Home Tags POWERGRID_INTERNATIONAL Volume 16 Issue 9
POWERGRID_INTERNATIONAL Volume 16 Issue 9
The foundations for most of the U.S.' current urban infrastructures were established in the last two centuries and need significant maintenance and upgrades.
Omicron has developed test cables to simplify testing of distribution reclosers and sectionalizers, including their controllers and switches, for use with the CMC 356/256 test sets. Each recloser and sectionalizer contains a switch and a controller connected via a control cable provided by the device manufacturer.
Microgrid systems attract interest due to enhanced reliability, and self-reliance. From technical and economic perspectives, microgrid development poses challenges and opportunities. Integrating system management makes it possible to realize smart operation—to maximize system efficiency and security while lowering operational costs.
Over several decades, electric utilities have installed hundreds of thousands of devices that monitor the vital signs of their transmission and distribution systems. The proliferation of detailed information about voltage, current and other system parameters can tell utilities a lot about the stability and efficiency of their transmission and distribution networks.
For more than two decades, electric power system automation has been undergoing a slow but steady transformation. In the 1980s and 1990s, the most significant issues were rooted in technology changes.
It is a time of great change and transition for the electric utilities industry—an evolving regulatory environment, a push toward renewable energy sources, the advent of smart meter and grid technologies, and the potential of competition drive uncertainty.
As of spring, IDC Energy Insights estimates more than 21 million meters are installed at the top 80 U.S. utilities. Thirty-one of these utilities have plans for full deployment, which will bring the number of smart meters to more than 50 million during the next few years.
Distribution system operators once lacked visibility of the electrical conditions on distribution feeders. At most, operators could monitor conditions at the substation end of the feeder. This was not necessarily bad because distribution systems were fairly predictable in loading and voltage levels.
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