Results 231 to 240 of about 6,833,731 (285)

Improving IoT security through an explainable hybrid CNN-transformer model and federated learning. [PDF]

open access: yesSci Rep
Al-Hejri AM   +5 more
europepmc   +1 more source

An Empirical Fourier Transform-Based Power Transformer Differential Protection

IEEE Transactions on Power Delivery, 2017
This paper presents a novel approach for the power transformer differential protection based on empirical Fourier transform (EFT). The EFT is a novel transform technique, which is derived from discrete Fourier transform (DFT) with certain modifications based on the nature of current waveforms during internal fault, inrush and current transformer (CT ...
Senthil Kumar Murugan, Sishaj P Simon
exaly   +2 more sources

A Clarke-Wavelet-Based Time-Domain Power Transformer Differential Protection

open access: yesIEEE Transactions on Power Delivery, 2022
Phasor-based differential protection is widely used as the main protection function of the power transformer due to its reliability and ability to discriminate internal from external faults and inrush currents.
Marjan Popov   +2 more
exaly   +3 more sources

Introduction to Power Transformer Protection

2020
India is a leading country and its economy grows day by day by attracting foreign direct investments (FDI). Production, manufacturing, industrial, software, and all other business depends on reliable electricity supply with a slogan of “without power-no business”, shows the importance of reliable power supply.
Dharmesh Patel, Nilesh Chothani
openaire   +1 more source

Power Transformer Protection using ANN and Wavelet Transforms

2021 7th International Conference on Advanced Computing and Communication Systems (ICACCS), 2021
Three-phase Power transformers protection algorithm is proposed in this paper by using wavelet transform and ANN method. The current waves obtained are decomposed by using wavelet transforms. ANN technique is used as pattern classifier. Extensive case studies show that wavelet transformation provides preliminary feature extraction effectively for ...
R.Naveena Bhargavi   +2 more
openaire   +1 more source

The surge protection of power transformers

Journal of the Institution of Electrical Engineers, 1939
The paper commences by reviewing the methods adopted for the protection of overhead lines and transformers from the incidence of lightning. Itis then pointed out that in manycases it is not economic, and in others technically difficult, to provide sufficient line protection, so that transformers connected to such lines are likely to be subjected to ...
J.L. Miller, J.M. Thomson
openaire   +1 more source

Neutralizing transformer to protect power station communication

Electrical Engineering, 1936
In considering the subject of protecting communication circuits at electric power plants and substations by means of neutralizing transformers, this paper gives particular attention to the problems incident to the localized rise in ground potential caused by power system faults. Several specific installations are discussed and illustrated.
E. E. George   +3 more
openaire   +1 more source

Protection of Power Transformers By Using Continuous Wavelet Transform

MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference, 2006
This paper presents the development of wavelet based transformer protection algorithm. Continuous wavelet transform (CWT) is used for analyzing discontinuities in the primary current signal during internal faults. A custom-built transformer with different tap windings is used for the laboratory studies.
openaire   +1 more source

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