Results 21 to 30 of about 93,869 (287)

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

Frequencies Dominations for Different Rating of Distribution Transformer under Transients [PDF]

open access: yes, 2020
Power transients faults on high voltage lines are prominently due to high frequency transients. These transients affect the predicted life and efficiency of equipment.
Faisal, Haseeb   +3 more
core  

A Solid State Transformer model for power flow calculations [PDF]

open access: yes, 2017
This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional iron-and-copper transformer with the SST
Guerra Sánchez, Luis Gerardo   +1 more
core   +2 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

Detection of Interturn Short-Circuit Faults in Dry-Type Voltage Transformers Using the Pulse Voltage Method

open access: yesEnergies, 2023
This article investigates the application of the pulse voltage method for detecting interturn short-circuit faults in the high-voltage windings of dry-type voltage transformers.
Hongyan Nie   +3 more
doaj   +1 more source

Multi-objective GPR-based design optimization of high frequency transformers

open access: yesPower Electronic Devices and Components
FEA-based design optimization of high frequency transformers (HTSs) are by far more accurate but they come at huge computational cost. This paper presents a Gaussian Process Regression-based multiobjective design optimization technique for HFTs.
Temitayo O. Olowu   +3 more
doaj   +1 more source

Investigation on the Parasitic Capacitance of High Frequency and High Voltage Transformers of Multi-Section Windings

open access: yesIEEE Access, 2020
Resonant converters are widely used in high voltage applications thanks to the soft switching technologies. The high frequency and high voltage (HFHV) transformer is the most complicated and important part to boost the voltage by tens or hundreds of ...
Le Deng   +4 more
doaj   +1 more source

Analysis and research on the fault-tolerant performance of the high-frequency isolated energy conversion link for an integrated distribution transformer system

open access: yesThe Journal of Engineering, 2019
In order to enhance the stability of the integrated distribution transformer system (IDTS), a fault-tolerant topology of the high-frequency (HF) isolated energy conversion link which features a multi-winding HF transformer and two multi-arm converters ...
Qingshan Wang   +4 more
doaj   +1 more source

Optimal passive filter design for effective utilization of cables and transformers under non-sinusoidal conditions [PDF]

open access: yes, 2014
Transformers and cables have overheating and reduced loading capabilities under non-sinusoidal conditions due to the fact that their losses increases with not only rms value but also frequency of the load current.
Aleem, SHEA   +3 more
core   +1 more source

The simulation of a new high frequency transformer

open access: yesJournal of Energy Systems, 2022
Core losses of transformers motivate many engineers and scientists to design and implement different transformers for their specific aims. Since there exists a growing interest on high frequency applications in today’s world, design and optimization studies of a magnetic fluid core transformer (MFCT), having an easy and cheap production approach in ...
Sude HATEM, Erol KURT
openaire   +4 more sources

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