PowerLink uses the high-voltage line between transformer substations as a communications path for data, protection signals and voice. This technology, which has been tried and tested over decades and adapted to the latest standards, has two main application areas:
as a communications link between substations where a fiber-optic connection does not exist or would not be economically viable, and
as a backup system for transmitting protection signals parallel to an installed fiber-optic link.
Thanks to the continuous development of this technology, it remains as important as ever. Over long distances with relatively low data volumes, PLC is still hard to beat interms of cost-effectiveness.
PowerLink provides the highest communications standards for power network protection. Its smooth integration into other types of communications technology like fiber-optic and satellite links opens the door to a variety of new features and functions. With its ability to switch from analog to digital transmission, it can work with both transmission modes at the same time.
Cost-effective for small to medium data volumes overlong distances
Use of utility-owned resources (power lines)
Highest reliability (for example, for protection signaling)
Can be used in effective combination with broadband technologies for highest availability
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