First-zone distance relaying algorithm of parallel transmission lines for single-phase to ground faults

2016 ◽  
Vol 80 ◽  
pp. 374-381 ◽  
Author(s):  
Z.Y. Xu ◽  
X. Zhang ◽  
J. He ◽  
A. Wen ◽  
Y.Q. Liu
Keyword(s):  
Transmission Lines ◽  
Single Phase ◽  
Parallel Transmission ◽  
Ground Faults ◽  
Distance Relaying

Ground Distance Algorithm for Single-Phase Grounding Fault of Four-Parallel Transmission Lines Based on Twelve-Sequence Component

2014 ◽  
Vol 945-949 ◽  
pp. 2873-2879
Author(s):  
Zhong An Yu ◽  
Ming Zhao Cheng ◽  
Pei Yu Guo ◽  
Neng Ling Tai
Keyword(s):  
Transmission Lines ◽  
Mutual Coupling ◽  
Single Phase ◽  
High Sensitivity ◽  
Parallel Transmission ◽  
Measured Impedance ◽  
Ground Distance ◽  
Impedance Calculation ◽  
Relationship Of ◽  
The Relationship

The application of traditional distance relay for four-parallel transmission lines is adversely affected by the mutual coupling between the lines. The result will lead to not achieved measured impedance calculation. And it has an effect on the operation of ground protection. In this paper, A new ground distance algorithm is proposed for single-phase grounding fault of four-parallel transmission lines. Based on the case of single-phase grounding fault, The first the relationship between fault point voltage and the voltage at protection installed location is presented by twelve-sequence component method. In the basis, According to the relationship of phase corner between the fault voltage and the fault current to eliminate the effect of fault voltage. The simulation results show that the new scheme has high sensitivity and reliability under different single-phase grounding fault of four-parallel transmission lines.

On-line Adaptive and Intelligent Distance Relaying Scheme for Power Network

2015 ◽  
Vol 16 (5) ◽  
pp. 473-489
Author(s):  
Rahul Dubey ◽  
S. R. Samantaray ◽  
B. K. Panigrahi ◽  
G. V. Venkoparao
Keyword(s):  
Power Systems ◽  
Transmission Lines ◽  
Model Updating ◽  
Test System ◽  
Operating Conditions ◽  
Power Network ◽  
Parallel Transmission ◽  
On Line ◽  
Distance Relaying ◽  
Learning Machine

Abstract The paper presents an on-line sequential extreme learning machine (OS-ELM) based fast and accurate adaptive distance relaying scheme (ADRS) for transmission line protection. The proposed method develops an adaptive relay characteristics suitable to the changes in the physical conditions of the power systems. This can efficiently update the trained model on-line by partial training on the new data to reduce the model updating time whenever a new special case occurs. The effectiveness of the proposed method is validated on simulation platform for test system with two terminal parallel transmission lines with complex mutual coupling. The test results, considering wide variations in operating conditions of the faulted power network, indicate that the proposed adaptive relay setting provides significant improvement in the relay performance.

scholarly journals Reproduction Methodology for Single Phase-to-Ground Faults in Overhead Transmission Lines

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 17403-17413 ◽  
Author(s):  
Hanqing Liang ◽  
Yadong Liu ◽  
Gehao Sheng ◽  
Xiuchen Jiang
Keyword(s):  
Transmission Lines ◽  
Single Phase ◽  
Overhead Transmission Lines ◽  
Ground Faults
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