Results 41 to 50 of about 1,997 (175)

Series Connection of LCC and Full Bridge MMC With DC Fault Ride‐Through Capability for Lightweight HVDC Transmission

Engineering Reports, Volume 8, Issue 4, April 2026.
In this work, we investigate a lightweight HVDC converter topology that combines the strengths of line‐commutated converters (LCC) and full‐bridge modular multilevel converters (MMC) to address the high cost and large footprint of conventional HVDC stations.
Yang Wang, Yuchao Zheng, Qian Wu, Linyuan Wang, Meng Ruan, Yixin Pan, Xiangjun Quan, Fei Zhang   +7 more
wiley   +1 more source

Lignin‐Derived Flame Retardants for Enhanced Fire Safety: A Review

Macromolecular Materials and Engineering, Volume 311, Issue 4, April 2026.
Lignin is a promising halogen‐free and bio‐based flame‐retardant component, where structure, plant origin, and extraction route govern its fire performance. While unmodified lignin promotes char formation, phosphorylation and P‐N/P‐Si functionalization can enhance its fire performance. Lignin‐based intumescent systems and nanostructures can reduce heat
Elif Kaynak, Igor Wachter, Vigneshwaran Shanmugam, Nurul Zuhairah Mahmud Zuhudi, Oisik Das   +4 more
wiley   +1 more source

The Surface Potential Restoration Algorithm of Electrostatic Capacitance Probe During On‐Line Measurement

High Voltage, Volume 11, Issue 2, Page 434-444, April 2026.
ABSTRACT The surface charge accumulation on insulators is one of the important factors that limit the development of high‐voltage direct current (HVDC) gas insulated transmission line (GIL), and the accurate measurement of surface charge is the basis to explore its physical mechanism.
Lei Zhang, Di Yu, Deyue Tang, Zhousheng Zhang   +3 more
wiley   +1 more source

Influence of High Voltage Insulator on Pollution Flashover Voltage

, 2009
Results of pollution flashover voltage measurements and optical observation obtained for high voltage insulators placed in the vertical and the horizontal positions are presented.
Pohl, Z, Wankowicz, J G
core   +1 more source

Impulse Flashover Tests at

, 2006
the last decade. All are believed to be the result of lightning strikes to the antenna. The insulators that failed are fiberglass-belted safety core insulators that had been installed in the late 1990s. An investigation into these failures was undertaken
P. M. Hansen, Edgar Beauchamp, G. Dann, High Voltage   +3 more
core  

Laboratory investigation of insulator contamination problems

, 1975
Includes bibliographical references.This thesis deals with the practical aspect of the laboratory examination of contaminated insulators. A technique which gives a pollution curve for cylindrical insulator models is described.
Travaglini, Mario
core  

Experimental studies on surface discharge dynamics and decay under different voltage waveforms and electrode shapes

, 2009
This paper studies the development and decay of surface discharge under various voltage waveforms and electrode shapes in air at atmospheric pressure.
Lewin, P.L., Tran, T.N., Swingler, S.G., Wilkinson, J.S., Coventry, P.F.   +4 more
core  

An alternative approaches to predict flashover voltage on polluted outdoor insulators using artificial intelligence techniques

, 2020
This paper presents an alternative approach for predicting critical voltage of pollution flashover by using Artificial Intelligence (AI) technique. Data from experimental works combined with the theoretical results from well-known theoretical modelling ...
N. A. M. Jamail, M. T. Ishak, Salem, Ali. A., Hamid, H. A., Ali. A. Salem, H. A. Hamid, N. A. Othman, Rahisman Abd Rahman, Rahman, Rahisham Abd, Jamail, N. A. M., M. S. Kamarudin, Ishak, M. T., Othman, N. A., Kamarudin, M. S.   +13 more
core   +1 more source

Influence of pollution layer thickness on flashover voltage of HV insulators

, 2012
The pollution characteristics (the relationships of flashover voltage and SDD or maximum current Imax ) for insulators contaminated with uniform or nonuniform coatings with different thickness h are presented.
Pohl, Z, Wankowicz, J, Chrzan, K L
core   +1 more source

Modeling of High Voltage Pollution Discharge to Investigate Hot Stick Flashover

, 2013
Electric “flashover” or insulation breakdown has occurred on “hot stick” safety tools used on live AC transmission lines at Manitoba Hydro in 1997 and 2002.
Reske, Dean
core