Subscribe Now Subscribe Today
Research Article
 

High-Speed and High-Resistance-Tolerance Fault Component Ground Distance Relay for UHV Double-Circuit Transmission Line



DI Jian, HOU Yang-Jun and Chen Tian-Ying
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail
ABSTRACT

UHV AC double-circuit transmission line is of its distinct characteristics of distributed parameters, as a result of large distributed capacitance and long transmission distance. The traditional distance protection has inherent defect when used in UHV double-circuit transmission. According to the distributed parameter model and six sequence component, This paper analyzes and deduces a novel calculation formula of single phase ground distance protection for parallel transmission lines and uses it in fault component distance relay. To improve its resistance tolerance and prevent the relay from “in-phase” problem caused by high fault resistance, we propose a novel type relay with high-speed and high-resistance-tolerance characteristics and its concrete implementation scheme. The scheme can ensure operating speed for low-resistance faults near the start of the protected zone and correct action for high-resistance faults. Simulation has confirmed that the protection scheme is security with high sensitivity, high speed and great capability against fault resistance.

Services
Related Articles in ASCI
Similar Articles in this Journal
Search in Google Scholar
View Citation
Report Citation

 
  How to cite this article:

DI Jian, HOU Yang-Jun and Chen Tian-Ying, 2013. High-Speed and High-Resistance-Tolerance Fault Component Ground Distance Relay for UHV Double-Circuit Transmission Line. Journal of Applied Sciences, 13: 2203-2207.

DOI: 10.3923/jas.2013.2203.2207

URL: https://scialert.net/abstract/?doi=jas.2013.2203.2207
 

REFERENCES
Barabanov, Y., 2001. Protection relays of 750kv transmission line in Russia. (He Jiali, Trans In: Report of Academic Workshop of Beijing Society of Electrical Engineering). Beijing.

He, J.L., Y.L. Li and B. Li, 2002. Relay protection for UHV transmission lines: Part two disposition of relay protection. Automation Electric Power Syst., 26: 1-6.

Li, B., J.L. He and H.P. Yang, 2007. Improvement of distance protection algorithm of UHV long transmission line. Automation Electric Power Syst., 31: 43-46.

Liu, S.M., X.N. Lin and C.M. Yang, 2002. Unified expression of fault-component distance relay. Power Syst. Technol., 26: 23-27.
Direct Link  |  

Liu, Z.Y., 2005. UHV Power Grid. Economic Press of China, Beijing, China, pp: 23-100, (In Chinese).

Sui, F.H., T. Chen and G. Li, 1995. On fault component distance relays. Automation Electric Power Syst., 19: 34-37, (In Chinese).

Suonan, J.L., Y.P. Wu and G.B. Song, 2003. Accurate fault location based on distributed parallel transmission line. Proc. CSEE, 23: 39-43, (In Chinese).

Xu, Z.Y., 2002. New Distance Protection of Transmission Line. China Water Conservancy and Hydroppower Press, Beijing, China, pp: 4-78, (In Chinese).

©  2020 Science Alert. All Rights Reserved