Results 11 to 20 of about 9,954 (268)
Frequency Domain Diagnostics of Transformer Insulation
Приборы и методы измерений, 2019 The first part of paper deals with the base information about diagnostics of power transformers. In this part are presented differently insulating methods, for example method of recovery voltage method, method of polarization and depolarization currents ...
M. Gutten +6 more
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Medium voltage digital instrument transformer [PDF]
E3S Web of ConferencesInstrument transformers with digital output provides significant advantages, including those related to increased reliability of power system operation.
Ulyanov Dmitriy, Plakidin Roman
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STUDY AND DESIGN OF SINGLE PHASE CONVERTER USING OF SINGLE PHASE TRANSFORMER
International Journal of Research -GRANTHAALAYAH, 2016 The field of electrical transformer are most important equipment which is use to convert ac voltage or current like lower to higher , higher to lower without change in the frequency . its primary side and secondary side are isolate from each other and it can higher or lower voltage level the apparent value of electrical passive element like inductive ,
Prof. G.R.Kumrey, Dr. S. K. Mahobia
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Energies, 2019 Power electronic development determines the introduction of nonlinear devices in electric power systems. Introduction of nonlinear devices increase current harmonics in transmission and distribution power systems.
Jorge Enrique Carrión González +5 more
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Estimation of the Equivalent Circuit Parameters in Transformers Using Evolutionary Algorithms
Mathematical and Computational Applications, 2023 The conventional methods of parameter estimation in transformers, such as the open-circuit and short-circuit tests, are not always available, especially when the transformer is already in operation and its disconnection is impossible.
Hector Ascencion-Mestiza +5 more
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Applied Sciences, 2021 With the popularization of electric private cars and the increase of charging facilities in residential areas, disorderly charging will affect the power supply efficiency of their distribution transformers and the quality of electricity used by users in ...
Hui Gao, Lutong Yang, Haowei Duan
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Smart Transformer-Based Single Phase-To-Neutral Fault Management [PDF]
IEEE Transactions on Power Delivery, 2019 The smart transformer (ST), with its high control capability, offers new features for optimizing the management of the distribution grid. The ST, by controlling the voltage in each phase independently, is able to manage the operations during grid faults, in particular in the single-phase ones.
Giovanni De Carne +3 more
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Interphase Power Flow Control via Single-Phase Elements in Distribution Systems
Clean Technologies, 2021 The capability of routing power from one phase to another, interphase power flow (IPPF) control, has the potential to improve power systems efficiency, stability, and operation.
Piyapath Siratarnsophon +3 more
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Evaluation of DC-AC Single-Phase Solid-State Transformers [PDF]
IEEE Latin America Transactions, 2019 This work presents an evaluation of three topologies of DC-AC single-phase solid state transformers, for applications in electric microgrids. The main features of these topologies are galvanic isolation, capability to control the power flow bidirectionally, soft switching and unit power factor under open loop control. The principle of operation of each
Bosso, Jonathan Emmanuel +3 more
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Ground Fault Protection Using Open Break Delta Grounding Transformer in Ungrounded System
Logic, 2019 One of the most common and difficult problems to solve in distribution power systems is the location and elimination of the ground fault. For the study of an electrical distribution network in ungrounded system operating at 20 kV on the primary and 380 V
Supriyanto Suhono +2 more
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