Impact of different harmonic loads on distribution transformers

Pejovski, Dejan; Najdenkoski, Krste; Digalovski, Mihail

doi:10.1016/j.proeng.2017.09.696

Cited by 21 publications

(6 citation statements)

References 1 publication

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“…Some estimates state that these factors can lead to 3.1 -7.2 times higher losses than DOE standards [30]. Other research suggests that introducing nonlinear loads can increase losses by 6 times [31].…”

Section: Natural Gas Reciprocating Enginementioning

confidence: 99%

Analysis of Emissions Profiles of Hydraulic Fracturing Engine Technologies

Nieuwenburg¹,

Nix²,

Fu³

et al. 2023

EPE

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Section: Natural Gas Reciprocating Enginementioning

confidence: 99%

Analysis of Emissions Profiles of Hydraulic Fracturing Engine Technologies

Nieuwenburg¹,

Nix²,

Fu³

et al. 2023

EPE

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“…Özellikle akım formunun harmonik bileşenleri içermesi durumunda bu analizlerin yapılması gerekmektedir. Analizler sonucunda sargı üzerinde oluşan hot-spot noktalar görülebilmekte [42,43] yüksek kayıp durumunda revizyonlar gerçekleştirilebilmektedir. Bunun yanında yüksek güçlü sargılarda paralel iletkenler kullanılması durumunda iletkenler arasında oluşan akım dağılımları bu analizler ile hesaplanabilmektedir.…”

Section: Harmonikli Durumlarda Oluşan Kayıplarunclassified

Cer Transformatörlerinde Elektriksel Parametrelerin Sonlu Elemanlar Yöntemi ile Analizi

Çürükova¹,

Demirol²,

Sönmez³

et al. 2022

Demiryolu Mühendisliği

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Traction transformers feed the motor drivers used in electric locomotives in railway systems. Traction transformers are placed in a limited area above or below the locomotives. Due to the power needs of the equipment used in train systems, there are many winding structures at different voltage levels in traction transformers. Therefore, the design parameters of traction transformers should be specifically evaluated for providing a high level of sustainability, efficiency, and operational safety in railway systems. It is crucial to carry out detailed analyses during the design phase and evaluate them according to standards. Accurate calculation of critical electrical parameters such as short circuit impedance, inrush currents, tank losses and core losses in traction transformers is not always possible or very laborious with theoretical methods. In this case, the finite element analysis method has many advantages. With finite element analysis, calculations can be made with high accuracy and in a short time. This study calculated the electrical parameters of a sample traction transformer with Ansys Electronics Suite finite element analysis software. Summary information about the calculated parameters is given, and the analysis steps are explained. In this context, the necessity of the finite element method for the electrical analysis of traction transformers, which is one of the most critical components in railway systems, has been expressed.

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“…Where e −j2πnm/N can be changed to (2) Euler for easy calculation. Equation ( 2) is substituted into (1), giving (3).…”

Section: Dft No Lcdmentioning

confidence: 99%

“…The use of nonlinear load produces harmonic in electric power systems. The harmonic caused some troubles, as in research [2][3][4]. Research that decreasing harmonic also has been done in research [5][6][7].…”

Section: Introductionmentioning

confidence: 99%