Results 21 to 30 of about 792,011 (298)

Analytical Optimal Currents for Multiphase PMSMs Under Fault Conditions and Saturation [PDF]

open access: yes, 2014
An original analytical expression is presented in this paper to obtain optimal currents minimizing the copper losses of a multi-phase Permanent Magnet Synchronous Motor (PMSM) under fault conditions.
FLIELLER, Damien   +3 more
core   +5 more sources

Fault direction identification for wind power integration system

open access: yesThe Journal of Engineering, 2019
Traditional directional relays of AC transmission lines are usually based on 50 Hz information in frequency domain in China. However, this conventional approach cannot provide the correct fault direction for the lines connected to wind farm because of ...
Yu Chen   +5 more
doaj   +1 more source

Influence Analysis of Current Limiting Reactor on Pole-to-Pole Short Circuit Fault in DC Distribution System [PDF]

open access: yesE3S Web of Conferences, 2021
With the development of power electronic technology, flexible DC distribution system has gradually become a research hotspot. Pole-to-pole short circuit fault is the most serious fault type in DC distribution system. When pole-to-pole short circuit fault
Wang Zhenyu   +5 more
doaj   +1 more source

Implications of fault current limitation for electrical distribution networks [PDF]

open access: yes, 2010
This paper explores the potential future need for fault current limitation in the UK's power system, and some of the technical implications of this change.
Blair, S.M.   +5 more
core   +1 more source

Emergency Loading of a Transformer in a Coordinated Substation at Different Dynamic Loading Conditions

open access: yesIEEE Open Journal of Industry Applications, 2021
Utility encounters situations like when one out of two power transformers in the substation requires maintenance and only one transformer remains in operation.
A B M Shafiul Azam   +3 more
doaj   +1 more source

Multiple-fault detection methodology based on vibration and current analysis applied to bearings in induction motors and gearboxes on the kinematic chain [PDF]

open access: yes, 2016
© 2016 Juan Jose Saucedo-Dorantes et al. Gearboxes and induction motors are important components in industrial applications and their monitoring condition is critical in the industrial sector so as to reduce costs and maintenance downtimes.
Delgado Prieto, Miquel   +4 more
core   +2 more sources

Series LC DC circuit breaker

open access: yesHigh Voltage, 2019
The article proposes a mechanical DC circuit breaker (CB) based on a series LC circuit. It requires two switches (a fast disconnector and an AC circuit breaker), an inductor and a capacitor, and therefore the cost is expected to be low.
Dragan Jovcic
doaj   +1 more source

Magneto-Thermo-Structural Analysis of Power Transformers under Inrush and Short Circuit Conditions

open access: yesEnergies, 2021
The main equipment responsible for connection and transmission of electric power from generating centers to consumers are power transformers. This type of equipment is subject to various types of faults that can affect its components, in some cases also ...
Antonio Roniel Marques de Sousa   +4 more
doaj   +1 more source

Arc extinction of DC side low-voltage breaker of charging device for battery pack in power plant based on insulated-gate bipolar transistor module series technology

open access: yesThe Journal of Engineering, 2019
The 110 V lead-acid battery pack is widely used as the DC power supply for the load control of power plants. If the low-voltage DC circuit breaker (LVDCCB) at the DC side of its charging device cannot operate in time when the fault current is flowing in ...
Fang Yao   +3 more
doaj   +1 more source

Improvement of Fault Current Calculation and Static Security Risk for Droop Control of the Inverter-Interfaced DG of Grid-Connected and Isolated Microgrids

open access: yesInventions, 2022
The contribution current of an inverter-interfaced distributed generator unit during a fault is one of the significant challenges for two modes: grid-connected and isolated AC microgrid.
Mahmoud Aref   +5 more
doaj   +1 more source

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