Fault Location Methods for Overhead Lines

Stringfield, T. W.; Marihart, D. J.; Stevens, R. F.

doi:10.1109/aieepas.1957.4499601

Cited by 58 publications

(22 citation statements)

References 1 publication

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“…The fault location problem has been extensively studied in the literature since 1950s [1] and numerous methods have been proposed. First, the subject was studied for transmission networks because of the importance of the fault location function in power systems operation and the difficulty of locating faults in meshed networks.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Influence of Losses on the Performance of the Electromagnetic Time Reversal Fault Location Method

Razzaghi

Lugrin

Rachidi

et al. 2017

IEEE Trans. Power Delivery

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Abstract-Electromagnetic time reversal (EMTR) has beenshown to be an efficient method for locating faults in AC and DC power grids. In the available literature, the back-propagation medium has been considered to have identical losses as the directtime medium. However, the telegrapher's equations describing the travelling wave propagation are time-reversal invariant if and only if inverted losses are considered in the back propagation phase. This paper presents an analysis of the impact of losses on the performance of the EMTR-based fault location method for power networks. In this respect, three back-propagation models are proposed, analyzed and compared. It is shown that a lossy back-propagation model, for which the wave equations are not rigorously time-reversal invariant, results in accurate fault locations. Finally, an EMTR fault location system based on the lossy back-propagation model and a fast electromagnetic transient simulation platform is developed and its performances validated.

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Section: Introductionmentioning

confidence: 99%

Assessment of the Influence of Losses on the Performance of the Electromagnetic Time Reversal Fault Location Method

Razzaghi

Lugrin

Rachidi

et al. 2017

IEEE Trans. Power Delivery

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“…In order to facilitate fault search and line repair, fault locator devices have been developed since the 1950s [1]. A typical transmission line equipped with a FL is presented in Fig.…”

Section: Introductionmentioning

confidence: 99%

Impedance-based ground fault location for transmission lines

Sun¹,

Sood²

2010

Ccece 2010

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Impedance-based fault location methods are widely used due to their simple mode of operation and relatively low cost. However, their performance suffers from factors such as fault impedance, pre-fault load current, and remote infeed. Although significant improvements have been made by compensating these effects, the presence of unreliable zero-sequence current always presents a challenge to those conventional methods. The algorithm proposed in this paper for a one-terminal fault location method using a new superposition current in conjunction with a reactance method offers significant improvement. Different types of line modeling are represented to show their effects on the fault location estimation. Furthermore, comparative test results of the proposed one-terminal method with conventional twoterminal methods are also presented. The simulations are performed in EMTP-RV and the signal processing is conducted by using MATLAB.Index Terms-Fault Locator, superposition current, fault location estimation error, EMTP-RV.

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“…This technique is attractive for its simplicity and low cost, but can not be relied upon for very accurate location under all possible fault conditions [9] [11].…”

Section: Introductionmentioning

confidence: 99%

“…One is the reflectometry technique [1][8][9] [11], which measures the time difference between the arrival of the first surge and its subsequent reflections at one end of the line. It requires no information from the far end of the line and therefore needs no communication link between them.…”

Section: Introductionmentioning

confidence: 99%

The application of satellite time references to HVDC fault location

Dewe

Sankar

Arrillaga

1993

IEEE Trans. Power Delivery

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An HVdc fault location scheme is described which relies on very precise detection of the time of arrival of fault created surges at both ends of the line. Such detection is achieved by a very accurate data acquisition and processing system combined with the time reference signals provided by a global positioning system receiver. Extensive digital simulation is carried out to determine the voltage and current waveforms, to identify the main sources of error and suggest possible compensation techniques.

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Fault Location Methods for Overhead Lines

Cited by 58 publications

References 1 publication

Assessment of the Influence of Losses on the Performance of the Electromagnetic Time Reversal Fault Location Method

Assessment of the Influence of Losses on the Performance of the Electromagnetic Time Reversal Fault Location Method

Impedance-based ground fault location for transmission lines

The application of satellite time references to HVDC fault location

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