Design and Implementation of a Teleprotection System with Digital and Analog Interfaces
Journal of Electrical and Electronic Engineering
Volume 3, Issue 2-1, March 2015, Pages: 88-91
Received: Jan. 16, 2015;
Accepted: Jan. 19, 2015;
Published: Feb. 12, 2015
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Vahid Hamiyaty Vaghef, Communication Department, Niroo Research Institute, Tehran, Iran
Maryam Shabro, Communication Department, Niroo Research Institute, Tehran, Iran
Behnam Gholamrezazadeh Family, Communication Department, Niroo Research Institute, Tehran, Iran
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Safe and un-interrupted power transmission requires a widespread use of control and protection equipment to avoid fault propagation in power network. Protection systems have been used to detect faults and block them to strike the high voltage lines. The teleprotection system continuously sends commands to remote substation in case of fault identification. Thus, the reliability and transmission time are vital issues to avoid intolerable errors. Teleprotection systems are interface between protection system and communication equipment. This paper proposes a digital teleprotection system to connect to digital communication network. The system is based on line interfaces and in accordance to ITU-T G.703 standard (64kbps and 2Mbps rates). Furthermore, the system benefits from the analog interface and direct analog voice band or optical fibers connection using eight independent commands. The system supports 8 channels simultaneously while its transmission time is 4ms at most.
Protection, Relay Interface, Communication Interface, Type Test, Dependability and Security
To cite this article
Vahid Hamiyaty Vaghef,
Behnam Gholamrezazadeh Family,
Design and Implementation of a Teleprotection System with Digital and Analog Interfaces, Journal of Electrical and Electronic Engineering. Special Issue: Research and Practices in Electrical and Electronic Engineering in Developing Countries.
Vol. 3, No. 2-1,
2015, pp. 88-91.
Cigre, Working Group B 5.19 of Cigre, "Protection relay coordination", October 2010.
NRI, Communication research group, final report of “Design and implementation of a industrial Teleprotection system for digital communication networks”, document code: JCMPN02/E, 2012.
IEC60834-1, "Teleprotection equipment of power systems, performance and testing, Part 1: command systems", Second Edition, IEC, 1999.
M. Shabro, V. H. Vaghef, and B. Gh. Family, "Design and Implementation a Digital Teleprotection System", 7thSASTech 2013, Iran, Bandar-Abbas. 7-8 March, 2013.