Results 51 to 60 of about 1,832 (200)
A capacitive high voltage DC circuit breaker incorporating a current limiting function
Zhejiang dianliDC circuit breakers， as one of the vital devices for fault clearance in DC power systems， significantly influence the secure and stable operation of the system.
TU Lizhong +4 more
doaj +1 more source
The Study About Low Voltage Circuit Breaker Mix Method Between IEC Circuit Breaker and Domestic Circuit Breaker [PDF]
The Transactions of The Korean Institute of Electrical Engineers, 2012 Recent WTO/TBT agreement was adopted by the IEC domestic. For this reason, low voltage electrical equipment was many Confusion arises. Low voltage circuit was also one of these. The case of low voltage circuit, existing domestic circuit breakers and circuit breakers IEC curve differs from the behavior of each other. If low voltage circuit breaker wrong
Jin-Soo Jung +4 more
openaire +1 more source
Energy Conversion and Economics, EarlyView.Abstract An effective method for detecting cyberattacks is essential to the security of smart grids (SGs). In SGs, data from both cyber and physical domains can support attack detection. However, existing works insufficiently consider the heterogeneity, high dimensionality, and cross‐domain correlations of multi‐source data, affecting model ...
Qize Gao +5 more
wiley +1 more source
Energy Conversion and Economics, EarlyView.Abstract Against the backdrop of renewable energy achieving full market integration, renewable energy forecasting deviations have become a critical bottleneck constraining the clearing efficiency of electricity spot markets, hindering the rational allocation of costs, and threatening the secure operation of the power system.
Sicheng Xu +5 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT This paper presents a simplified equivalent circuit model (ECM) for the post‐arc sheath stage in DC vacuum circuit breakers and outlines the method for calculating circuit parameters using the particle‐in‐cell Monte Carlo collision (PIC‐MCC) method. The post‐arc sheath is modelled as a parallel combination of a variable resistor and a variable
Xubin Li +5 more
wiley +1 more source
Surface Micro‐Discharge Plasma for Multiple Teeth Bleaching: Efficacy, Mechanism and Safety
High Voltage, EarlyView.ABSTRACT Hydrogen peroxide (H2O2) is the commonly‐used bleaching chemical in clinical practice, but its excessive concentrations can cause tooth damage. Atmospheric pressure cold plasma is considered a promising new technique for tooth bleaching. Surface micro‐discharge (SMD) devices can generate large‐scale plasma, which holds potential for treating ...
Ruike Chen +7 more
wiley +1 more source
Reducing the Impacts of Distributed Generation in Transmission & Distribution Networks Protection Using Fault Current Limiters [PDF]
Engineering and Technology Journal, 2013 Increase in power generation capacity of electric power systems has lead to increase in the fault current level. In some cases fault current levels are exceeding the interrupting capability of existing transmission and distribution substations circuit ...
Wafaa Saeed
doaj +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
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