Results 211 to 220 of about 799 (256)

An integrated fuzzy logic approach for valuation of power transformer's degree of healthiness or faultiness. [PDF]

Heliyon
Makacha JM, Mharakurwa ET, Mogaka LO.
europepmc   +1 more source

Fault diagnosis method for oil-immersed transformers integrated digital twin model. [PDF]

Sci Rep
Yao H, Zhang X, Guo Q, Miao Y, Guan S.
europepmc   +1 more source

Digitalization technology based research on intelligent temperature sensing device for transformers. [PDF]

Sci Rep
Juan Y, Yuan Z, Chen Z, Chen J, Bian L, Zhang J, Liu Y.   +6 more
europepmc   +1 more source

Transformer Fault Diagnosis Based on Knowledge Distillation and Residual Convolutional Neural Networks. [PDF]

Entropy (Basel)
Shang H, Wei Y, Zhang S.
europepmc   +1 more source

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A Hybrid machine‐learning method for oil‐immersed power transformer fault diagnosis

IEEJ Transactions on Electrical and Electronic Engineering, 2020
This paper presents a hybrid machine‐learning method based on oil‐immersed power transformer fault diagnosis Probability Neural Network (PNN) optimized via a Multi‐Verse Optimizer (MVO) algorithm. PNN is a radial basis function prefeedback neural network based on Bayesian decision theory.
Yang Xiaohui, Chunsheng Yang
exaly   +2 more sources

The Study and Analysis of Oil-immersed Power Transformer by Using Artificial Neural Network for Designing Program Apply in the Industry of Testing Oil-immersed Transformers

2020 8th International Conference on Condition Monitoring and Diagnosis (CMD), 2020
This research presents the study and analysis of faults in the oil-immersed transformer. Abnormalities can be analyzed from the Dissolved Gas Analysis (DGA) test. The oil has a variety of compounds such as hydrocarbons, oxygen, nitrogen and hydrogen. The amount of gas in oil has distinctive characteristics that can indicate abnormalities in different ...
Nutthaphan Boonsaner, Phop Chancharoensook, Chisanucha Bunnag, Achirawit Suwantaweesuk, Kiattisak Vongphanich   +4 more
exaly   +2 more sources

The On-load Voltage Regulator for an Oil-immersed Power Transformer

2022 4th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE), 2022
Pavel Rashitov
exaly   +2 more sources

Oil-Immersed Power Transformer Overload Calculations by Computer

IEEE Transactions on Power Apparatus and Systems, 1969
Application of overload ratings to power transformers is considered in the light of 30 years of operating experience. A comprehensive description is given of the philosophy of overloading, methods of calculation, transformer life curves, and a working computer program which incorporates these factors with increased accuracy and reduced engineering time.
John Blake, Edward Kelly
openaire   +1 more source

Study on Life Prediction Method of Oil Immersed Power Transformer

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2008
Moisture and degradation of oil-immersed power transformer dielectric material are the key factors for its failures. Therefore, in this paper moisture content, aging degree and their influence on transformer dielectric material are discussed. Chemical analyses can provide direct information on parameters, however, most chemical analyses must be ...
Zhang Tao, Cai Jin-ding
openaire   +1 more source

Thermal Hydrodynamic Model of Oil-Immersed Power Transformers

Fluids Engineering, 2001
Abstract A lower hierarchy model of an oil-immersed – transformer was used to calculate the heat transfer in transformer windings. Contrary to the approach of other investigators, who considered a global network, this approach has the merit of focusing on the main body of the transformer.
openaire   +1 more source