Results 221 to 230 of about 25,281,540 (303)

Analysis of the lightning impulse and low-frequency performance of wind farm grounding systems

Electric Power Systems Research, 2020
Previous analysis of the lightning response of wind turbine grounding systems has often considered only one unit. This paper investigates the impulse and low-frequency performance of isolated and interconnected grounding systems of wind turbines ...
Kazuo Yamamoto, Marco Aurelio De Oliveira Schroeder, Rafael Alipio   +2 more
exaly   +2 more sources

A comprehensive analysis of the effect of frequency-dependent soil electrical parameters on the lightning response of wind-turbine grounding systems

Electric Power Systems Research, 2019
The impact of frequency-dependent soil electrical parameters on the lightning response of typical wind turbine grounding systems is investigated. It is shown that the frequency dependence of soil parameters is responsible for decreasing the ground ...
Silverio Visacro, Kazuo Yamamoto, Rafael Alipio   +2 more
exaly   +2 more sources

Grounding systems

Wescon/96, 2002
Grounding provides the protection of equipment and people from hazardous conditions within the electrical system. The ground conductor and connection to earth must be of sufficiently low impedance and have the current carrying capacity to prevent the ...
E. B. Robertson
openaire   +2 more sources

Grounding systems under lightning surges with soil ionization for high voltage substations by using two layer capacitors (TLC) model

Electric Power Systems Research, 2019
The grounding system behavior in the time domain for the high voltage substations is the key-parameter to ensure the system reliability during transient conditions.
Samy Ghania
exaly   +2 more sources

Evaluation of the Impact of Including the Frequency-Dependent Behavior of Grounding Systems on the Lightning Performance of Transmission Lines and on Grounding Systems Design

Journal of Control, Automation and Electrical Systems, 2021
Rafael Alipio, Felipe Vasconcellos
exaly   +2 more sources

Analysis of Voltage Characteristics for Single-Phase Line Break Fault in Resonant Grounding Systems

IEEE Transactions on Power Delivery, 2023
With the rapid transition of overhead lines to covered conductors, line break fault occurs more frequently in resonant grounding systems. Line break fault, especially with earthing, requires comprehensive study.
He Li, Yongduan Xue, Mengqi Chen, Zhongxia Zhang   +3 more
semanticscholar   +1 more source

An FTU-Based Method for Locating Single-Phase High-Impedance Faults Using Transient Zero-Sequence Admittance in Resonant Grounding Systems

IEEE Transactions on Power Delivery, 2022
A novel fault location scheme using feeder terminal units (FTUs) for high-impedance grounding faults in resonant grounding systems (RGSs) is presented. The parallel resonance for a high-impedance fault (HIF) in an RGS with inverter-interfaced distributed
Jie Li, Yinliang Liu, Chengxin Li, Dehui Zeng, Haifeng Li, G. Wang   +5 more
semanticscholar   +1 more source

Evaluating the Impacts of Grounding Systems on Ground Currents and Transient Overvoltage

IEEE transactions on industry applications, 2022
This article presents a performance comparison of the solid, low impedance, high impedance, frequency-selective, and isolated grounding systems. A grounding system (for any power system component) is designed as an impedance ($\bar{Z}_{G}$) that connects
S. Saleh, D. Jewett, A. Al‐Durra, S. Kanukollu, J. Cardenas, M. Valdes, S. Panetta   +6 more
semanticscholar   +1 more source

Fast and Accurate Transient Analysis of Large Grounding Systems in Multilayer Soil

IEEE Transactions on Power Delivery, 2021
One of the most accurate approaches to the lightning-related transient analysis of grounding systems in layered soil is based on the method of moments solution of the integral form of the Maxwell equations.
B. Markovski, L. Grcev, V. Arnautovski-Toseva   +2 more
semanticscholar   +1 more source

Performance Testing of Different Grounding Systems

IEEE/IAS Industrial and Commercial Power Systems Technical Conference, 2022
This paper presents a performance comparison of the solid, low impedance, high impedance, frequency-selective, and isolated grounding systems. A grounding system (for any power system component) is designed as an impedance (Z̄G) that connects the neutral
S. Saleh, D. Jewett, J. Cárdenas, A. Al-Durra, S. Kanukollu, M. Valdes, S. Panetta   +6 more
semanticscholar   +1 more source