Results 31 to 40 of about 14,323 (250)

Condition Assessment of Field-Aged Composite Insulators Following Incidents of Insulator Flashunder

open access: yesEnergies
A condition assessment of a group of field-aged insulators operated for only 6 years on the island of Rhodes after incidents of intense electrical activity is presented in this paper.
Nikolaos Mavrikakis, Kiriakos Siderakis
doaj   +1 more source

Environmentally Friendly Compact Air-Insulated High-Voltage Substations

open access: yesEnergies, 2018
This paper investigates the possible options for achieving a substantial reduction in a substation footprint using air-insulated switchgear as a more environmentally-friendly alternative to gas-insulated substations that use SF6 gas.
Maurizio Albano   +3 more
doaj   +1 more source

Load flow, short circuit and motor starting studies in electrical power substations.

open access: yesITEGAM-JETIA
Power system studies are essential for the proper planning and design of electrical power substations. This paper presents the load flow, short circuit, and motor starting studies for 33/6.6/0.44 kV electrical power substation.
Mohan Muniappan
doaj   +1 more source

Computation of transient electromagnetic fields due to switching in high voltage substations

open access: yes, 2010
Switching operations of circuit breakers and disconnect switches radiate transient electromagnetic fields within high-voltage substations. The generated fields may interfere and disrupt normal operations of electronic equipment.
Siew, W.H., Musa, B.U., Judd, M.D.
core   +1 more source

Research on automatic location and recognition of insulators in substation based on YOLOv3

open access: yesHigh Voltage, 2019
With the development of a smart grid, the automatic location of power equipment is becoming a trend. In this study, a method for automatic location identification and diagnosis of external power insulation equipment based on YOLOv3 is proposed. This deep
Yunpeng Liu   +6 more
doaj   +1 more source

Cyclodextrins as Chiral Selectors in Capillary Electrophoresis—Recent Developments in Understanding Analyte Complexation and Applications in Pharmaceutical Analysis

open access: yesELECTROPHORESIS, EarlyView.
Cyclodextrins are the most often applied chiral selectors in CE enantioseparations. In combination with NMR spectroscopy and molecular modeling, studies for an understanding of chiral recognition underlying enantioseparations have been performed.
Gerhard K. E. Scriba
wiley   +1 more source

Calculation and protection on the lighting intruding waves of 550 kv GIS substation

open access: yesThe Journal of Engineering, 2018
Electromagnetic Transient Programme has been used to calculate the lightning intruding wave of 550 kV GIS substation. The effects of mode operation, surge impedance and length of cable have been considered in the process of calculation.
Dongpeng Sui   +5 more
doaj   +1 more source

State assessment of 110–220 kV intelligent substation based on multisensor fusion algorithm control and image vision

open access: yesFrontiers in Energy Research, 2023
With the development of modern information technology, intelligent substation technology has been widely used, which greatly promotes the development of power grid.
Weiyan Zhao   +5 more
doaj   +1 more source

A Review of Overcurrent Protection in Smart Grids Under Cyber‐Physical Threats With a Cyber‐Physical Evaluation Framework

open access: yesEnergy Science &Engineering, EarlyView.
By manipulating current and voltage measurements, an assailant can induce unwanted relay action while attempting to avoid detection. Detecting advanced cyber intrusions in power protection environments requires specialised data analysis and anomaly detection methods.
Feras Alasali   +6 more
wiley   +1 more source

Classification of common discharges in outdoor insulation using acoustic signals and artificial neural network

open access: yesHigh Voltage, 2019
Condition monitoring of outdoor insulation systems is crucial to the integrity of distribution and transmission overhead lines and substations. The objective of this study is to use a commercial acoustic sensor along with artificial neural network (ANN),
Satish Polisetty   +4 more
doaj   +1 more source

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