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An integrated protection scheme for power line systems

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5 Author(s)
Bo, Z.Q. ; AREVA T&D - Autom., London ; Klimke, A. ; He, J.H. ; Dong, X.Z.
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This paper presents an integrated relay and its associated protection scheme for power line systems. The concept of integrated protection is firstly introduced, in which a centralized protection system or relay provides the protection for multiple power plants or a substation. A novel integrated protection relay based on a combination of a number of protection principles is described. In the proposed scheme, the specially designed protection relays are installed at each substation of a network and are responsible for the protection of every line section connected to the substation busbar. The combined algorithms with multiple settings are implemented into the relay to cover all the protected line sections. Simulation studies show that the proposed protection scheme is able to produce desirable performance and may offer many advantages over the existing one and great potential for future applications.

Published in:

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Date of Conference:

20-24 July 2008

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