Results 41 to 50 of about 9,639,269 (244)

Properties of concrete containing recycled PET bottles as sand replacement [PDF]

, 2020
The modern lifestyle along with the new technologies have contributed the increasing of waste materials production. Plastic is one of the waste materials which is non-disposal and non-biodegradable material that can remain on earth without degradation ...
Abdul Awal, A.S.M, Misri, Zainora, Wan Ibrahim, Mohd Haziman   +2 more
core  

Inrush Current Based on Fast Fourier Transform [PDF]

INTEK: Jurnal Penelitian, 2021
Advances in technology have caused the use of electricity to increase rapidly. With advances in technology, this is followed by the use of increasingly efficient electrical components or equipment. This more efficient electrical equipment causes the impedance of the component to be smaller, causing a surge in current when it is turned on.
Mochamad Ilham Zamzami, Eka Prasetyono, Dimas Okky Anggriawan, Mike Yuliana   +3 more
openaire   +1 more source

Analysis of the dynamic performance of self-excited induction generators employed in renewable energy generation [PDF]

, 2014
Incentives, such as the Feed-in-tariff are expected to lead to continuous increase in the deployment of Small Scale Embedded Generation (SSEG) in the distribution network.
Arrillaga, Bim, Bonert, Ekanayake, Ghanim Putrus, Grantham, Mohamed Farrag, Murthy, Samarakoon, Shrindhar, Srivastava, Starbac, Stein, Tiwari, Wekhande   +14 more
core   +5 more sources

Discriminating transformer large inrush currents from fault currents

International Journal of Electrical Power & Energy Systems, 2016
Abstract One of the most widely used approaches for transformer protection is the low impedance differential relay, which can be adversely affected by inrush currents. Although the conventional inrush current detectors, i.e. the gap detection and second harmonic criteria, can block the differential relay in most of such cases, they are severely prone
Hamed Dashti, Mahdi Davarpanah, Majid Sanaye-Pasand, Hamid Lesani   +3 more
openaire   +1 more source

Commutation failure suppression strategy of hybrid DC transmission based on active current limiting

电力工程技术, 2022
Aiming at the problem of large inrush current when the commutation fails in the hybrid direct current (DC) transmission system,the relationship between the inrush current amplitude and the voltage source converter (VSC) is firstly derived.
MA Wenzhong, LI Zhaoyuan, ZHANG Kuitong, HAN Jia, LI Mushu, YAO Minrui   +5 more
doaj   +1 more source

Electronic suppression of transformer inrush currents

International Journal of Electrical Power & Energy Systems, 1988
Abstract A novel electronic technique for suppressing transformer inrush currents is outlined. The suppression concept is based on the generation of a time-expanding triggering signal controlling an electronic switch which is connected to the primary winding of the transformer.
El-Hosseiny T. El Shirbeeny, A.Y. Yakka
openaire   +1 more source

Application of saturated core transformer as inrush current limiter

e-Prime: Advances in Electrical Engineering, Electronics and Energy
An inrush current is a transient current that results from a sudden change in the exciting voltage across a transformer's windings. Reducing the inrush current of transformers is desirable due to mechanical stresses and negligent operation of protective ...
Mehrdad Tarafdar-Hagh, Noorallah Hasanlouei, Kashem Muttaqi, Kamran Taghizad-Tavana, Sayyad Nojavan, Meysam Abdi   +5 more
doaj   +1 more source

Event Analysis of Pulse-reclosers in Distribution Systems Through Sparse Representation

, 2017
The pulse-recloser uses pulse testing technology to verify that the line is clear of faults before initiating a reclose operation, which significantly reduces stress on the system components (e.g.
Hay, R., Raoufat, M. E., Taalimi, A., Tomsovic, K.   +3 more
core   +1 more source

Hybrid Wiener-Hammerstein Structure for Grey-Box Modeling of DC-DC Converters [PDF]

, 2009
In this work a generic hybrid model for dc-dc converters is proposed. The protections and remote control functions are managed by the logic system (event driven behaviour) and the power stage and control is modelled by a Wiener-Hammerstein structure. The
Alou Cervera, Pedro, Cobos Márquez, José Antonio, García Suárez, Oscar, Oliver Ramírez, Jesús Angel, Prieto López, Roberto   +4 more
core   +1 more source

Analysis and suppression of operational overvoltage and inrush current for high‐speed trains by automatic phase‐switching technique

High Voltage
When a high‐speed train approaches the insulated phase‐splitting section embedded between neighbouring power supply arms, the vacuum circuit breaker (VCB) installed on trains must be disconnected to maintain the traction power supply system as a no‐load ...
Ye Cao, S. Xiao, Zhizong Ye, Guangning Wu, Yujun Guo, Guoqiang Gao, Chuanming Sun, Jiancheng Liu, Zheng Chen, Hao Hou, Zijing Wang, Puyang Liu, Yuhui Zhang, Jie Yu   +13 more
semanticscholar   +1 more source