New method of fault location on double-circuit two-terminal transmission lines

Abstract A new method to locate faults on double-circuit transmission lines is described in this paper. This method only uses the fundamental components (50/60 Hz) of fault and prefault currents, measured at one of the ends of the line. From these measured values a function is established from which the point at which a fault occurred is determined. The definition of a new concept called the ‘distance factor’ will allow a method to be developed which is independent of fault resistance, type of fault, mutual coupling between the two circuits and initial prefault conditions. The accuracy of this method has been assessed by using a fault simulation software program. In the first stage the accuracy of the method was determined on the basis of accurate input data. In the second stage the sensitivity of the method was analyzed from errors in the input data.

[1]  Adly A. Girgis.  A New Kalman Filtering Based Digital Distance Relay , 1982 .

[2]  D. L. Waikar,et al.  Symmetrical component based improved fault impedance estimation method for digital distance protection Part II. Computational aspects and validation , 1993 .

[3]  T. Hlibka,et al.  Fundamental basis for distance relaying with symmetrical components , 1977, IEEE Transactions on Power Apparatus and Systems.

[4]  Omar A.S. Youssef.  A new technique for location of transmission line faults using single-terminal voltage and current data , 1992 .

[5]  Om P. Malik,et al.  A digital protection technique for parallel transmission lines using a single relay at each end , 1992 .

[6]  T. Takagi,et al.  Development of a New Type Fault Locator Using the One-Terminal Voltage and Current Data , 1982, IEEE Power Engineering Review.

[7]  M. Abe,et al.  Development of a new fault location algorithm for multi-terminal two parallel transmission lines , 1991 .

[8]  Adly Girgis,et al.  Application of Kalman Filtering in Computer Relaying , 1981, IEEE Transactions on Power Apparatus and Systems.

[9]  Gill Richards,et al.  An Accurate Fault Location Estimator for Transmission Lines , 1982, IEEE Transactions on Power Apparatus and Systems.

[10]  M. Saha,et al.  An Accurate Fault Locator With Compensation For Apparent Reactance In The Fault Resistance Resulting From Remore-End Infeed , 1985, IEEE Transactions on Power Apparatus and Systems.

[11]  A. O. Ibe,et al.  A Traveling Wave-Based Fault Locator for Two-and Three-Terminal Networks , 1986, IEEE Power Engineering Review.

[12]  Adly A. Girgis,et al.  Application of adaptive Kalman filtering in fault classification, distance protection, and fault location using microprocessors , 1988 .

[13]  A. O. Ibe,et al.  Fault-location algorithm for multiphase power lines , 1987 .

[14]  D. L. Waikar,et al.  Symmetrical component based improved fault impedance estimation method for digital distance protection Part I. Design aspects , 1993 .

[15]  D. J. Lawrence,et al.  Transmission line fault location using digital fault recorders , 1988 .