Results 91 to 100 of about 39,622 (243)
China Suspends Circuit Breakers [PDF]
, 2016 Circuit breakers are designed to slow down (or even halt) panicked selling. However, Chinese authorities recently suspended their newly implemented circuit breakers, as they seemed to be increasing panic (as opposed to reducing it).
Dolvin, Steven D.
core +1 more source
High Voltage, EarlyView.ABSTRACT Large‐capacity generator circuit breaker (GCB) based on vacuum interrupter technology is the key power equipment to ensure the safe operation of the power system. When the short‐circuit current was forced to cross zero, the large‐capacity GCB was difficult to generate a zero‐voltage environment through freewheeling, the vacuum interrupter (VI)
Xiangyu Han +8 more
wiley +1 more source
Circuit breakers with uncertainty about the presence of informed agents: I know what you know . . . I think [PDF]
, 2002 This study conducts experimental asset markets to examine the effects of circuit breaker rules on market behavior when agents are uncertain about the presence of private information. Our results unequivocally indicate that circuit breakers fail to temper
Ackert, Lucy F. +2 more
core
Field - Effect Switching in Nano-Graphite Films
, 2013 The effect of electrical resistivity switching in nanographite films is described. In difference with cases published elsewhere the switching in nanographite films occurs from stable high conductive to metastable low conductive state. Critical current of
Lebedev, Sergey G.
core +1 more source
Determination of protection system requirements for DC UAV electrical power networks for enhanced capability and survivability [PDF]
, 2011 A growing number of designs of future Unmanned Aerial Vehicle (UAV) applications utilise dc for the primary power distribution method. Such systems typically employ large numbers of power electronic converters as interfaces for novel loads and generators.
Burt, Graeme +3 more
core +1 more source
High Voltage, EarlyView.ABSTRACT Currently, limited research exists on the structural response and protection methods of the converter transformer tank for ± 800 kV ultra‐high voltage direct current transmission project to high energy arc faults. This research investigates the dynamic response and the vulnerable areas of the ultra‐high voltage converter transformer under the ...
Ke Wang +5 more
wiley +1 more source
Calculation Method and Influencing Factors of the Maximum Breaking Current of SF6 Circuit Breaker
IEEE AccessAt present, there is a lack of research on the evaluation of the maximum breaking current of circuit breakers in arc simulation of SF6 circuit breakers.
Li Duanjiao +7 more
doaj +1 more source
Modular multilevel converter with modified half-bridge submodule and arm filter for dc transmission systems with DC fault blocking capability [PDF]
, 2018 Although a modular multilevel converter (MMC) is universally accepted as a suitable converter topology for the high voltage dc transmission systems, its dc fault ride performance requires substantial improvement in order to be used in critical ...
Abdelsalam, Ibrahim A. +3 more
core +2 more sources
Influence of Arc Faults on Pressure Production Characteristics in AC Turret of UHV Transformers
High Voltage, EarlyView.ABSTRACT The overpressure caused by arc fault in the oil tank can lead to a transformer explosion. Since the AC turret of transformers serves to connect the transformer windings with the AC busbar, the arc current can be extremely high if an earth fault arc occurs leading to potentially hazardous pressure.
Yuhang Li +4 more
wiley +1 more source
Fault Diagnosis of High-Voltage Circuit Breakers Using Mechanism Action Time and Hybrid Classifier
IEEE Access, 2019 Accurate fault diagnosis of high-voltage circuit breakers is crucial for the safety of power grids. Mechanism action time, though can reflect the state of high-voltage circuit breakers, is usually difficult to obtain, as multiple sensors are required for
Shuting Wan, Lei Chen
doaj +1 more source