Results 11 to 20 of about 125,561 (280)

A new criterion for inter-turn short-circuit fault recognition for new energy grid-connected transformer

open access: yes电力工程技术, 2022
In order to increase the transmission capacity of the new energy grid-connected transformer,a two-voltage three-winding transformer with star-angle-angle connection form is adopted.
XING Wu   +3 more
doaj   +1 more source

Differential Protection of Transmission Transformer for Large-Scale Doubly-Fed Wind Farms Based on Detrended Analysis

open access: yesZhongguo dianli, 2023
Since the fault current output from the doubly-fed wind farm has frequency deviation characteristics and contains large harmonic components, when an internal fault occurs in the transmission transformer for the doubly-fed wind farm, the ratio of the ...
Yanchun XU   +3 more
doaj   +1 more source

On fully superconducting rectifiers and fluxpumps. A review. Part 2: Commutation modes, characteristics and switches [PDF]

open access: yes, 1981
This paper forms the second part of the review. Full and half wave superconducting transformer rectifiers are analysed. Modes of operation and loss mechanisms are detailed and a comparison between the behaviour of dynamos and rectifiers is presented ...
Kate, H.H.J. ten   +1 more
core   +2 more sources

Less-conventional low-consumption galvanic separated MOSFET-IGBT gate drive supply [PDF]

open access: yes, 2017
A simple half-bridge, galvanic separated power supply which can be short circuit proof is proposed for gate driver local supplies. The supply is made while hacking a common mode type filter as a transformer, as the transformer shows a good insulation, it
Bikorimana, Jean Marie Vianney   +1 more
core   +3 more sources

A Simplified Top-Oil Temperature Model for Transformers Based on the Pathway of Energy Transfer Concept and the Thermal-Electrical Analogy

open access: yesEnergies, 2017
This paper presents an alternative approach to determine the simplified top-oil temperature (TOT) based on the pathway of energy transfer and thermal-electrical analogy concepts.
Muhammad Hakirin Roslan   +5 more
doaj   +1 more source

Integrating IoT Technology for Improved Distribution Transformer Monitoring and Protection

open access: yesElectrical, Control and Communication Engineering, 2023
This research study focuses on developing and implementing an IoT-based distribution transformer monitoring and protection system. The traditional methods of transformer protection and monitoring have proven to be inefficient and time-consuming, leading ...
Rehman Sadiq Ur, Khan Adeel
doaj   +1 more source

Substation protection method for missing measurement information of transformer and bus connecting line [PDF]

open access: yesE3S Web of Conferences, 2021
In order to solve the problems of protection misoperation and refusing to operate caused by the lack of measurement information in smart substation, a substation protection method which can effectively eliminate the influence of transformer inrush ...
Liu Wei   +8 more
doaj   +1 more source

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

Saturation Detection-Based Blocking Scheme for Transformer Differential Protection

open access: yesEnergies, 2014
This paper describes a current differential relay for transformer protection that operates in conjunction with a core saturation detection-based blocking algorithm.
Byung Eun Lee   +5 more
doaj   +1 more source

Issues in integrating existing multi-agent systems for power engineering applications [PDF]

open access: yes, 2005
Multi-agent systems (MAS) have proven to be an effective platform for diagnostic and condition monitoring applications in the power industry. For example, a multi-agent system architecture, entitled condition monitoring multi-agent system (COMMAS ...
Catterson, V.M.   +2 more
core   +1 more source

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