Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2013 | Volume: 13 | Issue: 12 | Page No.: 2203-2207
DOI: 10.3923/jas.2013.2203.2207
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail
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

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.
PDF References 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

 
COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

       

       

Curve Bottom