Reclosing of single tie lines between systems

John Grzybowski Holm (Boston Port of Embarkation; Boston, Mass.): In their paper the authors made a distinct contribution by pointing out the advantages single-pole switching has over the three-pole switching. The practical advantage of single-pole switching is evident particularly when high-speed reclosing breakers are employed in a single-circuit line. The application is by no means limited to this case, and may be used with equal success on multicircuit lines where the reclosing principle is not applied.