Every moment, system operators watch light-studded maps for signs of overloaded lines or other trouble.
He walked past her toward the kitchen and she tried calling her doctor, then 911, then the nearest hospital, but all she heard was the drone of overloaded lines.
Soon a utility that serves southern Ohio, with its overloaded lines close to burning up, sealed itself off, creating in very real terms an electrical barrier between the southern part of the state and the northern.
As this happens, 12,000 of Boeing's non-defence employees about 10% of the total will go, one insider says.To make life more complicated for Mr Woodard, the worst may be yet to come for the overloaded lines making narrow-bodied 737 aircraft.
A graph-partitioning algorithm is developed to identify the subnetworks for which the overloaded lines act as power gates.
This multi-objective decision making is based on the sensitivities of the overloaded lines with respect to power shifts and on the time required to complete them.
Inter-subnetwork power shifts by generation rescheduling and, possibly, load shedding are applied to relieve the overloaded lines which bridge these subnetworks.
Electricity market forces and renewable energy integration promote the exchange of large power volumes over long distances, push the grid to operate closer to its limits, and make it vulnerable to cascading outages, e.g., triggered by disconnections of overloaded lines.
If any power flow constraint is violated, Cut 1 will eliminate the overloaded lines by enforcing limits on the output of relevant generation and EH units, which are added to the master problem to recalculate the new commitment.
All other servers are considered to be non-overloaded (line 6).
Overloaded bookshelves line the living-room and bedroom walls, and stacks of books on the floors make navigation a challenge.
