPS main substation was designed for the 400 GeV SPS project and was commissioned in 1974. It has been upgraded several times to form the present 400/66/18 kV SPS and LEP transmission power comprising 490 MVA and 240 MVAR installed power ...
Delidais, M, Vairo, Antonio
core  

Investigation of the Evolution Mechanism and Multiphysics Coupling in Tree‐Contact Single‐Phase‐to‐Ground Fault

open access: yesHigh 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

Research of Influence of Grid Connection of Distributed Generation on Current Protection of Distribution Network

open access: yesGong-kuang zidonghua, 2011
The paper analyzed influence of grid connection of distributed generation on traditional current protection of distribution network, used Matlab/Simulink simulation software to prove influence of different capacities and grid connected positions of ...
TIAN Shu, LIU Ying, MEI Xiao-li
doaj  

Geomagnetically Induced Currents in the Irish Power Network during Geomagnetic Storms

open access: yes, 2016
Geomagnetically induced currents (GICs) are a well-known terrestrial space weather hazard. They occur in power transmission networks and are known to have adverse effects in both high and mid-latitude countries.
Alan G. Jones (1355523)   +9 more
core   +2 more sources

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

Reactive Power Compensation Scheme for Urban Rail Power Supply System Considering Main Substation Resource Sharing

open access: yesChengshi guidao jiaotong yanjiu
[Objective] The resource sharing among main substations in urban rail transit power supply system can lead to significant cost savings. In this context, it is essential to investigate reactive power compensation schemes for different phases of main ...
Liying LI   +7 more
doaj   +1 more source

Remote Monitoring System for a Photovoltaic Power Substation

open access: yesInternational Journal of Online and Biomedical Engineering (iJOE), 2015
After briefly analyzing the structure of a photovoltaic power substation monitoring system, a positioning system roadway based on blue tooth was put forward to connect with already existing communication and monitoring networks. A separate monitoring system for the environment is integrated with the former comprehensive automation system to create a ...
openaire   +2 more sources

Image Restoration Algorithm and Propagation Mechanism of Partial Discharge Streamer in Oil–Pressboard Insulation Needle–Plate Electrode

open access: yesHigh Voltage, EarlyView.
ABSTRACT Oil–pressboard system is the main insulation form of oil‐immersed transformers, which is prone to partial discharge (PD) and subsequent faults due to contamination or moisture ingress. To investigate the evolutionary characteristics of PD streamers under varying voltages and insulation dimensions, streamer images were captured using a high ...
Luyao Liu   +5 more
wiley   +1 more source

Power System and Substation Automation

open access: yes, 2012
Automation is ?the application of machines to tasks once performed by human beings, or increasingly, to tasks that would otherwise be impossible?, Encyclopaedia Britannica [1]. The term automation itself was coined in the 1940s at the Ford Motor Company.
openaire   +2 more sources

Home - About - Disclaimer - Privacy