Title :
Multi-zone differential protection for transmission networks
Author :
Kangvansaichol, K. ; Crossley, P.A.
Author_Institution :
Queen´´s Univ. of Belfast, UK
Abstract :
This paper proposes a multi-zone differential protection scheme for transmission networks that provides selective backup protection. It uses a current differential algorithm for the detection and location of the faulted item of plant, employs a broadband communication network to transfer/exchange data and uses a GPS time transfer system to time-tag the data. It not only provides a coordinated system of current differential units, but also tackles the problem of data loss by using local data more efficiently.
Keywords :
Global Positioning System; broadband networks; fault location; power transmission faults; power transmission protection; relay protection; GPS time transfer system; broadband communication network; current differential algorithm; fault detection; fault location; multi-zone differential protection; power transmission faults; power transmission protection; relay protection; selective backup protection; time-tagged data;
Conference_Titel :
Developments in Power System Protection, 2004. Eighth IEE International Conference on
Print_ISBN :
0-86341-385-4
DOI :
10.1049/cp:20040153