Results 11 to 20 of about 21,646 (293)

Improving the quality of 0.4 kV electricity in household appliances due to voltage regulation [PDF]

open access: yesE3S Web of Conferences, 2023
The article discusses a way to improve the quality of electricity up to 0.4 kV household appliances through voltage regulation. As an actuator, a booster transformer with two secondary windings connected in accordance with the primary winding is used ...
Karimov Raxmatillo
doaj   +1 more source

Research on the Distribution Characteristics of Transformer Axial Vibration under Short-Circuit Conditions Considering Damping Parameters

open access: yesApplied Sciences, 2022
The existing research on the distribution characteristics of displacement and acceleration of the transformer axial vibration under short-circuit conditions is based on ignoring the damping parameters.
Shuguo Gao   +3 more
doaj   +1 more source

Two Winding Transformer Equivalent Model of Three Winding Transformers for MATPOWER

open access: yesDEStech Transactions on Engineering and Technology Research, 2020
MATPOWER is one of wide used authoriterative open source software of power flow calculation in the world. However, it only provides a model of the two-winding transformer thus limiting its application in power system with a three-winding transformer which is very popular in the power system.
MD MUNNA TALUKDER   +3 more
openaire   +2 more sources

Power transformer geometry monitoring of active parts by SFRA method [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2014
During regular operation, power transformer windings are continuously exposed to electromechanical stresses and vibrations. Surges during lightning or short circuits may cause the weakening of the mechanical structure and the mechanical reinforcing parts
Ilić Denis   +2 more
doaj   +1 more source

Design and operation of a protection system for transformers with superconducting windings [PDF]

open access: yes, 1985
Power transformers with superconducting windings need a protection system to prevent damage to the low-loss superconducting winding by an abnormally high current.
Klundert, L.J.M. van de   +2 more
core   +3 more sources

Turn-to-turn fault protection technique for synchronous machines without additional voltage transformers [PDF]

open access: yes, 2017
This paper presents a novel protection technique for the detection of inter-turn faults in synchronous machines. It is based on the calculation of voltage in the stator windings from the usual phases and neutral voltage, typically available in ...
Gyftakis, Konstantinos N.   +2 more
core   +1 more source

Practical Study of Mixed-Core High Frequency Power Transformer

open access: yesMagnetism, 2022
The design of medium- to high-frequency power electronics transformer aims not only to minimize the power loss in the windings and the core, but its heat removal features should also allow optimal use of both core and copper.
Arun Kumar Paul
doaj   +1 more source

Contactless laser control and measuring complex for determining the level of winding pressure and magnetic conductor of power transformer

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2021
TARGET. The purpose of this work is to develop a non-contact laser control and measuring complex (LCMC) for vibration control of the level of pressing of windings and magnetic circuit of a power transformer.
V. R. Basenko   +3 more
doaj   +1 more source

Characterization of Power Transformer Electromagnetic Forces Affected by Winding Faults [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2018
Electromagnetic forces in power transformer windings are produced by interaction between the leakage fluxes and current passing them. Since the leakage flux distribution along the windings height is in two axial and radial directions, so the ...
V. Behjat, A. Shams, V. Tamjidi
doaj   +1 more source

THE EFFECT OF THE ACTIVE RESISTANCE OF THE PULSE TRANSFORMER WINDINGS ON THE PARAMETERS OF VOLTAGE PULSES GENERATED ON A CAPACITIVE LOAD

open access: yesElectrical engineering & Electromechanics, 2019
Goal. Analysis of the influence of the active resistance of the primary and secondary windings of a pulse transformer on the voltage at the load capacitance based on the developed methodology for the analysis of transients caused by the discharge of the ...
A. G. Gurin, I. A. Kostiukov
doaj   +1 more source

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