Results 1 to 10 of about 69,762 (292)

MEASUREMENT METHOD FOR DETERMINING THE RESIDUAL FLUX DEPOSITS IN A HEAT EXCHANGER FROM A CONTROLLED ATMOSPHERE BRAZING LINE

Studia Universitatis Babes-Bolyai Chemia, 2015
The brazing technology of aluminum alloys having the highest efficiency, used at manufacturing heat exchangers, is the controlled atmosphere brazing with the NOCOLOK flux.
Grigore COCIAN, Cătălin POPA
doaj   +3 more sources

Analysis of the residual flux influence on inrush current and electromagnetic force in large power transformer

The Journal of Engineering, 2019
The power transformer is the major electrical equipment in the power system and should be able to resist the damage that caused by the abnormal conditions, like the influence of the inrush current and the electromagnetic force. However, the residual flux,
Wenqi Ge, Jianhai Zhao, Youhua Wang
doaj   +2 more sources

Method to Eliminate Flux Linkage DC Component in Load Transformer for Static Transfer Switch

The Scientific World Journal, 2014
Many industrial and commercial sensitive loads are subject to the voltage sags and interruptions. The static transfer switch (STS) based on the thyristors is applied to improve the power quality and reliability.
Yu He, Chengxiong Mao, Jiming Lu, Dan Wang, Bing Tian   +4 more
doaj   +1 more source

Experimental Study on the Amplification Effect of Residual Layers on the Destructiveness of Surge-type Debris Flows [PDF]

长江科学院院报
[Objective] To investigate the drag reduction effect of residual layers in periodic debris flows, we quantitatively revealed the amplification effect of the impact of subsequent waves due to the presence of residual layers.
LIU Yun-hui, SONG Dong-ri, FENG Lei, LIU Jia
doaj   +1 more source

Mitigating the Inrush Current of V/V Transformers Using Railway Conditioners

IEEE Access
Inrush current is high-magnitude current drawn by power transformers upon energization. The severity of inrush current depends on factors such as the transformer’s residual flux and the voltage phase angle at the energization instant.
Amir Aghazadeh, Ehsan Hajipour, Kang Li, Sadegh Azizi   +3 more
doaj   +1 more source

Heat treatment of crushed oil seeds sunflower before pressing [PDF]

E3S Web of Conferences
The work investigates the process of preliminary heat treatment of oilcake of sunflower variety Dushko in the field of infrared irradiation before pressing. Based on the planning of experiments, a pattern of changes in the value of the output parameter -
Gafurov Karim, Safarova Dilshoda, Akabirova Lola, Sharipov Nodirjon, Kuldosheva Firuza, Yamaletdinova Munira   +5 more
doaj   +1 more source

Evaluation of residual stresses in CO2 laser beam welding of SS316L weldments using FEA

Materials Research Express, 2023
Laser welding is used in critical component production when tight tolerances like minimal distortions and residual stresses are required. Laser beam welding offers a lower heat input, a smaller heat affected zone, lower residual stresses, minimum ...
Harinadh Vemanaboina, M Mohan Babu, Inguva Chinmaya Prerana, Edison Gundabattini, Balram Yelamasetti, Kuldeep K Saxena, Karrar Hazim Salem, Muhammad Ijaz Khan, Sayed M Eldin, Manoj Kumar Agrawal   +9 more
doaj   +1 more source

Mixed-layer Heat Budget in W er Heat Budget in Western and Eastern T estern and Eastern Tropical P opical Pacific Ocean during El Niño Event in 2015/2016

Makara Journal of Science, 2020
Temporal variation of mixed-layer heat budget at two contrasting locations, namely, western Pacific (warm water pool) and eastern Pacific (cold tongue) during the extreme El Niño phenomenon in 2015/2016 is evaluated.
Willy Anta Kusuma , Muhammad Nur, Mokhamad Yusup Nur Khakim , Iskhaq Iskandar   +3 more
doaj   +1 more source

Analysis and Suppression of Inrush Current Due to Partial Phase Switching in Three-Phase Transformers

IEEE Access
This study addresses the problem of transient inrush current (IC) during the energization of a power transformer. Moreover, this research examines Partial Phase Switching (PPS), in contrast to traditional three-phase inrush investigations that ...
Abdelghani Yahiou, Hacene Mellah, Souhil Mouassa, Mohammed Charif Kihal, Amar Maafa, Cesar M. A. Vasques, Ehab E. Elattar, Aymen Flah, Sayed Ahmed Nagy, Ahmed Mustafa Hussein   +9 more
doaj   +1 more source

Exploring the Dominant Process of Solar Toroidal Magnetic Flux Loss

The Astrophysical Journal Letters
As the solar magnetic cycle evolves, subsurface toroidal magnetic flux is systematically generated and lost, and this work aims to identify the dominant process behind the flux loss.
Zebin Zhang, Yao Chen
doaj   +1 more source