Results 111 to 120 of about 2,611 (226)

Pengaruh Cara Pemotongan Inti Transformator Terhadap Kurva Magnetisasi Dan Inrush Current [PDF]

, 2015
Telah banyak dilakukan studi mengenai fenomena inrush current. Inrush current merupakan fenomena yang terjadi pada saat transformator pertama kali diberikan sumber tegangan.
Ksatria, Arief Budi
core  

Rectification Free from Inrush Current

IEEJ Transactions on Industry Applications, 2002
A simple stopper of inrush current, with TRIAC, is proposed for rectification systems. Among all the switching devices only TRIAC has reverse trigger-mode that enables direct triggering by the voltage of capacitor, only after its charging up through a resistor.
openaire   +2 more sources

Wavelet Transforms Based Power Transformer Protection from Magnetic Inrush Current [PDF]

, 2015
The Power transformer is the very essential element in the power systems. For wealthy running operation of power transmission and distribution, the transformer set-up is indispensable.
Soundiraraju, P., Loganathan, N.
core   +3 more sources

Analysis of inrush current impacts towards transformer protection capability / Norhuda Hamzah [PDF]

, 2017
Inrush current in power transformer is also known as magnetizing inrush current, which the transformer windings are linked magnetically by flux in the transformer core.
Norhuda, Hamzah
core  

Demagnetization Method for Reducing Inrush Current of Single Phase 1 kVA Transformer

JAREE (Journal on Advanced Research in Electrical Engineering), 2017
This study deals with an effort to reduce inrush current of single phase transformer during its energizing. Inrush current affected by residual flux was minimized using demagnetization method in order to reduce residual flux trapped in the core of ...
I Made Yulistya Negara, Dicky Wahyu Darmawan, Ryan Nurdianto, Dedet Candra Riawan, Arif Musthofa, Dimas Anton Asfani, Mochammad Wahyudi, Daniar Fahmi   +7 more
doaj  

Unified Algorithm Based on Rotating Phasors for Accurate Detection of Inrush Currents in Three-Phase Transformers

IEEE Access
The detection of inrush currents is vital for transformer differential protection. The mainstream method for detecting inrush current is based on the second harmonic content of the differential current.
Jimin Chai, Shuyan Pan
doaj   +1 more source

Desempenho da proteção diferencial em transformadores de potência perante condições especiais de operação [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia ElétricaRelés digitais vêm gradualmente substituindo os relés eletromecânicos porque são mais sensíveis, mais flexíveis e várias ...
Verney, Luiz Henrique Costa de
core  

Magnetic saturation and inrush current in transformers [PDF]

, 2001
The project aims to find a new method, used to discriminate between inrush current and short circuit current based on the waveform discrimination using neural network which is different from the conventional method using the ratio of second harmonic ...
Wang, Qin.
core  

Research on optimization strategy of differential protection for inrush current in converter transformer considering magnetic flux restraint

AIP Advances
The converter transformer is a critical component of the HVDC transmission system and its operational stability is essential for the overall safety of the power grid.
Ran Deng, Haotian Kong, Liangchuang Li, Changan Lu, Ao Xu, Chenguang Wang   +5 more
doaj   +1 more source

A Study on Excitation Inrush Current and Overvoltage Mitigation Strategies Utilizing Phase Selection Control

Energies
To address the challenges of system failures and equipment damage caused by excitation inrush currents and overvoltages during no-load energization of high-speed locomotive transformers, a simulation model was developed utilizing PSCAD electromagnetic ...
Junting Yan, Qingfeng Wang, Jianqiong Zhang, Xiangqiang Li   +3 more
doaj   +1 more source