Patent
Method for selecting fault phase of alternating current transmission line by using transient energy
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The article was published on 2013-04-03. It has received 12 citations till now. The article focuses on the topics: Fault (power engineering) & Transient (oscillation).read more
Citations
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Patent
Simulation after test approach for alternating current (AC) transmission line fault phase selection based on lumped parameter T model
TL;DR: In this article, the authors provided a simulation after test approach for alternating current transmission line fault phase selection based on a lumped parameter T model, belonging to the technical field of relay protection of a power system.
Patent
Method for imitating fault phase selection of alternating current transmission line after measurement based on concentration parameter pi model
TL;DR: In this article, the authors proposed a method for imitating the fault phase selection of an alternating current transmission line after measurement based on a concentration parameter pi model, and belongs to the technical field of relay protection of electric power systems.
Patent
High-resistance fault detection method utilizing linear-mode current difference quadratic sum
TL;DR: In this article, the authors proposed a high-resistance fault detection method utilizing linear-mode current difference quadratic sum and belongs to the power system relay protection technical field, where the method comprises the following steps that: under a sampling rate of 20kHz, a measuring end is utilized to obtain three-phase current sampling values, so that linear mode current is obtained; difference of two adjacent linear mode sampling values is calculated.
Patent
Single-end positioning method for single-phase grounding fault of high-voltage cable by using fault boundary condition
TL;DR: A single-end positioning method for a single-phase grounding fault of a high-voltage cable by using a fault boundary condition is proposed in this paper, which is theoretically not affected by fault transition resistance and a fault initial angle, furthermore, only data recorded by a single side protection device are needed; a fault position can be also effectively determined in case of a near bus fault.
Patent
Bergeron-model-based simulation-after-test method for fault phase selection of alternating current transmission line
TL;DR: In this paper, a Bergeron-model-based simulation-after-test method for the fault phase selection of an alternating current transmission line is presented. But the method is not suitable for relay protection.
References
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Low current neutral grounding system fault route selecting method by wavelet package decompose and correlation analysis
Hongchun Shu,Xingbing Zhao,Shixin Peng,Bin Li,Dong Jun,Lan Tang,Zhijian Liu,Kezhen Liu,Shiyun Sun,Gefei Qiu +9 more
TL;DR: In this paper, a small current grounding system fault line selecting method by wavelet package decomposition and relevant analysis, belonging to the power system relay protection technical field, is proposed.
Patent
Method for identifying extra-high voltage direct current transmission line area inside and outside fault wavelet energy
TL;DR: In this paper, a method for identifying extra-high voltage direct current transmission line area inside and outside fault wavelet energy was proposed, where the direct current voltage data were a discrete signal with sampling frequency of 100 kHz and sample sequence length of 500.
Patent
Vehicle AC Ground Fault Detection System
Albert Trenchs,Yann Darroman +1 more
TL;DR: In this paper, a vehicle ground fault detection system for detecting a ground fault includes a fault detection circuit having a resistance element, which is connected to an electrical switching circuit for selectably coupling the other side of the resistance element to a secondary ground.
Patent
Phase selection method of single loop fault based on one-end current temporary state informations
TL;DR: In this article, the authors proposed a method for detecting wire fault phase based on interrelation of magnitude of energy function in three modulus transient current in high frequency, which can detect fault phase especially under high-ohmic resistor grounding.
Patent
Ground fault detection circuit and ground fault detection method
TL;DR: In this article, a ground fault detection circuit is proposed to detect ground faults in a non-grounded circuit by injecting a signal between the ground and an electric path, and measuring the leakage of the signal.
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