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Reclosers can detect this as an overcurrent or earth fault (depending on the asymmetry of the fault). Lightning surges pass very quickly (reduce in 50ms), so the first reclose can be configured to both trip and reclose quickly. This first reclose allows for interruption of the arcing caused by lightning, but restores the power quickly.
The initial allocations were excessively high and well beyond what was needed to account or allow for recovery from the "recessionary" economic conditions at the time RECLAIM was initiated. As indicated elsewhere, the initial allocations were roughly 40-60 percent above actual emissions during the first two years (1994-1995).
The overcurrent trip would open the breaker and start a timer on the reclosing relay. Once the first setpoint was reached (assuming more than one reclose cycle), an output which is connected to that breaker's close coil would then be energized. If the fault persisted upon reclose, then the overcurrent relay would trip again.
Are you going to be away from your email for a while? Setting up an automatic response will let your contacts know why you're away and when to expect you back.
The U.S. Department of Transportation said the Federal Highway Administration has "terminated approval" of New York City's congestion pricing plan, the first of its kind in the nation, which went ...
NEW YORK (AP) — Elon Musk’s cost-cutting team is eliminating jobs at the vehicle safety agency that oversees Tesla and has launched investigations into deadly crashes involving his company's cars.
CBS is once again testing out new ingredients for one of its oldest, most recognizable programs, “The CBS Evening News.” On Monday, CBS News jettisoned many of the signature elements of the ...
Reclaim Australia: Reduce Immigration; Reclaim Australia, a far-right political party; Reclaim the Streets, anti-car/pro-public-spaces movement; Reclaim the Dream commemorative march, in the US; Reclaim The Records, a movement to increase availability of public records in the US "Reclaiming my time", a phrase used by Maxine Waters