Results 91 to 100 of about 12,322 (303)

Distribution fault location using short-circuit fault current profile approach [PDF]

, 2012
textPopularly used impedance-based methods need voltage and current waveform as well as line impedance per unit length to estimate distance to fault location.
Das, Swagata
core  

Magnetic flux analysis in superconducting Fault Current Limiters under short-circuit conditions

, 2012
In order to obtain a more compact Superconducting Fault Current limiter (SFCL), a special geometry of core and AC coil is required. This results in a unique magnetic flux pattern which differs from those associated with conventional round core ...
Darmann, Frank, Aracil, Jaime Cabanes, Tang, Tee, Coetzee, Jacob Carl, Lopez-Roldan, Joseph, J. Lopez-Roldan, J. C. Coetzee, F. Darmann, Jaime Cabanes Aracil, Tee Tang   +9 more
core   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Offline Diagnosis Method for Rotor Winding Internal Short Circuit Fault of Adjustable Speed Hydro-Generating Unit

Applied Sciences
The adjustable speed hydro-generating unit has a complex three-phase alternating current excitation structure. The existing rotor winding short circuit (RWSC) fault diagnosis methods are generally difficult to use to locate the fault location and ...
Jian Qiao, Kai Wang, Yikai Wang, Qinghui Lu, Xin Yin, Wenchao Jia, Xianggen Yin   +6 more
doaj   +1 more source

Short circuit studies in transmission networks using improved fault model

, 2007
Accuracy of short circuit analysis depends on the fault modelling. This paper addresses the implementation of a new fault model consisted of a serial connection of the tower footing resistance and arc resistance.
Dobrijevic, Djordje M., Vladimir V. Terzija, Djordje M. Dobrijevic, Terzija, Vladimir V.   +3 more
core   +1 more source

Short-Circuit Fault Current Parameter Prediction Method Based on Ultra-Short-Time Data Window

, 2022
The prediction of short-circuit current parameters is essential for the adoption of short-circuit fault limiting techniques and the reliable cut-off of circuit breakers.
Mengjiao Wang, Zhihang Zhao, Xinlao Wei
core   +1 more source

Tuning Separator Chemistry: Improving Zn Anode Compatibility via Functionalized Chitin Nanofibers

Advanced Functional Materials, EarlyView.
Nanochitin derived from waste shrimp shells is used to fabricate separators for aqueous zinc batteries. By tuning the density of amine and carboxylic surface groups, water mobility at the separator interface is controlled, promoting uniform zinc deposition, suppressing dendrite growth, and enabling exceptional cycling stability exceeding 2000 h ...
Ibrahim Al Kathemi, Vishnu Arumughan, Mohamed Zbiri, Marcel Kröger, Ira Smal, Eero Kontturi, Roza Bouchal   +6 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Inter-Turn Short Circuit Detection Based on Modulation Signal Bispectrum Analysis of Motor Current Signals

, 2013
Motor current signature analysis (MCSA) is a common practice in industry for finding motor faults. However, because of small modulations caused by faults and high noise contamination, it is difficult to quantify the modulation in measured signals which ...
Gu, Fengshou, Ball, Andrew, Ball, A. D., Gu, F., Alwodai, Ahmed, Yuan, X., Ahmed, M., Alwodai, A., Shao, Y.   +8 more
core  

Fault-Tolerant Control for Single-phase Open-circuit and Short-circuit Fault in Five-phase PMSM with Third-order Harmonic Back EMF Using Coefficients Reconfiguration

For a five-phase permanent magnet synchronous machine (PMSM), the third-order harmonic back EMF is increased by changing the shape of the permanent magnet for increasing average torque in healthy operation.
Wang, Shuo, Zhang, Xiaochen, Buticchi, Giampaolo, Zhang, He, Wang, Huanran, Gu, Chunyang, Zhao, Weiduo, Gerada, Chris   +7 more
core   +1 more source