Results 241 to 250 of about 21,219 (327)

About the Ageing‐Induced Modifications of Physical‐Chemical and Electrical Properties of Polyimide (PMDA‐ODA) Under Gamma Radiation and High Temperatures

High Voltage, EarlyView.
ABSTRACT This study investigates the effects of radiation‐induced ageing on the physical, chemical, mechanical and electrical properties of Poly[4,4′‐oxydiphenylene‐ pyromellitimide] (PMDA‐ODA) polyimide, a high‐performance insulation material widely used in aerospace applications.
Simone Vincenzo Suraci, Jizhu Jin, Davide Mazza, Davide Fabiani   +3 more
wiley   +1 more source

High impedance faults detection in power distribution networks using rogowski coils, kalman filtering, least-squares and non-recursive DFT computation engines. [PDF]

PLoS One
Ali ZM, Mostafa MH, Abdel Aleem SHE, Esmail EM.   +3 more
europepmc   +1 more source

Influence of Arc Faults on Pressure Production Characteristics in AC Turret of UHV Transformers

High Voltage, EarlyView.
ABSTRACT The overpressure caused by arc fault in the oil tank can lead to a transformer explosion. Since the AC turret of transformers serves to connect the transformer windings with the AC busbar, the arc current can be extremely high if an earth fault arc occurs leading to potentially hazardous pressure.
Yuhang Li, Yuanxiang Zhou, Guimin Jiang, Licheng Lu, Hongchuan Dong   +4 more
wiley   +1 more source

Walrus optimizer-based optimal fractional order PID control for performance enhancement of offshore wind farms. [PDF]

Sci Rep
Shaheen MAM, Hasanien HM, Mekhamer SF, Talaat HEA.   +3 more
europepmc   +1 more source

Time to Breakdown for Type I Motor Winding Insulation Under High‐Frequency High‐Slew‐Rate Square Wave Voltages

High Voltage, EarlyView.
ABSTRACT The emergence of (ultra)wide bandgap ((U)WBG)‐based devices has significantly enhanced performance in high‐frequency switching applications, enabling breakthroughs in electric transportation, aerospace, and renewable energy systems. However, it also presents considerable challenges to insulation systems, such as electric motor winding ...
Easir Arafat, Md Asifur Rahman, Farzana Islam, Mona Ghassemi   +3 more
wiley   +1 more source

Enhanced power sharing and voltage regulation for islanded nano-satellite DC microgrids in spinning flight scenarios. [PDF]

Sci Rep
Louassaa K, Guerrero JM, Khan B, Yousaf MZ, Zdiri MA, Zhang L, Sivanraju R.   +6 more
europepmc   +1 more source

Microgrid anti islanding protection scheme based on deep neural network algorithm and unscented Kalman filtering. [PDF]

Sci Rep
Chauhdary ST, Khan TS, Arif S, Ahmad A, Shah MA, Baili J.   +5 more
europepmc   +1 more source

Enhancing stability in renewable energy transmission using multi-terminal HVDC systems with grid-forming controls for offshore and onshore wind integration. [PDF]

Sci Rep
Shufian A, Hossain MI, Anonto HZ, Rohan AI.   +3 more
europepmc   +1 more source

Research into the Failure Mechanism and Reliability of an Active Frequency-Selective Surface in Complex Environments. [PDF]

Materials (Basel)
Wei Z, Suo B, Zhou C, Li Y, Zhang F.
europepmc   +1 more source

Research on the Short-Circuit Characteristics of Trench-Type SiC Power MOSFETs Under Single and Repetitive Pulse Strikes. [PDF]

Micromachines (Basel)
Liu L, Pang B, Li S, Zhen Y, Li G.
europepmc   +1 more source