Results 31 to 40 of about 3,255,424 (314)

Hybrid reed: Solid-state devices are a new generation of protective relays [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2007
Research and development in the field of electromechanical protective relays has not been conducted for tens of years. Author’s approach allows viewing the problem of re-equipment of relay protection in a new way.
Gurevich Vladimir
doaj   +1 more source

Optimization of Impedance-Accelerated Inverse-Time Over-Current Protection Based on Improved Quantum Genetic Algorithm

open access: yesEnergies, 2023
This paper proposes an impedance-accelerated inverse-time over-current protection optimization scheme based on the improved quantum genetic algorithm. First, the speed of remote backup protection is improved by increasing the optimization level of backup
Xia Zhang   +4 more
doaj   +1 more source

A 5.3mW, 2.4GHz ESD protected Low-Noise Amplifier in a 0.13μm RFCMOS technology [PDF]

open access: yes, 2007
An Electrostatic Discharge (ESD) protected Low- Noise Amplifier (LNA) for the 2.4 GHz ISM band designed in a 0.13 mum standard RFCMOS technology is presented. The amplifier, including packaging effects, achieves 16.8 dB power gain, reflexion coefficients
Brandano, Davide   +3 more
core   +1 more source

Distance protection and fault location of the PV power plants distribution lines

open access: yesThe Journal of Engineering, 2019
Unlike the synchronous generators, the short-circuit current provided by the photovoltaic (PV) sources is limited by the grid-connected inverters and closely related to the normal conditions, which impacts the protection of the power systems.
Elshiekh K. Mohammedsaeed   +3 more
doaj   +1 more source

Optimal Quantization of TV White Space Regions for a Broadcast Based Geolocation Database

open access: yes, 2015
In the current paradigm, TV white space databases communicate the available channels over a reliable Internet connection to the secondary devices. For places where an Internet connection is not available, such as in developing countries, a broadcast ...
Kumar, Animesh, Maheshwari, Garima
core   +1 more source

Development of fast electronic over-current protection circuit using current-adjustable sensing method

open access: yesAdvances in Mechanical Engineering, 2018
Traditional methods to protect the electric-driven facilities from overload or short circuit usually use electronic breaker or fuse. However, the reaction time for these devices normally require more than 0.1 s that may be not sufficiently fast to ...
Hsiung-Cheng Lin   +3 more
doaj   +1 more source

Protection coordination of directional over current relay with distributed generation

open access: yesIndonesian Journal of Electrical Engineering and Computer Science, 2022
The present <span lang="EN-US">study is focussed on a comparative analysis of different meta-heuristic optimization approaches for directional overcurrent relay (DOCRs) coordination which has been discussed and presented in the literature. Further, to have a comparative analysis of the performance of the optimization methods discussed they have ...
Jayant Mani Tripathi   +6 more
openaire   +1 more source

Modelling and analysis of asymmetrical latency in packet-based networks for current differential protection application [PDF]

open access: yes, 2018
Current differential protection typically requires symmetrical communications channels—with equal latency in each direction—for correct operation.
Blair, Steven M.   +4 more
core   +1 more source

Parent Quality of Life at Two Years Following Their Child's Completion of Acute Lymphoblastic Leukemia Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Parents of children treated for acute lymphoblastic leukemia (ALL) often experience significant caregiver burden and disruption to their well‐being. While parent quality of life (QoL) during treatment is well characterized, little is known about outcomes during early survivorship.
Sara Dal Pra   +3 more
wiley   +1 more source

Temporary Protection: Towards a New Regional and Domestic Framework [PDF]

open access: yes, 1998
During the past thirty-five years, the United States has seen the direct influx of thousands of individuals leaving politically unstable countries. While some seeking entry have proved themselves to be refugees and obtained permanent protection in the ...
Martin, Susan   +2 more
core   +1 more source

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