Effect Evaluation of Fault Resistance on the Operating Behavior of a Distance Relay

K. H. Le, P. H. Vu

Abstract


This paper presents an application of a certain distance protection relay with a quadrilateral characteristic approach for the protection of the 110kV Duy Xuyen - Thang Binh transmission line in Vietnam using measured data from one terminal line. We propose the building process of a Matlab Simulink model for this relay that combines fault detection and classification block, apparent impedance calculation block for all types of faults and a trip logic block of three zone protection coordination. The proposed relay model is further tested using various fault scenarios on the transmission line. It is important to assess what happened, the actual conditions, the causes of mal-operation etc. Detailed explanation and results indicate that the proposed model behavior will help users to perform tests which correctly simulate real-world conditions besides that it properly interprets test results and troubleshoot distance function problems when results are not as expected.


Keywords


transmission line; distance protection relay; quadrilateral characteristic; logic trip; Matlab/Simulink

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References


O. Muhayimana, Distance Protection for Parallel and Double-Circuit HV Lines, MSc Thesis, Brno University Of Technology, 2016

V. H. Makwana, B. R. Bhalja, Transmission Line Protection using digital technology, Springer, 2016

T. Saengsuwan, “Modelling of distance relays in EMTP”, IPST'99 International Conference on Power Systems Transients, Budapest Hungary, pp. 213-217, June 20-24, 1999

L. K. Hung, N. H. Viet, V. P. Huan, “The effect of fault resistance on the performance of distance relay protection”, The 2011 International Symposium on Electrical-Electronics Engineering, Ho Chi Minh City, Vietnam, pp. 238-244, November 8-9, 2011

Central Region Load Dispatch Center, Setting calculation of distance protection relay Siemens 7SA522 at 171 overhead line of Duy Xuyen Substation, Decision No A3-03-2015/DUX110, Siemens, 07-07-2015

Siemens, “Siemens Siprotec 4 Distance Protection 7SA522 user manual”, Siemens, 2011

G. Ziegler, Numerical Distance Protection: Principles and Applications, John Wiley & Sons, 2011




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