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http://dx.doi.org/10.5370/KIEE.2018.67.9.1141

Considerations Review on Setting of Distance Relay using Technical Standards  

Moon, Su-Cheol (Korea Institute of Nuclear Safety)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.67, no.9, 2018 , pp. 1141-1145 More about this Journal
Abstract
Generally, in nuclear plants, distance relay (21R) has adapting to protect and to operate main protective of transmission lines and backup protective of main generator. Operation of 21R was required and based on exactly accurate calculation and criteria. But presently method of 21R setting has applied according to protection devices operation guide of KPX, excepting IEEE and ISA standards, which have a difference review directions, consider parameters and devices, also consideration factors were affected to relay operations by uncertain guides. therefore this paper proposed new protection relay setting method and unvague criteria from IEEE 741 and ANSI/ISA 67.04.01, and reviewed a different results through numerical calculation results for methods and criteria including previous and established 21r setting by IEEE, ANSI/ISA Technical standards.
Keywords
Distance relay; Tolerance factor; Dependant; Independent;
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  • Reference
1 IEEE Std. 741-2007, IEEE Standard Criteria for the Protection of Class 1E Power Systems and Equipment in Nuclear Power Generating Stations. p. 4.
2 IEEE C37.113(IEEE Guide for Protective Relay Applications to Transmission Lines, 5.1.3.1 Step distance schemes).
3 ANSI/ISA-67.04.01-2000, Setpoints for Nuclear Safety-Related Instrumentation.
4 The Transactions of the Korean Institute of Electrical Engineers, Review on tolerance factors for 1E UVR setting at NPPs, pp. 367-372, Moon Su-Cheol, Kim Kern-Joong, 2011.
5 Korea Power Exchange, Protection Devices Operation Guide, p. 4, 2003.
6 JEET, A Probabilistic Approach to the Protection Capability Evaluation of Distance Relay in Transmission Systems, Wen-Hao Zhang, Seung-Jae Lee and Myeon-Song Choi, Journal of Electrical Engineering & Technology, Vol. 5, No. 3, pp. 407-414, 2010.   DOI