Non-fault detection for single-phase reclosure of transmission lines based on fault location

2011 ◽  
Author(s):  
Wenquan Shao ◽  
Yanbin Li ◽  
Yili Liu ◽  
Xiaowei Zhang
Keyword(s):  
Fault Detection ◽  
Transmission Lines ◽  
Fault Location ◽  
Single Phase

The Method Analysis of Overhead Transmission Line Single-Phase Grounding Fault Detection and Location

2014 ◽  
Vol 1030-1032 ◽  
pp. 1360-1365
Author(s):  
Yun Hong Dai ◽  
Shi Bin Liang ◽  
Ming Yao Hu ◽  
Ying Na Li ◽  
Zhen Gang Zhao ◽  
...  
Keyword(s):  
Fault Detection ◽  
Transmission Line ◽  
Fault Location ◽  
Single Phase ◽  
Small Current ◽  
Location Method ◽  
Overhead Transmission Line ◽  
Advantages And Disadvantages ◽  
Supply And Distribution ◽  
Space Truss

Small current grounding power system is widely used in overhead transmission line in medium voltage distribution network in China. Because of its long lines, branch, space truss structure is complex, low level of automation, It is easily influenced by outside force and the natural environment, and single-phase grounding failure rate is high. It is an important topic to quickly and accurately detect the location of the fault line, and improve the reliability of power supply and distribution system.This paper has carried on the induction and the comparison of various fault detection and location method of overhead transmission line which is currently used in single phase to ground, and analyzed their advantages and disadvantages,given the corresponding conclusions, provided the reference for finding out the reasonable single-phase earth fault location method or improvement.

scholarly journals Stator inter-turn fault detection of an induction motor using neuro-fuzzy techniques

2010 ◽  
Vol 20 (3) ◽  
pp. 363-376 ◽  
Author(s):  
Rudra Dash ◽  
Bidyadhar Subudhi
Keyword(s):  
Fault Detection ◽  
Induction Motor ◽  
Fault Location ◽  
Single Phase ◽  
Fuzzy Inference ◽  
Induction Machine ◽  
Inference System ◽  
Neuro Fuzzy ◽  
Three Phase ◽  
Fuzzy Techniques

Stator inter-turn fault detection of an induction motor using neuro-fuzzy techniquesMotivated by the superior performances of neural networks and neuro-fuzzy approaches to fault detection of a single phase induction motor, this paper studies the applicability these two approaches for detection of stator inter-turn faults in a three phase induction motor. Firstly, the paper develops an adaptive neural fuzzy inference system (ANFIS) detection strategy and then compares its performance with that of using a multi layer perceptron neural network (MLP NN) applied to stator inter-turn fault detection of a three phase induction motor. The fault location process is based on the monitoring the three phase shifts between the line current and the phase voltage of the induction machine.

scholarly journals Application of Estimation of Model Parameters for Protective Automation of Transmission Lines

2020 ◽  
Author(s):  
◽  
Ivars Zālītis
Keyword(s):  
Communication Networks ◽  
Transmission Lines ◽  
Fault Location ◽  
Single Phase ◽  
Model Parameters ◽  
Distance Protection ◽  
Long Distance ◽  
Fault Parameters ◽  
Automatic Reclosing ◽  
Available Information

Transmission lines are indispensable part of power transmission system, which are highly exposed to fault risk factors of environmental and anthropogenic nature. Therefore, protection and control have to be robust and reliable as possible. Distance protection and some of fault location methods, used today for transmission lines, operate within a limited scope of available information that can result in errors and incorrect operation, especially when faults have high transient resistance. In order to overcome these drawbacks of one-terminal-based distance protection and fault locations methods it is proposed to use a technique of estimation of unknown power system model parameters, solving these problems as an optimisation tasks. The scope of available information is extended by incorporation of all measurements, available from the controlled substation, thus eliminating necessity of long-distance communication networks, and by a separate stage of parameter estimation during the pre-fault regime, which is similar to estimation of fault parameters but operates with a nonlinear model reflecting the influence of governors. The Thesis provides modelling tools for both pre-fault and different fault regimes based on symmetrical component and topological modelling methods to accommodate the increased measurement scope. The proposed method was extensively tested considering two different strategies for selection of measured parameters used by the optimisation. The proposed method and its results is not limited to the fault location or distance protection, as the developed technique was also used to create a new method of an adaptive single-phase automatic reclosing algorithm. The proposed method can be used as a base for creation of robust algorithms and devices for the fault location, distance protection and single-phase automatic reclosing. It can also be modified or directly implemented for different transmission line automation and protection problems. The modelling tools described in the Thesis can be used for a further analysis and development of relay protection and automation.

scholarly journals Research on a New Single-End Fault Location Method for Single-Phase Grounding Faults of Transmission Lines Through Transition Resistance

2021 ◽  
Vol 9 ◽  
Author(s):  
Botong Li ◽  
Lin Shi ◽  
Weijie Wen ◽  
Bin Li ◽  
Xiaolong Chen ◽  
...  
Keyword(s):  
Transmission Lines ◽  
Calculation Method ◽  
Fault Location ◽  
Single Phase ◽  
Necessary Conditions ◽  
Simple Expression ◽  
Location Method ◽  
Terminal System ◽  
The Poor ◽  
Transition Resistance

A single-end fault location method for single-phase nonmetallic grounding faults of transmission lines in a double terminal system is studied and proposed. First, the reason for the poor accuracy of the single-end fault location method in case of single-phase nonmetallic grounding faults is analyzed theoretically, and the necessary conditions for the single-end accurate fault location are put forward. Second, under the necessary conditions of the single-end accurate fault location, according to the topology of fault component networks, the calculation method of the single-end accurate fault location of transmission lines in a double terminal system is studied. Moreover, the influence of line capacitance is considered in this fault location method, and a simple expression for calculating the fault distance is obtained. Finally, the transmission line with a single-phase nonmetallic grounding fault is modeled in PSCAD; therefore, the correctness and the ability against transition resistance of the new single-end fault location method are verified by simulation.

ARCING FAULT DETECTION AND FAULT LOCATION ON HV TRANSMISSION LINES

2005 ◽  
Vol 38 (1) ◽  
pp. 245-249 ◽  
Author(s):  
Zoran Radojević ◽  
Joong-Rin Shin ◽  
Jong-Bae Park ◽  
Chan-Joo Lee
Keyword(s):  
Fault Detection ◽  
Transmission Lines ◽  
Fault Location ◽  
Arcing Fault
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