Results 11 to 20 of about 37,138 (253)

Combined Duval Pentagons: A Simplified Approach

open access: yesEnergies, 2020
The paper describes a newly proposed combination of the two existing Duval Pentagons method utilized for the identification of mineral oil-insulated transformers. The aim of the combination is to facilitate automatic fault identification through computer
Luiz Cheim, Michel Duval, Saad Haider
doaj   +1 more source

Numerical analysis of thermoelectric power generation coupled with temperature-dependent material properties

open access: yesFrontiers in Energy Research, 2023
Thermoelectric generator (TEG) with improved performance is a promising technology in power supply and energy harvesting. Existing studies primarily adopt constant material properties to investigate TEG performance.
Chaoyang Xu   +7 more
doaj   +1 more source

Introduction on Current Application of Voltage Transformer [PDF]

open access: yesE3S Web of Conferences, 2023
As an important equipment, voltage transformer is widely used in power grid to obtain voltage signal and protect the system. In this paper, the voltage transformers in power system are classified according to the working principle.
Yang Jun   +3 more
doaj   +1 more source

Generative Adversarial Networks Based Heterogeneous Data Integration and Its Application for Intelligent Power Distribution and Utilization

open access: yesApplied Sciences, 2018
Heterogeneous characteristics of a big data system for intelligent power distribution and utilization have already become more and more prominent, which brings new challenges for the traditional data analysis technologies and restricts the comprehensive ...
Yuanpeng Tan   +3 more
doaj   +1 more source

DC breakdown characteristics and charges accumulation behaviour of thermally upgraded paper aged in natural ester

open access: yesIET Science, Measurement & Technology, 2021
Considering that the working temperature is much higher in high‐voltage direct‐current (HVDC) convert transformers than in conventional AC transformers, the combination of thermally upgraded paper and natural ester might be a better choice to withstand ...
Runhao Zou   +4 more
doaj   +1 more source

Evaluation of Static Synchronous Compensator and Rail Power Conditioner in Electrified Railway Systems Using V/V and Scott Power Transformers [PDF]

open access: yesEAI Endorsed Transactions on Energy Web, 2021
In this paper a comprehensive review of electrified railway systems is carried out, identifying the electric power quality deterioration which may appear due to nonlinear dynamic traction loads.
Luis Barros   +4 more
doaj   +1 more source

Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids

open access: yesEnergies, 2021
Ester liquids are environmentally friendly insulating oils, and they can be used as an alternative to mineral oil in transformers, even though in most countries spills of ester oils must be treated like spills of mineral oil.
Huaqiang Li   +5 more
doaj   +1 more source

Комбінований фільтрокомпенсуючий пристрій

open access: yesElektrotehnìka ta Elektroenergetika, 2010
Пропонується схема комбінованого фільтрокомпенсуючого пристрою. Основні переваги фільтра полягають в автоматичній зміні параметрів компенсації вищих гармонік з мінімальними втратами електричної енергії при передачі реактивної потужності, а також у ...
V. V. Kushch   +3 more
doaj   +1 more source

Improvement of the evaluation method of calculation of power losses in power transformer

open access: yesElektrotehnìka ta Elektroenergetika, 2020
Purpose. The purpose of the work is to perform analytical analysis of methods for calculating power losses of a power transformer and to improve the estimation method of calculation to increase the accuracy of calculating power losses on the example of ...
O.S. Pidlisniy O.S., S.P. Lushchin
doaj   +1 more source

Design Implication of a Distribution Transformer in Solar Power Plants Based on Its Harmonic Profile

open access: yesEnergies, 2021
This article presents a comparative analysis for the design considerations for a solar power generation transformer. One of the main existing problems in transformer manufacturing is in the renewable energy field, specifically the solar power generation,
Iván Rafael Macías Ruiz   +5 more
doaj   +1 more source

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