Results 51 to 60 of about 8,801 (231)

Surface Flashover in 50 Years: III. Extreme Environments and Industrial Challenges

open access: yesHigh 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
wiley   +1 more source

The suitability of N2 to replace SF6 in a triggered spark-gap switch for pulsed power applications [PDF]

open access: yes, 2009
The high dielectric strength of sulphur hexafluoride (SF6) when compared with other gases, coupled with safety benefits such as non-flammability and non-toxicity, has seen the widespread use of SF6 for the insulation of switching components. However, SF6
Given, M.J.   +6 more
core  

Impact Assessment of Hypothesized Cyberattacks on Interconnected Bulk Power Systems

open access: yes, 2018
The first-ever Ukraine cyberattack on power grid has proven its devastation by hacking into their critical cyber assets. With administrative privileges accessing substation networks/local control centers, one intelligent way of coordinated cyberattacks ...
Ginter, Andrew   +4 more
core   +1 more source

Post‐Arc Transient Dielectric Recovery Characteristics of Vacuum Interrupter in the Large‐Capacity Generator Circuit Breaker

open access: yesHigh 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

Impact Factor Identification for Switching Overvoltage in an Offshore Wind Farm by Analyzing Multiple Ignition Transients

open access: yesIEEE Access, 2019
This paper investigates the impact factors of switching transient overvoltage (SOV) in an offshore wind farm (OWF) by analyzing multiple ignitions of a vacuum circuit breaker.
Jiujiang Zhou   +4 more
doaj   +1 more source

Research on Flexible Operation Control Strategy of Motor Operating Mechanism of High Voltage Vacuum Circuit Breaker

open access: yesEnergies
In order to solve the problem that it is difficult to take into account the performance constraints between the core functions of insulation, current flow and arc extinguishing of high-voltage vacuum circuit breakers at the same time, this paper proposes
Dongpeng Han, Weidong Chen, Zhaoxuan Cui
doaj   +1 more source

Hybrid phase-controlled circuit breaker with switch system used in the railway auto-passing neutral section with an electric load

open access: yesCSEE Journal of Power and Energy Systems, 2019
Constrained by the characteristics of neutral sections (NS) and traditional vacuum circuit breakers, previous phase-controlled strategies have a long power supply dead time, it is difficult to realize a continuous power supply to the auxiliary power ...
Shuo Wang   +6 more
doaj   +1 more source

High Speed Solid State Circuit Breaker [PDF]

open access: yes, 1993
The U.S. Army Research Laboratory, Fort Monmouth, NJ, has developed and is installing two 3.3 MW high speed solid state circuit breakers at the Army's Pulse Power Center. These circuit breakers will interrupt 4160V three phase power mains in no more than
Podlesak, Thomas F.
core   +1 more source

Fossil Hegemony and Capitalist Realism in Tropic of Orange

open access: yesFuture Humanities, Volume 4, Issue 1, May 2026.
ABSTRACT This article examines Karen Tei Yamashita's Tropic of Orange (1997) through the lens of Mark Fisher's influential concept ‘capitalist realism’. Scholars of petrofiction have pointed to a political ambivalence in the representation of fossil fuels, where a better understanding of fossil capital can overwhelm as much as galvanize.
Claire Ravenscroft
wiley   +1 more source

Research on Vibration Measurement and Analysis Technology of Circuit Breaker Based on VMD and LSTM

open access: yesApplied Sciences
In this paper, we propose a mechanical fault diagnosis technology for circuit breakers based on the NGO-VMD, aiming to improve the accuracy and efficiency of fault diagnosis.
Jia Hao   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy