Results 1 to 10 of about 249 (97)

Insulation co-ordination and the enlargement law for the GM counter tube [PDF]

open access: yesNuclear Technology and Radiation Protection, 2016
In this paper we analyze application of contemporary methods of insulation co-ordination and the enlargement law in designing a GM counting tube.
Dolićanin Edin Ć.   +3 more
doaj   +4 more sources

Influence of ionizing radiation on the stochasticity of overvoltage protection at low, medium, and high voltage levels in gas surge arresters [PDF]

open access: yesNuclear Technology and Radiation Protection, 2023
The paper considers the possibility of improving the technical characteristics of gas surge arresters for the co-ordination of insulation at low voltage, medium voltage and high voltage levels. The idea for improving the characteristics of a gas
Jusić Alija R.   +2 more
doaj   +1 more source

Possibility of achieving an acceptable response rate of gas-filled surge arresters by substitution of alpha radiation sources by selection of electrode material and the electrode surface topography [PDF]

open access: yesNuclear Technology and Radiation Protection, 2020
The possibility of substituting the usage of a radioactive α-source to improve the characteristics of the gas surge arrester is considered in this paper.
Arbutina Dalibor S.   +4 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

Commutation overshoots based on a novel model for series thyristors during the turn-off process

open access: yesHigh Voltage, 2020
The commutation overshoot is an important reference index for the insulation coordination of the converter station as well as the thyristor voltage capacity.
Yingjie Tang   +4 more
doaj   +1 more source

Proposal for a General Atmospheric Correction Method of Breakdown and Withstand Voltages of Air-Gap Insulated Configurations Based on a Streamer–Leader Differentiated Model of the Breakdown Process

open access: yesEnergies, 2018
Current atmospheric correction methods for breakdown and withstand voltages in long air-gap configurations show deviations in comparison to measurement data when applied to correct for unusual or atypical atmospheric conditions (i.e., altitudes above ...
Uwe Schubert   +4 more
doaj   +1 more source

Research on optimisation of minimum air clearance of 1000 kV UHV AC substation

open access: yesThe Journal of Engineering, 2019
Based on air clearance discharge characteristic curve and insulation coordination method, it is pointed out that the minimum air clearance of 1000 kV ultra-high voltage (UHV) AC substation can be further optimised.
Li Zhenqiang   +3 more
doaj   +1 more source

Numerical calculation of the lightning transient voltage distribution on converter transformer winding based a dual winding model

open access: yesThe Journal of Engineering, 2019
The insulation co-ordination of converter transformer winding has a great influence on power system security. An equivalent circuit of a 500 kV converter transformer winding structure, including a LC equivalent network circuit and an ideal transformer in
Hongrui Jia   +4 more
doaj   +1 more source

A new method for surge arrester placement in high‐voltage substations considering environmental effects

open access: yesIET Science, Measurement & Technology
Conventional approaches for determining the optimal locations of surge arresters (SAs) can result in an unnecessary increase in the number of these devices in high‐voltage substations.
Faridoddin Safaei, Mohsen Niasati
doaj   +1 more source

How to: a practical guide to cardiac conduction devices on chest radiograph. [PDF]

open access: yesEur Heart J Imaging Methods Pract, 2023
Tun KS, Reidy D, Buckley U.
europepmc   +1 more source

Home - About - Disclaimer - Privacy