Results 31 to 40 of about 2,536,520 (305)
A novel chopping current protection circuit for intrinsically safe power supply
Gong-kuang zidonghua, 2016 For problems that traditional chopping current protection circuit had small cut-off current value and poor anti load impact ability, and needed additional recovery circuit or manual circuit after over-current fault, a novel chopping current protection ...
FANG Xupeng +4 more
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Reverse Blocking Over Current Busbar Protection Scheme Based on IEC 61850 Architecture
IEEE transactions on industry applications, 2023 Substation Automation System (SAS) is currently in a matured state of technology that shall facilitate transformational changes from conventional protection scheme.
Shantanu Kumar +3 more
semanticscholar +1 more source
Energy Reports, 2022 Under the development trend of AC/DC hybrid power grids, converter transformers are indispensable as AC/DC conversion equipment, whose safety and stability are particularly important.
Yuanlin Pan +5 more
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Gong-kuang zidonghua, 2019 Over-voltage and over-current protection are two forms of over-voltage and over-current protection sequences of intrinsic safety power supply. In order to study the influence of different protection sequence forms on safety performance of intrinsic ...
BAO Changjun +4 more
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A Switch Partial Turned OFF Cycle by Cycle Current Limiting Method for 3L-NPC Half-Bridge Inverters
IEEE Access, 2020 Instantaneous hardware protection is a very important method to protect inverters at the moment of over current or short circuit fault. For standalone inverters, the hardware protection can also be modified to achieve current limiting during the over ...
Xun Gao +5 more
doaj +1 more source
Energy Reports, 2022 Inverse time overcurrent protection can be applied to distribution networks with distributed power sources because of its superior protection characteristics, but its time limit coordination and value setting are complicated, which limits its large-scale
Yang Yu +4 more
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Protective coordination of main and backup overcurrent relays with different operating modes of active super-conducting current controller [PDF]
Maejo International Journal of Science and Technology, 2014 Active superconducting current controllers (ASCCs) are new generation of series compensators, which can also be categorised as fault current limiters because of their ability to decrease the fault current continuously.
Ahmad Ghafari +3 more
doaj +1 more source
Pakistan Journal of Engineering & Technology, 2022 Although traditional electromechanical circuit breakers have a proven track record as efficient and reliable circuit safety devices. Emerging power distribution technologies and architectures such as DC microgrids require advanced breaking performance ...
Muhammad Zulqair Nain, Tahir Mahmood
doaj +1 more source
Hybrid reed: Solid-state devices are a new generation of protective relays [PDF]
Serbian 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
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Distance protection and fault location of the PV power plants distribution lines
The 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
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