Referenced Items are not available for this document.
Overcurrent relays are widely used for protection of power systems, directional ones for transmission side, and nondirectional ones for distribution side. The fault direction may be forward (between relay and grid), or reverse (between relay and source), the normal power flow being from source to the grid. Known directional overcurrent relays rely on a reference voltage phasor for estimating the direction of the fault, requiring both current and voltage sensors. This increases the cost of the relays, prohibiting the utilization of such relays in the distribution side protection and automation, which is going to be a key part in the smart grid initiative. In this paper, a novel current-only directional detection possibility is highlighted.
Published in:
Sensors Journal, IEEE
(Volume:11
,
Issue:
6
)
Date of Publication: June 2011
- Page(s):
- 1403 - 1404
- ISSN :
- 1530-437X
- INSPEC Accession Number:
- 11960612
- Digital Object Identifier :
- 10.1109/JSEN.2010.2094186
- Product Type:
- Journals & Magazines
- Date of Publication :
- 22 November 2010
- Date of Current Version :
- 19 April 2011
- Issue Date :
- June 2011
- Sponsored by :
- IEEE Sensors Council
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