Wireless Powerline Sensor
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A Wireless powerline sensor hangs from an
overhead power line An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy across large distances. It consists of one or more uninsulated electrical cables (commonly multiples of three for three-p ...
and sends measurements to a data collection system. Because the
sensor A sensor is a device that produces an output signal for the purpose of sensing a physical phenomenon. In the broadest definition, a sensor is a device, module, machine, or subsystem that detects events or changes in its environment and sends ...
does not contact anything but a single live conductor, no high-voltage isolation is 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. Overhead power line monitoring helps distribution system operators provide reliable service at optimized cost.


Communication

In the photos on the right, an antenna on the sensor transmits data to a communication device attached to a nearby utility pole. The communication device gets power from the 240 volt utility line in a residential neighborhood. The device has two antennas. One antenna collects data from the sensors, and the other antenna forwards the data to the electrical utility control center over cell phone service. In some systems, powerline sensors may transmit information on the high voltage conductor itself rather than by transmission of a radio signal.


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: *Conductor temperature *Ambient temperature *Inclination or the amount of line sagging *Wind movement *Electric fields *Power Generation *Distribution and Consumption of electricity


See also

*
Energy management system An energy management system (EMS) is a system of computer-aided tools used by operators of electric utility grids to monitor, control, and optimize the performance of the generation or transmission system. Also, it can be used in small scale syste ...
* List of wireless sensor nodes *
Sensor node A sensor node, also known as a mote (chiefly in North America), is a node in a sensor network that is capable of performing some processing, gathering sensory information and communicating with other connected nodes in the network. A mote is a no ...
* Supervisory control and data acquisition *
Wireless sensor network Wireless sensor networks (WSNs) refer to networks of spatially dispersed and dedicated sensors that monitor and record the physical conditions of the environment and forward the collected data to a central location. WSNs can measure environmental c ...


References

6. Patel N., Kumar S. (2017),. "Enhanced Clear Channel Assessment for Slotted CSMA/CA in IEEE 802.15. 4", Springer Wireless Personal Communications, Vol. 95, No. 4, pp 4063–4081
https://link.springer.com/article/10.1007/s11277- 017-4042-5
External links
A Wireless Sensors Suite for Smart Grid ApplicationsPower Line Monitoring for Energy Demand Control
Electric power distribution Wireless sensor network Electric power transmission systems {{Powerline-stub