High impedance fault (HIF) protection of the transmission line

1997 ◽  
Author(s):  
Chen Deshu
Keyword(s):  
Transmission Line ◽  
High Impedance ◽  
High Impedance Fault

scholarly journals Analytical Model for High Impedance Fault Analysis in Transmission Lines

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
S. Maximov ◽  
V. Torres ◽  
H. F. Ruiz ◽  
J. L. Guardado
Keyword(s):  
Transmission Line ◽  
Analytical Model ◽  
Transmission Lines ◽  
Fire Hazard ◽  
Human Life ◽  
Electric Arc ◽  
Fault Analysis ◽  
Arc Model ◽  
High Impedance ◽  
High Impedance Fault

A high impedance fault (HIF) normally occurs when an overhead power line physically breaks and falls to the ground. Such faults are difficult to detect because they often draw small currents which cannot be detected by conventional overcurrent protection. Furthermore, an electric arc accompanies HIFs, resulting in fire hazard, damage to electrical devices, and risk with human life. This paper presents an analytical model to analyze the interaction between the electric arc associated to HIFs and a transmission line. A joint analytical solution to the wave equation for a transmission line and a nonlinear equation for the arc model is presented. The analytical model is validated by means of comparisons between measured and calculated results. Several cases of study are presented which support the foundation and accuracy of the proposed model.

High impedance fault modeling and location for transmission line✰

2021 ◽  
Vol 196 ◽  
pp. 107202
Author(s):  
Jose Doria-García ◽  
Cesar Orozco-Henao ◽  
Roberto Leborgne ◽  
Oscar Danilo Montoya ◽  
Walter Gil-González
Keyword(s):  
Transmission Line ◽  
Fault Modeling ◽  
High Impedance ◽  
High Impedance Fault
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