Results 31 to 40 of about 18,016,189 (287)
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
doaj +1 more source
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
doaj +1 more source
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
Heliyon, 2021 Protection coordination of AC microgrids (MGs) is a challenging task since they can operate either in grid-connected or islanded mode which drastically modifies the fault currents.
Sergio D. Saldarriaga-Zuluaga +2 more
doaj +1 more source
Energies, 2020 This paper presents an improved inverse-time over-current protection method based on the compound fault acceleration factor and the beetle antennae search (BAS) optimization method for a microgrid.
Liang Ji +7 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
doaj +1 more source
Real-time teleprotection testing using IP/MPLS over xDSL [PDF]
, 2013 Teleprotection for power systems is safety-critical and has demanding requirements for bandwidth, low latency, and low jitter. Traditionally, time-division multiplexing (TDM) using SONET/SDH circuits has been used to provide this quality of service ...
Blair, Steven Macpherson +1 more
core +3 more sources
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
doaj +1 more source