论文信息 - An improved method for the digital protection of high voltage transmission lines

An improved method for the digital protection of high voltage transmission lines

This paper explores the accuracy of the digital methods for protection of high voltage transmission lines under transient fault condition on a long line and describes an improved method for future digital protection schemes. With this method it is possible to calculate R and L of high voltage transmission lines so that any number of harmonics on the current and voltage waveforms can be eliminated and it is shown to be suitable for distance protection during the first cycle of fault occurrence.

A.M. Ranjbar | B.J. Cory

[1] E. A. Udren,et al. High-Speed Distance Relaying Using a Digital Computer II-Test Results , 1972 .

[2] B. J. Mann,et al. Relaying a Three Phase Transmission Line with a Digital Computer , 1971 .

[3] I. F. Morrison,et al. Digital Calculation of Impedance for Transmission Line Protection , 1971 .

[4] W. A. Lewis,et al. Fundamental Basis for Distance Relaying on 3-Phase Systems , 1947, Transactions of the American Institute of Electrical Engineers.

[5] O. P. Malik,et al. Digital simulation of a synchronous generator in direct-phase quantities , 1971 .

[6] A. Wright,et al. Some factors affecting the accuracy of distance-type protective equipment under earth-fault conditions , 1963 .

[7] W. D. Humpage,et al. Measuring accuracy of distance protection with particular reference to earth-fault conditions on 400kv looped-circuit interconnections , 1970 .

[8] Robert Uram,et al. Mathematical Analysis and Solution of Transmission-Line Transients I-Theory , 1964 .