Results 41 to 50 of about 5,253 (287)

Analysis of grounding system transient with consideration of soil ionization and mutual coupling effect

Journal of Electrical Systems and Information Technology, 2023
The grounding system of an electrical substation provides safety to both operator and equipment. The lightning current waveform has a major influence on the dynamic performance of ground electrodes.
Kaushal Pratap Sengar, Kandasamy Chandrasekaran   +1 more
doaj   +1 more source

The Current Releasing Characteristics of DC Vertical Earthing Electrode Forming an Elliptical Ring

Zhongguo dianli, 2021
The vertical DC grounding electrode forming an elliptical ring occupies a relative small land and has strong topography adaptability, which makes it worth to be widely applied.
Yang CHEN
doaj   +1 more source

Ensuring the reliability of energy systems through the application of a new method for introducing soil-replacement mixtures during the installation of deep grounding devices [PDF]

E3S Web of Conferences
This paper discusses a method for using mixtures to optimize the electrical parameters of grounding devices during the installation of vertical composite ground electrodes.
Pavlovich Ivan, Baraishuk Siarhei, Murodov Muzaffar, Abdulkhayev Khurshed   +3 more
doaj   +1 more source

Computation of ground potential rise and grounding impedance of simple arrangement of electrodes buried in frequency-dependent stratified soil [PDF]

, 2021
Grounding electrodes are used to provide a low-impedance dissipation path for the excess lightning or fault currents. Several studies have been dedicated to the computation of the grounding impedance of different electrode arrangements considering either
de Seixas, Claudiner M., Justo de Araújo, Anderson R., Kordi, Behzad, de Araújo, Anderson R.J., Salarieh, Bamdad, Kurokawa, Sérgio [UNESP], Colqui, Jaimis S.L. [UNESP], Kurokawa, Sérgio, Colqui, Jaimis S.L., Pissolato Filho, José   +9 more
core   +1 more source

Novel Grounding Electrode Model with Axial Construction Space Consideration [PDF]

, 2019
Grounding electrodes are used to ensure safe operation of electrical apparatus. The limited axial construction space for grounding electrodes is a significant constraining factor.
Zhanlong Zhang, Yiqiao Li, Jing Zou, Yihua Dan, Jun Deng   +4 more
core   +1 more source

Understanding of Grounding Systems' Performance with Equivalent Circuit Model [PDF]

, 2021
It has been known that under high impulse conditions, a non-linearity in some practical grounding electrodes, subjected to fast surges was observed. Inductive component can also be significant in grounding electrodes subjected to high impulse conditions,
Syed Abdullah, Syarifah Amanina, Ahmad, Nurul Nadia, Nazihah Kamarulzaman, Syarifah Amanina Syed Abdullah, Kamarulzaman, Nazihah, Mohamad Nor, Normiza, Nurul Nadia Ahmad, Normiza Mohamad Nor   +7 more
core   +1 more source

Effect of Ground Electrodes on the Susceptibility to Damage of Customer Premises Equipment (CPE) under Impulse Conditions

Energies, 2022
One of the requirements for the safe operation of customer premises equipment (CPE) is an adequate grounding system as a means to divert high fault currents to the ground.
Usman Muhammad, Normiza Mohamad Nor, Annuar Mohd Ramli, Nurul Nadia Ahmad   +3 more
doaj   +1 more source

Electric descriptions of two-level equipotential grounding device made from single circular electrodes [PDF]

, 2008
Предложена методика оценки аналитическим путем электрических параметров двухуровневой конструкции заземлителя из кольцевых электродов. Новизну методики составляет учет произвольного расположения в грунте двух кольцевых заземлителей между собой ...
Нижевский, Виктор Ильич, Нижевский, Илья Викторович   +1 more
core   +4 more sources

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

Advanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin, Samson Dare Oguntuyi, Peter Apata Olubambi   +2 more
wiley   +1 more source

ON THE ISSUE OF DESIGN OF GROUNDING SYSTEMS OF 330(220) KV SUBSTATIONS TO ENSURE THE ELECTROMAGNETIC COMPATIBILITY OF SECONDARY CIRCUITS

Electrical engineering & Electromechanics, 2018
Purpose. The purpose of the work is to develop the fundamentals of the design methodology of grounding system design of substations with open switchgears 330 (220) kV, which is aimed at ensuring electromagnetic compatibility of secondary circuits of ...
O. Yu. Glebov, D. G. Koliushko, G. M. Koliushko, E. P. Eremeeva   +3 more
doaj   +1 more source