Loop control for distribution systems

Details Loop control for distribution systems Loop control for distribution systems

2006-12-26

2006-12-26

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Feeder protection in distribution networks

C361S066000, C361S067000, C361S068000, C361S069000, C307S019000, C307S029000

Reexamination Certificate

active

07154722

ABSTRACT:
The invention contemplates a technique for providing loop control on a faulted overhead or underground loop system, while preventing restored current from being fed or back fed into the fault. In particular, the invention provides a method, device, and system for restoring power to a faulted loop distribution system. The inventive method includes detecting a fault on the loop distribution system, interrupting current on the faulted part of the loop distribution system, isolating the faulted part of the loop distribution system from an unfaulted part of the loop distribution system, restoring current to the unfaulted part of the loop distribution system, and preventing the current from flowing to the faulted part of the loop distribution system. The method may further include providing the current to a load.

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Instruction Book, IB38-755-1, May 1999, ABB Power T&D Company, Inc.

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