Systems, methods and apparatus for protecting power distribution feeder systems

摘要

A power distribution feeder system includes a plurality of power sources, a plurality of switching components coupled to the power sources by a plurality of line sections, and an IED coupled to each switching component and configured to monitor any line section coupled to the switching component, each IED containing protection logic configured to detect a jump in current on a faulted line section, communicate the jump in current to other IEDs coupled to the faulted line section, receive information from the other IEDs coupled to the faulted line section regarding any jump in current detected by the other IEDs, employ the received information from the other IEDs to confirm a fault in the faulted line section, and issue a trip command to isolate the faulted line section based on the current jump detected by the IED and current jump information received from other IEDs coupled to the line section.

主权项

1. A power distribution feeder system including:
a plurality of power sources; a plurality of switching components coupled to the power sources by a plurality of line sections; an intelligent electronic device (IED) coupled to each switching component and configured to monitor any line section coupled to the switching component, each IED containing protection logic configured to:
detect a jump in current on a faulted line section;communicate the jump in current to other IEDs coupled to the faulted line section;receive information from the other IEDs coupled to the faulted line section regarding any jump in current detected by the other IEDs;employ the received information from the other IEDs to confirm a fault in the faulted line section; andissue a trip command to isolate the faulted line section based on the current jump detected by the IED and current jump information received from other IEDs coupled to the line section.