Again on Selection Power Transformer by A. A. Gonchar

Get full text

Modelling students’ cognitive achievement skills using the alpha power transformed Lindley probability distribution by Shibiru Jabessa Dugasa, Butte Gotu Arero

Get full text

Distinctive Features of Faults for Use in Power Transformer Differential Protection by Glazyrin V.E., Litvinov I.I.

Subjects: Get full text

Control over Permissible Short Emergency Overloads in Power Transformers by V. A. Anischenko, V. A. Adamtsevich

“…The paper proposes a method for determination a permissible duration of short intermittent overloads of power transformers that permits to avoid non-permissible over-heating of winding insulation and fully utilize overloading transformer ability.…”
Get full text

Improving the efficiency of power transformers by intensifying their cooling during operation by M. V. Shamarov, V. I. Aleshin, I. A. Kalmykov, A. M. Shamarov

“…The aim of the study is to develop recommendations for optimizing cooling systems for power transformers in order to increase their efficiency and reduce losses during electric power transformation.Method. …”
Get full text

Determination of Rational Load of Power Transformers under Conditions of Minimum Power Losses by V. N. Radkevich, A. L. Troushnikov

Get full text

A COMPREHENSIVE MODEL FOR THE POWER TRANSFORMER DIGITAL DIFFERENTIAL PROTECTION FUNCTIONING RESEARCH by Yu. V. Rumiantsev

“…This article presents a comprehensive model for the two-winding power transformer digital differential protection functioning research. …”
Get full text

MAGNETIZING CURRENT INRUSH IN THREE PHASE POWER TRANSFORMERS DURING INCOMPLETE PHASE SWITCHING by V. I. Novash, A. P. Tomkevich

Get full text

Selective Green Colorimetric Liquid- and Solid-Based Determination of Furfural in Power Transformer Insulating Fluid by Eunyoung Kim, Taehyun Jun, Ah Reum Kim, Byeong Sub Kwak, Hyunjoo Park

Get full text

Electromagnetic-thermal evaluation of different non-magnetic material configurations for power transformer tank cover by Mohammad Hassan Hashemi, Kerim Kaplan, Selim Dikmen, Farzad Ataei

Subjects: “…Power transformer…”
Get full text

Evaluation of the Technical Condition of the Active Part of the High Power Transformer Based on Measurements and Analysis of Vibroacoustic Signals by Sebastian BORUCKI, Andrzej CICHOŃ, Henryk MAJCHRZAK, Dariusz ZMARZŁY

Subjects: Get full text

Power Transformer Short-Circuit Force Calculation Using Three and Two-Dimensional Finite-Element Analysis by Jian Wang, Junchi He, Xiaohan Chen, Tian Tian, Chenguo Yao, Ahmed Abu-Siada

“…In a power transformer short-circuit, transient current and magnetic flux interactions create strong electromagnetic forces that can deform windings and the core, risking failure. …”
Get full text

A State-of-the-Art Review on the Potential of Waste Cooking Oil as a Sustainable Insulating Liquid for Green Transformers by Samson Okikiola Oparanti, Esther Ogwa Obebe, Issouf Fofana, Reza Jafari

Subjects: Get full text

Analysis of Influence of Moisture Content Ondielectric Properties of Transformer Oil after Aging by JIA Hai-feng, LIU Ji, ZHANG Ming-ze, Lv Jia-lu, CHENG Wei-chao

“…Transformer oil is an important liquid insulating medium in oil-immersed power transformers，which has the functions of arc extinguishing，insulation and cooling. …”
Get full text

A Building Microgrid Architecture Based on MMC-SST and its Control Strategy by WANG Yahui, LI Yong, HAN Jiye, CAO Yijia

“…In traditional building microgrid architecture, conventional power transformer is used for connecting to power grid. …”
Get full text

Analysis and Simulation of Overmodulation Modes of a Three-Inverter Block of the Photovoltaic Installation by Oleschuk V.

“…The most significant results of the work include the fact that in a system with a modified control scheme and modulation of the inverter block in the overmodulation zone, the resulting voltage on the inverter-side windings of the power transformer is characterized by quarter-wave symmetry, and its spectrum contains no even-order harmonics, as well as subharmonics, including regimes of fluctuations in the operating frequency of the system connected to a three-phase network, thereby helping to reduce losses in the transformer windings and improve the efficiency of photovoltaic systems. …”
Get full text

Diagnostic System of Power Oil Transformer in Accordance with Thermal Parameters by D. I. Zalizny, O. G. Shirokov

“…The paper proposes a device and algorithms for early detection of slowly developing faults in a power transformer that cause its abnormal heating. The device differentiates from the others that it requires only temperature measurement of  transformer tank surface and ambient temperatures. …”
Get full text

Transformer-Based Power Conversion System with Synchronous Adjustment of Modulated Inverters by Oleschuk V.

“…Purpose of this work – dissemination of specialized schemes of space-vector modulation for synchronous adjustment of multi-inverter system with power transformer. Multi-winding power transformer systems are between perspective topologies of power conversion systems. …”
Get full text

PRINCIPLES OF IMPLEMENTATION OF BLOCKING OF CURRENT PROTECTION OF ELECTRICAL POWER UNITS WITH TRANSFORMERS by F. A. Romaniuk, A. G. Shapozhnikova

“…Principles of implementation of current protection of elements of electric power systems with power transformers are considered. In some cases, in facilities with power transformers there could be an inrush of a magnetizing current that can cause a false positive current protection. …”
Get full text

Structural Elements Energy Losses of Electrical Equipment due to a Violation of Symmetry of Power Transmission Mode Parameters by N. L. Novikov, R. A. Nechitaev, M. A. Kashin

“…The result of the work can be useful in the design and modification of power transformers and overhead power transmission lines.…”
Get full text