Results 61 to 70 of about 18,954 (240)
EnergiesThe studies on strategies for improving restoration times in electrical distribution systems are extensive. They have theoretically explored the application of mathematical models, the implementation of remotely controlled systems, and the use of digital
Carlos Sánchez-Ixta +3 more
doaj +1 more source
High Voltage, EarlyView.ABSTRACT Strong wind–sand weather in Xinjiang threatens power grid safety by increasing transmission line tripping risks. Existing studies focus on sand polarization but neglect the coupled influence of high‐speed airflow and charged sand on gap discharge characteristics.
Jianghai Geng +8 more
wiley +1 more source
Research on optimisation of minimum air clearance of 1000 kV UHV AC substation
The Journal of Engineering, 2019 Based on air clearance discharge characteristic curve and insulation coordination method, it is pointed out that the minimum air clearance of 1000 kV ultra-high voltage (UHV) AC substation can be further optimised.
Li Zhenqiang +3 more
doaj +1 more source
High Voltage, EarlyView.ABSTRACT The thermal state of underground power cables can be monitored based on the temperature dependency of the dielectric permittivity of the insulation material. The resulting temperature‐dependent wave velocity is used as a thermometric property. To this end, the signal propagation time along a cable of an injected signal is determined.
Peter Wouters +2 more
wiley +1 more source
The Journal of Engineering, 2019 In hierarchically connected UHV DC projects, the 1000 kV AC filter sub-bank in converter station is provided with two 500 kV circuit breakers. To determine the test DC component decay time constant when breakers break short-circuit current, relevant DC ...
Li Zhenqiang +3 more
doaj +1 more source
New topology for voltage balancing in railway substations
, 2012 This paper deals with a new technique of voltage unbalance compensation for single phase railway substations. Using the concept of Chopper Controlled Impedance, the authors study the feasibility of an active Steinmetz circuit based on AC choppers.
New topology for voltage balancing in railway substations Raimondo G +3 more
core
High Voltage, EarlyView.ABSTRACT Heavy construction machinery is essential for power infrastructure construction and maintenance, making safety distance measurement crucial for ensuring operational safety. Existing methods, which rely on target space mapping, face challenges such as error accumulation and limited accuracy.
Fuqi Ma +4 more
wiley +1 more source
STANDARDS IN CONTROL AND PROTECTION TEHNOLOGY FOR ELECTRIC POWER SYSTEMS [PDF]
The features of the standard IEC 16850 with respect to intelligent applications in substations are summarized. It is shown how modeling of functions independently from its allocation to devices allows optimizing existing applications and opening up for ...
Sergiu St. ILIESCU +3 more
core +2 more sources
Installation vessels for floating wind offshore substations [PDF]
This paper addresses the selection of optimal installation vessels for the assembly of offshore wind substations so as to reduce costs. Various options are available for substations, namely fixed, floating, and subsea.
A Crowle (21928691)
core +6 more sources
ARCADES: analysis of risk from cyberattack against defensive strategies for the power grid
IET Cyber-Physical Systems, 2018 In this study, the authors introduce ARCADES (Analysis of Risk from Cyberattack against DEfensive Strategy), a technique to systematically explore the cybersecurity defence strategies based on contingency rankings in power systems.
Md Touhiduzzaman +3 more
doaj +1 more source