Results 31 to 40 of about 395,154 (260)
Model Free Traveling Wave Based Fault Location Method for Series Compensated Transmission Line
IEEE Access, 2020 Locating fault position in a series compensated transmission line is a difficult task due to the non-linear characteristics of the metal-oxide varistor which is present in the protection system of the compensator. In this paper, a model-free two-terminal
O. D. Naidu, Ashok Kumar Pradhan
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Superior performing nano‐enabled metal oxide varistors [PDF]
International Journal of Ceramic Engineering & Science, 2019 AbstractCommercial metal oxide varistor devices are subject to nonuniformity, defects and coarse grain size, low working voltage, high leakage current, and mechanical cracking issues. This work tempted to make use of nanopowders and alternative sintering processes to achieve uniform microstructure and superior varistor performance.
openaire +1 more source
Impulse Life Evaluation Method of MOV Based on Weibull Distribution
IEEE Access, 2021 The working life evaluation of metal oxide varistor (MOV) is always expected by MOV manufacturers and users. In Oct. 2019, the International Electrotechnical Commission (IEC) SC37B established a project team PT 61643–333 led by the author of this ...
Qibin Zhou +3 more
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Προστασία επαφών ηλεκτρονόμου με varistor [PDF]
, 2016 Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία.
Mavrakis, Vasileios +1 more
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Two basic ways to realise DC circuit breakers
The Journal of Engineering, 2019 As a key element of the DC grid, the technology of DC circuit breakers (DCCBs) still have difficulty to be widely used due to its large cost and volume. This paper studies the basic principle and its realisation methods for DCCBs.
Zheng Xu +3 more
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Reduction Reactive Power and Collapse Voltage Using Series Capacitors Compensation in Sudden Change Loads of Transmission Lines [PDF]
Engineering and Technology Journal, 2012 The continuous increase of disturbances on the interconnected electric power system resulting in its inability to reliably meet demands. This paper presents an application of a series capacitor compensation in transmission line and shunt reactors ...
Hussein Thani Rishag
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Field-enhanced bulk conductivity and resistive-switching in Ca-doped BiFeO3 ceramics [PDF]
, 2014 The bulk conductivity at room temperature of Ca-doped BiFeO3 ceramics is p-type and increases reversibly by up to 3 orders of magnitude under the influence of a small dc bias voltage in the range B3 to 20 V mm1 .
Beltrán Mir, Héctor +4 more
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Surface Flashover in 50 Years: III. Extreme Environments and Industrial Challenges
High Voltage, EarlyView.ABSTRACT Modern high‐voltage electrical equipment operates in complex environments where surface conditions are subjected to multifaceted influences from electric fields, thermal gradients, contaminants, irradiation and other extreme environmental factors.
Zhen Li +6 more
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The Scientific World Journal, 2015 Metal oxide varistors (MOVs) are a type of resistor with significantly nonlinear current-voltage characteristics commonly used in power lines to protect against overvoltages.
Toni Gutknecht +4 more
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Influence of UHV GIL access on transient recovery voltage of circuit breaker
电力工程技术, 2022 The access of ultra high voltage (UHV) gas-insulated transmission line (GIL) affects both the transient recovery voltage (TRV) amplitude and the rate of rise of TRV (RRRV) of circuit breakers,which may endanger the breaking capacity of circuit breakers ...
SUN Yi +5 more
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