Results 21 to 30 of about 10,715 (249)

Insulation stresses of power equipment exposed to non-standard overvoltage waveforms [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2022
During its operation, electrical equipment is constantly exposed to overvoltages of various waveforms, such as lightning discharges, switching operations, faults, etc.
Jasika Ranko   +2 more
doaj   +1 more source

Battery choice and management for New Generation Electric Vehicles [PDF]

open access: yes, 2005
Different types of electric vehicles (EVs) have been recently designed with the aim of solving pollution problems caused by the emission of gasoline-powered engines.
Affanni, A.   +4 more
core   +1 more source

Study on internal overvoltages of 220 kV submarine cable transmission system of the offshore oil–gas field group

open access: yesEnergy Reports, 2022
Since the Electromagnetic Transient (EMT) process of the high-voltage submarine cable has a great influence on the safe and stable operation of the transmission system, it is necessary to analyze its EMT process under actual engineering.
Han Li   +3 more
doaj   +1 more source

Novel method for restraining 35 kV shunt reactor switching overvoltage – phase controlled breaker

open access: yesThe Journal of Engineering, 2019
Phenomena such as current chopping, arc reignition and equivalent current chopping might appear when cutting off shunt reactor. Overvoltage caused by switching will lead to interphase fault in related equipment and inter-turn insulation damage in the ...
Yiming Zheng   +5 more
doaj   +1 more source

Electromagnetic transient suppression for thyristor switch‐based auto‐passing neutral section system

open access: yesIET Power Electronics, 2023
The auto‐passing neutral section (ANS), applied in the traction substation or section post (SP), is one of the effective methods to improve the continuity of power supply, and the electromagnetic transient is the key issue impacting its application value.
Wu Liran   +3 more
doaj   +1 more source

An overview of biodiesel energy [PDF]

open access: yes, 2020
Over the last ten years’ attention to biofuels production has increased dramatically and become crucial. One of the main factors is the rise in world oil prices, coupled with the abatement of greenhouse gas emissions and concerns about energy security ...
Abd Halim, Muhamad Fazli   +3 more
core  

Partial discharge behavior under operational and anomalous conditions in HVDC systems [PDF]

open access: yes, 2017
Power cables undergo various types of overstressing conditions during their operation that influence the integrity of their insulation systems. This causes accelerated ageing and might lead to their premature failure in severe cases.
Azizian Fard, M.   +3 more
core   +3 more sources

A Gate Driver Based on Variable Voltage and Resistance for Suppressing Overcurrent and Overvoltage of SiC MOSFETs

open access: yesEnergies, 2019
A SiC MOSFET is a suitable replacement for a Si MOSFET due to its lower on-state resistance, faster switching speed, and higher breakdown voltage. However, due to the parasitic parameters and the low damping in the circuit, the turn-on overcurrent and ...
Jiangui Chen, Yan Li, Mei Liang
doaj   +1 more source

Analysis of Internal Overvoltages in Transformer Windings during Transients in Electrical Networks

open access: yesEnergies, 2020
Due to the increasing requirements for the reliability of electrical power supply and associated apparatus, it is necessary to provide a detailed analysis of the overvoltage risk of power transformer insulation systems and equipment connected to their ...
Jakub Furgał   +2 more
doaj   +1 more source

Power balancing and dc fault ride through in DC grids with dc hubs and wind farms [PDF]

open access: yes, 2015
Acknowledgment This project was funded by European Research Council under the Ideas program in FP7; grant no 259328, 2010.Peer ...
Jovcic, Dragan, Lin, Weixing
core   +1 more source

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