Transmission Line Faults in Power System and the Different Algorithms for Identification, Classification and Localization: A Brief Review of Methods

Abstract

Transmission lines are one of the most widely distributed engineering systems meant for transmitting bulk amount of power from one corner of a country to the farthest most in the other directions. The expansion of the lines over different terrains and geographic locations makes these most vulnerable to different kinds of atmospheric calamities which more often develops faults in line. It is imperative to remove the faulty line at the earliest to restrict undue outflow of bulk power through the faulted point as well as restore system stability earliest to resume normal power flow operation. Here lays the importance of having a robust fault identification, classification and localization algorithm which would be successfully able to drive as well as actuate the digital relaying system. Researchers have worked out several methodologies in developing improved power system protection algorithms which would be able to serve to eliminate faults immediately on occurrence of the same. A brief yet exhaustive review has been presented in this article including the several methodologies adopted by numerous researchers for developing effective fault diagnosis schemes, mentioning about the highlights as well as the shortcoming of each of the methods. This compact and effective survey of literature works would help researchers to take up appropriate techniques for different purposes of transmission line fault analysis.

Fault detection method for substation in smart power grid: a random forest approach

“…Transmission line fault [15] refers to the abnormal conditions or malfunctions that occur during the operations of highvoltage transmission lines, which could lead to disruptions or interruptions in the power transmissions. This fault can have a significant impact on the power system, equipment, and power supply.…”

A Robust Fault Diagnosis Scheme using Deep Learning for High Voltage Transmission Line

“…The effects of electrical faults are massive. Such as, when a fault occurs, the overcurrent flow is forced into a low impedance channel [16]. As a result, a large amount of current is pulled from the flow which causes disconnecting relays and insulation failure among the devices in transmission and distribution system.…”

Experimental study on arc discharge of detection robot in UHV line

“…China's power system has been operating for a long time, so a large number of aging insulators make the detection task onerous. If the insulator fails, the insulation resistance will drop or even become a zero value resistance, resulting in line short circuit or grounding fault, and ultimately affecting the normal operation of the power system [1][2] .…”