Utilities have been looking to improve performance metrics as a means to meet regulations since the late 1990s. One of the most reliable ways to do so is to quickly determine the location of faults, isolate them, and automatically restore the healthy feeders promptly. G&W Electric has been installing Fault Detection, Isolation and Restoration (FDIR) systems for many years.
The main benefits of FDIR schemes include:
Shorter outage durations
Fewer sustained outages
Improved performance indices
Enhanced operational efficiencies
Improved service quality
G&W’s Lazer automation systems can isolate faults with the closest upstream device to allow the fewest number of circuits to see the outage. Our pre-configured solutions allow you a choice of fully distributed intelligence and peer-to-peer communications, local controllers built directly into the switches, or a combination of both. This flexibility coupled with standard communication interfaces and open protocols offer solutions that can meet almost any automation need including smart grid applications. Like all of our solutions, FDIR systems are fully tested at our facility before ever being shipped.
Closed Loops – the fastest tripping option with fault isolation in as little as 6 cycles. Two sources are run in parallel with all switches in the loop closed. Closed loop solutions are excellent for Universities, military bases, or other locations that cannot afford to wait seconds for their power to return.
Open Loops – allow for fault isolation and restoration in 30 cycles to several seconds. Two sources are connected in a loop with one open point. Open loop solutions are excellent for most commercial and residential circuits, some industrial customers, and municipal customers.
Multi-Source Network – indicates greater than two sources feeding a circuit. These applications frequently involve more advanced algorithms like load flow and source prioritization. Multi-source networks solutions are excellent for local utility circuits, some campus environments, downtown circuits, and rural circuits.
Contact your local G&W representative to receive a complete review of your current project requirements and recommended G&W solution. Please click on one of the tabs below to review some of our customer installations.