Results 31 to 40 of about 288,989 (348)
Gong-kuang zidonghua, 2018 In view of problems of low accuracy and poor reliability of line selection methods for single phase ground fault in existing coal mine power supply system, a line selection method for single phase ground fault in coal mine power supply system based on ...
LUO Chao +6 more
doaj +1 more source
IEEE Access, 2021 Accurate and fast fault detection in transmission lines is of high importance to maintain the reliability of power systems. Most of the existing methods suffer from false detection of high-impedance faults.
Hamid Teimourzadeh +4 more
doaj +1 more source
Modeling of HVDC System to Improve Estimation of Transient DC Current and Voltages for AC Line-to-Ground FaultAn Actual Case Study in Korea [PDF]
, 2019 A new modeling method for high voltage direct current (HVDC) systems and associated controllers is presented for the power system simulator for engineering (PSS/E) simulation environment.
Kim, Chanki +3 more
core +1 more source
Continuous comprehensive line selection technology based on D-S evidence theory
Energy Reports, 2022 Aiming at the single-phase grounding fault in 380 V three-phase AC power system with ungrounded neutral, a fault line selection method considering zero sequence current ratio method, zero sequence current phase ratio method and dual frequency method is ...
Kechang Dai, Zhihao Ye, Liang Chen
doaj +1 more source
A novel fault location method for a cross-bonded hv cable system based on sheath current monitoring [PDF]
, 2018 In order to improve the practice in the operation and maintenance of high voltage (HV) cables, this paper proposes a fault location method based on the monitoring of cable sheath currents for use in cross-bonded HV cable systems.
Huang, Xiaojun +6 more
core +1 more source
Turn-to-turn fault protection technique for synchronous machines without additional voltage transformers [PDF]
, 2017 This paper presents a novel protection technique for the detection of inter-turn faults in synchronous machines. It is based on the calculation of voltage in the stator windings from the usual phases and neutral voltage, typically available in ...
Gyftakis, Konstantinos N. +2 more
core +1 more source
Frontiers in Energy Research, 2023 The traditional method of detecting fault current based on threshold judgment method is limited by the current size and is easily disturbed by noise, and it is difficult to adapt to the arc ground fault detection of the distribution network.
Yihui Wu +5 more
doaj +1 more source
Model and Experimental Detection of Single Phase-to-Ground Fault for Overhead Wires in Distribution Networks by Location Method [PDF]
E3S Web of Conferences, 2020 The simulation model of the overhead transmission line channel implemented in PSCAD software allowing researches of location signal propagation via overhead lines of the distribution networks 6–35 kV under conditions of single phase-to-ground fault is ...
Renat Minullin +2 more
doaj +1 more source
Impact of hybrid renewable energy systems on short circuit levels in distribution networks [PDF]
, 2014 The effects of the distributed generation can be classified as environmental, technical and economical effects. It is playing a very vital role for improving the voltage profiles in electrical power systems.
Afifi, SN, Darwish, MK
core +1 more source
Archives of Electrical Engineering, 2020 When a single line-to-ground fault occurs in the ungrounded distribution system, the steady-state fault current is relatively small for fault analysis and the transient fault current is observable, which can be used for faulted feeder identification and ...
Ling Liu
doaj +1 more source