Wireless powerline sensor

Wireless overhead power line sensors hanging from each of the three phases of a 4160 volt powerline in a residential neighborhood, in Palo Alto, California
Three powerline sensors hanging on conductors 2 meters to the right of a power pole with a distribution transformer and communication network node
Three wireless overhead powerline sensors hanging from the phases of a 4160 volt powerline and network node attached to a power pole. The photo also shows an unrelated distribution transformer, which reduces 4160V to 240/120V.
Closeup of overhead powerline sensor hanging from one phase of a 4160 volt powerline

A Wireless powerline sensor hangs from an overhead power line and sends measurements to a data collection system. Because the sensor does not contact anything but a single live conductor, no additional high-voltage isolation devices are needed. The sensor, installed simply by clamping it around a conductor, powers itself from energy scavenged from electrical or magnetic fields surrounding the conductor being measured.[1] Overhead power line monitoring helps distribution system operators provide reliable service at optimized cost.[2][3]

Some powerline sensors may transmit information on the high voltage conductor itself rather than by transmission of a radio signal.[4][5]

Measurements

The primary purpose of a powerline sensor is to measure current, however, some sensors can either directly measure or derive other data such as:

See also

References

  1. ↑ Yang,, Yi (April 26, 2011), Power Line Sensor Networks for Enhancing Power Line Reliability and Utilization (PDF), Georgia Institute of Technology
  2. ↑ Zhao, X.; Keutel, T.; Baldauf, M.; Kanoun, O. (2013). "Energy harvesting for a wireless-monitoring system of overhead high-voltage power lines". IET Generation, Transmission & Distribution 7 (2): 101–107. doi:10.1049/iet-gtd.2012.0152.
  3. ↑ Yi Yang; Divan, D.; Harley, R. G.; Habetler, T. G. (2006). "Power line sensornet - a new concept for power grid monitoring". 2006 IEEE Power Engineering Society General Meeting. pp. 8 pp. doi:10.1109/PES.2006.1709566. ISBN 1-4244-0493-2.
  4. ↑ Casaca, A. ; Pereira, P. ; Buttyan, L. ; Goncalves, J. ; Fortunato, C. A (June 25–27, 2012). Wireless Sensor and Actuator Network for improving the electrical power grid dependability. Next Generation Internet (NGI), 2012 8th EURO-NGI Conference. Karlskrona Sweden: IEEE. pp. 71–78. doi:10.1109/NGI.2012.6252167.
  5. ↑ Cigdem E., Merve S.,Vehbi Cagri G., Etimad F., Ian F. "A. Lifetime analysis of wireless sensor nodes in different smart grid environments" 20 (7). Wireless Networks: 2053–2062. doi:10.1007/s11276-014-0723-0.

External links


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