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# T-Shaped Transmission Line Fault Location Based on Phase-Angle Jump Checking

Jia’an Xie1,*, Yurong Wang2, Guobin Jin3, Mucheng Wu1

1 Foshan Power Supply Bureau, Guangdong Power Grid Co., Ltd., Foshan, 528000, China
2 School of Electrical Engineering, Southeast University, Nanjing, 210018, China
3 School of Electrical Engineering, Northeast Electric Power University, Jilin, 132012, China

* Corresponding Author: Jia’an Xie. Email:

Energy Engineering 2022, 119(5), 1797-1809. https://doi.org/10.32604/ee.2022.020344

## Abstract

In order to effectively solve the dead-zone and low-precision of T-shaped transmission line fault location, a new T-shaped transmission line fault location algorithm based on phase-angle jump checking is proposed in this paper. Firstly, the 3-terminal synchronous fundamental positive sequence voltage and current phasors are extracted and substituted into the fault branch distance function to realize the selection of fault branch when the fault occurs; Secondly, use the condition of the fundamental positive sequence voltage phasor at the fault point is equal to calculate all roots (including real root and virtual roots); Finally, the phase-angle jump check function is used for checking calculation, and then the only real root can be determined as the actual fault distance, thereby achieving the purpose of high-precision fault location. MATLAB simulation results show that the proposed new algorithm is feasible and effective with high fault location accuracy and good versatility.

## Cite This Article

APA Style
Xie, J., Wang, Y., Jin, G., Wu, M. (2022). T-shaped transmission line fault location based on phase-angle jump checking. Energy Engineering, 119(5), 1797-1809. https://doi.org/10.32604/ee.2022.020344
Vancouver Style
Xie J, Wang Y, Jin G, Wu M. T-shaped transmission line fault location based on phase-angle jump checking. Energ Eng. 2022;119(5):1797-1809 https://doi.org/10.32604/ee.2022.020344
IEEE Style
J. Xie, Y. Wang, G. Jin, and M. Wu "T-Shaped Transmission Line Fault Location Based on Phase-Angle Jump Checking," Energ. Eng., vol. 119, no. 5, pp. 1797-1809. 2022. https://doi.org/10.32604/ee.2022.020344

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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