Results 11 to 20 of about 19,321 (267)

Overcurrent and Directional Overcurrent Protection for Microgrid

open access: yesAndalasian International Journal of Applied Science, Engineering and Technology, 2023
Microgrids will become common in future electrical distribution networks. Numerous operating modes that occur in microgrids make the development of protection schemes and settings challenging.  This paper aims to develop a simple protection scheme for the Microgrid IEC Benchmark without any expensive equipment such as communication apparatus.
Zahira Shiva Salsabila   +2 more
openaire   +1 more source

Determination of Relay Opening Current Information and Coordination of Distribution Network of Sakarya Province, Yazlık Region

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
Electricity is delivered to end users through generation, transmission, and distribution phases. The most important issues during energy journey is to provide selective, rapid, and safe protection to ensure energy continuity.
Uğur Arifoğlu   +2 more
doaj   +1 more source

Study on the IGBT Overcurrent Failure of VSC-HVDC Converter Valve

open access: yesZhongguo dianli, 2021
IGBT overcurrent failure, which is one of the important factors harming VSC-HVDC safe operation, can easily lead to module explosion, water cooling system leakage and even the converter valve shutdown.
Jingbo FENG   +4 more
doaj   +1 more source

Optimal overcurrent relay coordination for interconnected power systems: A proper approach and improved technique

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
The optimum setting of directional overcurrent relays (DOCRs) is required to avoid miscoordination and avail fast response. To fulfill these requirements, it is required to prefer optimization techniques and modifications in objective functions (OF ...
Shanker D. Godwal   +4 more
doaj   +1 more source

Adaptive overcurrent protection scheme for distribution networks with connection of mobile energy storage devices

open access: yesEnergy Reports, 2023
The increasing penetration of renewable energy sources in distribution networks has caused great challenges to the reliable operation of the conventional overcurrent protection schemes.
Lijing Sun   +6 more
doaj   +1 more source

Overcurrent Abuse of Primary Prismatic Zinc–Air Battery Cells Studying Air Supply Effects on Performance and Safety Shut-Down

open access: yesBatteries, 2017
Overcurrent abuse has been performed on commercial 48 Ah primary prismatic zinc (Zn)–Air battery cells with full air supply as well as with shut-off air supply.
Fredrik Larsson   +4 more
doaj   +1 more source

Improvement of overcurrent protection for control rod drive mechanism power system

open access: yesEnergy Reports, 2023
Control rod drive mechanism (CRDM) in nuclear reactors powered by two motor generator units running in parallel, an excitation fault in one of the generators will cause the terminal current to rise in another generator, which will cause the overcurrent ...
Lingjin Zhu   +7 more
doaj   +1 more source

Analysis and hardware testing of cell capacitor discharge currents during DC faults in half-bridge modular multilevel converters [PDF]

open access: yes, 2015
This paper focuses on the behaviour of the cell capacitor discharge currents during DC faults in half-bridge modular multilevel converters. Active switches, not designed for fault conditions, are tripped to minimize discharge currents effect on the ...
Aboushady, A.A., Ahmed, K.H., Jovcic, D.
core   +2 more sources

Fireproof and energy saving mobile phone charger

open access: yesDianzi Jishu Yingyong, 2019
Both forgetting to unplug mobile phone chargers after using and generating large surge current when the charger is plugged into power, will accelerate the aging of high-voltage electronic components. It is also prone to failure and fire. In addition, the
Yin Jingwen, Lin Jinghu, Jin Yonggao
doaj   +1 more source

Thermal analysis of lithium ion battery-equipped smartphone explosions [PDF]

open access: yes, 2019
Thermal management of mobile electronics has been carried out because performance of the application processor has increased and power dissipation in miniaturized devices is proportional to its functionalities.
Chen   +23 more
core   +1 more source

Home - About - Disclaimer - Privacy