Results 31 to 40 of about 9,923 (283)

Measurement and Modelling of Leakage Current Behaviour in ZnO Surge Arresters under Various Applied Voltage Amplitudes and Pollution Conditions

Energies, 2018
In zinc oxide (ZnO) surge arresters, leakage current usually flows across the arrester under normal operating condition. Leakage current is one of the factors which contribute towards degradation of surge arresters and therefore, it is very important to ...
Nurul A. A. Latiff, Hazlee A. Illias, Ab H. A. Bakar, Sameh Z. A. Dabbak   +3 more
doaj   +1 more source

Enhancing the Protective Performance of Surge Arresters against Indirect Lightning Strikes via an Inductor-Based Filter

Energies, 2020
Preventing the medium voltage (MV) transformer fault by protecting transformers against indirect lightning strikes plays a crucial role in enhancing the continuous service to electricity consumers.
Mahdi Pourakbari-Kasmaei, Matti Lehtonen
doaj   +1 more source

ELECTRIC STRENGTH OF ARRESTER FOR LIGHTING SHIELDING OF 6-35 KV TRANSMMCSION LINE WITH LIGHTNING OVERVOLTAGE

Записки Горного института, 2018
The most common device for protection against overvoltages is a valve-type arrester. Due to obsolescence it is proposed to replace valve-type arresters with nonlinear overvoltage limiters or multi-chamber arresters.
R. A. Bel'skii, V. Ya. Frolov, G. V. Podporkin   +2 more
doaj   +1 more source

Prediction of switching transients in high voltage air-insulated substations [PDF]

, 2009
Describes the process of prediction of switching transients in high voltage air-insulated ...
Judd, M.D., Musa, B.U., Siew, W.H.
core  

A wireless system for monitoring leakage current in electrical substation equipment [PDF]

, 2016
In this paper, the design and the development of a remote system for continuous monitoring of leakage currents and ground currents in high voltage electrical substations are proposed.
Bogias, A. C., Griffiths, Huw, Haddad, Abderrahmane, Harid, N., Robson, S.   +4 more
core   +1 more source

Phase‐Pure and Size‐Tunable Tin Halide Perovskite Quantum Dots

Advanced Materials, EarlyView.
A trioctylphosphine oxide modulated protocol allows for the synthesis and study of the optical properties of a broad library of tin halide perovskite quantum dots across multiple A‐ and X‐site compositions with precise size tuning while eliminating unwanted 2D phases.
Ole F. Dressler, Benjamin Aymoz, Sebastian Sabisch, Stefanie Frick, Sebastian Siol, Dmitry N. Dirin, Simon C. Boehme, Maksym V. Kovalenko   +7 more
wiley   +1 more source

Evaluation and Prediction of Over-Voltages Effects Caused by Direct/Indirect Lightning Stroke on Complex Power Distribution Networks Using High Frequency Modeling of the Components [PDF]

مجله مدل سازی در مهندسی, 2018
In this paper by transient behavior modeling of all components in the distribution network, the overvoltages caused by direct and indirect of lightning strokes has been predicted.
faridodoin safaei, nabiollah ramezani, milad niazazari   +2 more
doaj   +1 more source

Advanced Separators for Liquid and Quasi‐Solid Lithium Rechargeable Batteries: Design and Development

Advanced Materials, EarlyView.
This review traces the evolution of lithium‐ion battery separators from passive barriers to multifunctional components central to cell safety and performance. Polymer‐ceramic hybrids, nanofiber architectures, and bio‐derived membranes deliver ionic conductivities above 3 mS cm−1, thermal stability beyond 200 °C, and effective suppression of lithium ...
Karthik Vishweswariah, Ningaraju Gejjiganahalli Ningappa, Anil Kumar M. R., Jeremy I. G. Dawkins, Thiago M. G. Selva, Karim Zaghib   +5 more
wiley   +1 more source

Aging monitoring and fault positioning for zinc oxide surge arresters based on the fifth harmonic of the leakage current

Frontiers in Physics
Current techniques for aging monitoring and fault positioning for zinc oxide surge arresters usually use the third harmonic of the leakage resistive current.
Yongling Lu, Zhitong Xue, Jiahao Guo, Chenyu Zhang, Jian Liu, Xiaolong Xiao, Jian Sun   +6 more
doaj   +1 more source

Evaluation of the EMC environment generated by a static var compensator [PDF]

, 2009
Describes an evaluation of the EMC environment generated by a static var ...
Li, Q., Siew, W.H., Wang, W., Zhang, L.
core