Results 1 to 10 of about 5,009,115 (304)

Differential protection against SARS-CoV-2 reinfection pre- and post-Omicron. [PDF]

Nature
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly evolved over short timescales, leading to the emergence of more transmissible variants such as Alpha and Delta1, 2–3.
Chemaitelly H, Ayoub HH, Coyle P, Tang P, Hasan MR, Yassine HM, Al Thani AA, Al-Kanaani Z, Al-Kuwari E, Jeremijenko A, Kaleeckal AH, Latif AN, Shaik RM, Abdul-Rahim HF, Nasrallah GK, Al-Kuwari MG, Butt AA, Al-Romaihi HE, Al-Thani MH, Al-Khal A, Bertollini R, Abu-Raddad LJ.   +21 more
europepmc   +2 more sources

A Coordinated Multi-Element Current Differential Protection Scheme for Active Distribution Systems

IEEE Transactions on Power Delivery, 2022
This paper introduces a current differential protection scheme, appropriate for application in medium voltage active distribution systems, where it is desired to keep the greatest possible number of loads and DG units energized during a fault ...
Vassilis C Nikolaidis, Aristotelis M Tsimtsios, Dimitrios Tzelepis   +2 more
exaly   +2 more sources

Ultra-fast current differential protection with high-sensitivity for HVDC transmission lines

International Journal of Electrical Power and Energy Systems, 2021
Protection of transmission lines is the most important defense against faults in multi-terminal HVDC system. Up until now, no single protection can balance the operation speed and sensitivity needed for all fault types.
Haijin Liu, Bin Li, Weijie Wen
exaly   +2 more sources

Multi-sample differential protection scheme in DC microgrids [PDF]

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020
This paper proposes a novel solution to the issue of protection instability caused by time synchronization error in high-speed differential protection schemes for DC microgrids.
Rakhra, Puran, Burt, Graeme, Li, Chunpeng, Norman, Patrick, Clarkson, Paul   +4 more
core   +2 more sources

A d-axis based current differential protection scheme for an active distribution network

Protection and Control of Modern Power Systems, 2022
The emergence of distributed generators has changed the operational mode and fault characteristics of the distribution network, in a way which can severely influence protection.
Lindong Zang, G. Zou, Chenghan Zhou, Maoran Zheng, Tao Du   +4 more
semanticscholar   +1 more source

A Clarke-Wavelet-Based Time-Domain Power Transformer Differential Protection

IEEE Transactions on Power Delivery, 2022
Phasor-based differential protection is widely used as the main protection function of the power transformer due to its reliability and ability to discriminate internal from external faults and inrush currents.
R. Medeiros, Flavio Bezerra Costa, Kleber Melo Silva, José de Jesús Chávez Muro, Jose Raimundo Lima Júnior, M. Popov   +5 more
semanticscholar   +1 more source

Differential Protection Algorithm Founded on Kalman Filter-Based Phase Tracking

IEEE Transactions on Instrumentation and Measurement, 2022
Owing to the large magnitude of the inrush currents, the functionality of differential protection of power transformer may be threatened in correct discrimination between inrush and internal faults. This article enhances the functionality of differential
Mohsen Tajdinian, H. Samet, Ziad M. Ali
semanticscholar   +1 more source

Transformer Differential Protection

European Journal of Engineering and Technology Research, 2020
Overcurrent and earth fault protective equipment employing time grading and directional detection cannot provide correct discrimination on all power networks and in many cases clearing times for some faults would not be acceptable. Differential protection is an alternative overcurrent protective scheme, which is used to protect individual sections of ...
Edwin Ejiofor Ezema, Aniagboso John Onah
openaire   +1 more source

Fasting and differential chemotherapy protection in patients [PDF]

Cell Cycle, 2010
Chronic calorie restriction has been known for decades to prevent or retard cancer growth, but its weight-loss effect and the potential problems associated with combining it with chemotherapy have prevented its clinical application. Based on the discovery in model organisms that short term starvation (STS or fasting) causes a rapid switch of cells to a
Raffaghello L, Safdie F, Bianchi G, Dorff T, FONTANA, Luigi, Longo V.D.   +5 more
openaire   +5 more sources

Testing a Bus-Differential Protection for Buses Interconnecting Battery Storage Systems

IEEE transactions on industry applications, 2021
This article presents the implementation and performance testing of a bus-differential protection for buses, which interconnect battery storage systems (BSSs). The proposed bus-differential protection is based on employing the $\alpha \beta 0$ components
S. Saleh, E. Ozkop, C. Mardegan, M. Valdes   +3 more
semanticscholar   +1 more source