Results 271 to 280 of about 3,276,165 (313)

Design of over-current protection circuit for digital power amplifier

2016 International Conference on Emerging Trends in Electrical Electronics & Sustainable Energy Systems (ICETEESES), 2016
This work shows a modified excess current preservation circuitry for digital power amplifier. Excess current is a condition when a greater than required current occurs, which will be dangerous for our instrument. This preservation circuitry is useful to cut off the output buffer when two output pins short-circuit to Vcc, short-circuit to Gnd or short ...
Ashish Kumar Saxena, Amit Kumar
openaire   +1 more source

Improving the performance of smart grid over-current protection relays

2011 IEEE PES Innovative Smart Grid Technologies, 2011
Due to the significant increase in non linear loads and the worldwide trend to establish smart grids, harmonic level in the electricity grids is significantly increased. In addition to their impact on power quality, harmonic currents can have a devastating effect on power system protection performance especially on the operation of over current relays ...
Ahmed Abu-Siada, H. Tin, M. A. S. Masoum, Y. Qian   +3 more
openaire   +1 more source

Study of Over-Current Protection, Electric Arcing, and Fire Prevention

51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference<BR> 18th AIAA/ASME/AHS Adaptive Structures Conference<BR> 12th, 2010
The contribution of electrical wiring to ballistic threat-induced aircraft fires is a recognized, but poorly quantified vulnerability, particularly as modern aircraft continue to evolve. Electrical systems are increasingly replacing or supplementing mechanical systems.
Colin McCabe, Daniel Cyphers
openaire   +1 more source

Analysis and Optimization of LLC Resonant Converter with a Novel Over-Current Protection Circuit

INTELEC 05 - Twenty-Seventh International Telecommunications Conference, 2005
A novel over-current protection (OCP) method for a LLC resonant converter has been proposed in this paper. This method is very attractive for its inherent current limit ability, especially under short-circuit condition. Combined with the frequency increasing method, good current limit features can be achieved.
Xiaogao Xie, Junming Zhang, Chen Zhao, Zhuo Zhao, Zhaoming Qian   +4 more
openaire   +1 more source

Modern Concerns and Challenges of Over-Current Protection Coordination in Distribution Systems

2020 IEEE/IAS 56th Industrial and Commercial Power Systems Technical Conference (I&CPS), 2020
This paper summarizes different efforts to overcome the modern challenges of over-current protection coordination in distribution systems. A brief background is introduced from a general perspective and then specifically describing in detail the problem of equipment coordination with a thorough link among mathematical concepts and fundamentals in ...
Vincentius Raki Mahindara, David Celeita, Margo Pujiantara, Ardyono Priyadi, Mauridhi Hery Purnomo, Eduard Muljadi   +5 more
openaire   +1 more source

Real-time Implementation of Directional Over-current Protection Coordination in a Microgrid

2018 International Symposium on Recent Advances in Electrical Engineering (RAEE), 2018
This research paper is focused at the study and implementation of various protection relays and schemes in LabVIEW software for a small power system. The test power system is indigenously developed in the Lab. Hardware implementation is performed by using common modules available in laboratory, whereas interfacing is done by using LabVIEW.
Muhammad Abubakar, Muhammad Sarwar, Taimur Hayat Khan, Muhammad Sarmad, Babar Hussain   +4 more
openaire   +1 more source

Protection of Over Current Relay in Microgrid Protection Using ETAP

2023 International Conference on Energy, Materials and Communication Engineering (ICEMCE), 2023
M. Nanthini Kumara, M. Meenakshi Devi, M. Geethanjali, S. Vimala Devi   +3 more
openaire   +1 more source

Over current protection coordination of distribution networks with fault current limiters

2006 IEEE Power Engineering Society General Meeting, 2006
The connection of new Distributed Generator (DG) to the existing network increases the fault current and disturbs the existing Over Current (O/C) protection coordination. The main focus of this study was to investigate the possibility of using a Fault Current Limiter (FCL) to address the above issues.
Kumara, J. R. S. S., Atputharajah, A., Ekanayake, J. B., Mumford, F. J   +3 more
openaire   +2 more sources

Research on Realization of Over-Current Protection Based on Multi-Agent Strategy

Applied Mechanics and Materials, 2014
Targeting at the improvement and optimization of the deficiencies of traditional over-current protection, multi-agent strategy is applied in relay protection to improve the fast response of the backup protection. While confirming the feasibility of the above-mentioned strategy, PLC and field bus techniques are adopted to realize information interaction
Qian Rui, Su Qin Qian
openaire   +1 more source

Protection of microgrid through coordinated directional over-current relays

2014 IEEE Global Humanitarian Technology Conference - South Asia Satellite (GHTC-SAS), 2014
Microgrids integrate distributed energy resources to provide reliable, environment friendly and economic power to small/medium sized urban communities or to large rural areas. Due to the existence of generators at all levels of the distribution system and two distinct operating modes, i.e.
openaire   +1 more source