[Introduction] The safe and stable operation of UHV transmission lines is essential to the safety of power grids. When the new substation deconstructs the original long line in the power grid planning and construction, the following problems, such as the
ZHENG Xing, CHEN Yipeng, QI Donghui
doaj +1 more source
Tower grounding improvement versus line surge arresters: comparison of remedial measures for high-BFOR subtransmission lines [PDF]
This paper presents a technical/economic comparison between remedial measures aimed at improving the lightning performance of an existing Italian three-phase 150-kV overhead line.
GATTA, Fabio Massimo +4 more
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This paper proposes three techniques for locating lightning strikes in a 115 kV transmission system over 88.5 km, based on the arrival time of a transient wave obtained from a discrete wavelet transform (DWT).
Pathomthat Chiradeja +1 more
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Monte Carlo evaluation of the impact of subsequent strokes on backflashover rate [PDF]
The paper deals with the impact of subsequent strokes on the backflashover rate (BFR) of HV overhead transmission lines (OHLs), assessed by means of an ATP-EMTP Monte Carlo procedure.
Gatta, Fabio Massimo +3 more
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An equivalent circuit for the evaluation of cross-country fault currents in medium voltage (MV) distribution networks [PDF]
A Cross-Country Fault (CCF) is the simultaneous occurrence of a couple of Line-to-Ground Faults (LGFs), affecting different phases of same feeder or of two distinct ones, at different fault locations.
Gatta, Fabio Massimo +3 more
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Simulation of electromagnetic influence of railway overhead contact system on disconnected transmission lines by the ATP-EMTP programme [PDF]
This paper is devoted to experimental and calculating research of induced voltage on disconnected transmission lines caused by the influence of AC railway overhead contact system.
Zalesova O. V.
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An Effective EMTR-Based High-Impedance Fault Location Method for Transmission Lines
This paper summarizes the electromagnetic time reversal (EMTR) technique for fault location, and further numerically validates its effectiveness when the fault impedance is negligible. In addition, a specific EMTR model considering the fault impedance is
An, Jianwei +3 more
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Overview of Transient Simulations of Grounding Systems under Surge Conditions
The present paper gives an overview of modelling methods of standard grounding systems under surge conditions, using the non-uniform transmission line approach.
Tomasz Kisielewicz, Milton Cuenca
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Investigation of overvoltage on square, rectangular and L-shaped ground grids of high voltage substations by ATP/EMTP [PDF]
Ground grid system is important for preventing the hazardous effects of overvoltage in high voltage substations due to fault current perhaps from lightning strike or device malfunction.
Luewattana, Krung, Rattanasena, Paweena
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Modelling of a 400-kV MSCDN reactor for computation of voltage and field distributions during switching transients [PDF]
In this paper, a model for the reactor of a 400-kV mechanically switched capacitor with damping network (MSCDN) based on an equivalent circuit representation is developed.
Abdul Hamid, Haziah +3 more
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