Results 21 to 30 of about 9,923 (283)

Frequency and Time Series Analysis of Surge Arrester in Power Distribution Systems [PDF]

open access: yesAdvances in Engineering and Intelligence Systems
Surge arresters are essential protective devices in power systems that redirect excess voltage and prevent damage to sensitive equipment. Extensive research has been conducted in electro-thermal modeling for surge arresters to better understand and ...
Alireza Zabihi, Mohammad Parhamfar
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  

Environmentally friendly compact air-insulated high-voltage substations [PDF]

open access: yes, 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.
Albano, Maurizio   +3 more
core   +2 more sources

Generator step up transformer overvoltage protection in EPS power plants [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2015
This paper presents the current state of the overvoltage protection of generator transformers in power plants of the Power Company of Serbia (EPS) and gives a critical overview of their overvoltage protection.
Mrvić Jovan   +2 more
doaj   +1 more source

Investigation of Diagnostic Techniques for Metal Oxide Surge Arresters [PDF]

open access: yes, 2005
Gapless metal oxide surge arresters(MOSA)have been available in the market for many years since they were first introduced in the 1970's. The aim of this study is to investigate some reliable diagnostic techniques to assess the condition of a metal oxide
Mardira, Karl P.   +2 more
core   +1 more source

Adjusting the Parameters of Metal Oxide Gapless Surge Arresters’ Equivalent Circuits Using the Harmony Search Method

open access: yesEnergies, 2017
The appropriate circuit modeling of metal oxide gapless surge arresters is critical for insulation coordination studies. Metal oxide arresters present a dynamic behavior for fast front surges; namely, their residual voltage is dependent on the peak value,
Christos A. Christodoulou   +4 more
doaj   +1 more source

Online Condition Monitoring of 120 kV Zinc Oxide Surge Arresters Using Correlation Method

open access: yesEngineering Proceedings, 2023
The degradation of Zinc Oxide Surge Arresters (ZnOSA) is commonly detected by the resistive component of its leakage current ‘Ir’. The methods previously employed to extract the resistive component of the leakage current were intricate and demanded a ...
Syeda Sakina Haider   +4 more
doaj   +1 more source

Modeling Metal Oxide Surge Arrester for the Modern Polarization Based Diagnostics [PDF]

open access: yes, 2005
Recently a number of new non-destructive diagnostic techniques have been investigated for the reliable condition assessment of the ageing of metal oxide surge arrester (MOSA).
Mardira, K. P., Saha, T. K.
core   +1 more source

The problem of the actual insulation coordination for 500 kV with overvoltage in substations and the needed for more surge arresters in high voltage grid

open access: yesAin Shams Engineering Journal, 2023
The new extra high voltage overhead lines and substations have increased the overvoltage phenomenon in the electrical interconnected system, especially in high voltage circuit breakers operate in a failure condition.
Ricardo Manuel Arias Velásquez   +1 more
doaj   +1 more source

Efficient replacement of the radioactive sources in the gas-filled surge arresters construction for the insulation co-ordination at the low voltage level [PDF]

open access: yesNuclear Technology and Radiation Protection, 2020
The possibility of the classical response rate engineering and the long-term deconditioning of the gas-filled surge arresters is considered in this paper. The obtained results are compared with the same results obtained with the gas-filled surge
Nedić Teodora M.   +3 more
doaj   +1 more source

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