Control method and apparatus for power distribution network

Details Control method and apparatus for power distribution network Control method and apparatus for power distribution network

1996-11-29

1998-07-21

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Feeder protection in distribution networks

361 64, 361 66, 361115, H02H 300

Patent

active

057842370

ABSTRACT:
A control method and apparatus is provided for isolating network faults via the communication between neighboring network locations and the control of sectionalizing switches at the network locations. Control apparatus is provided at particular network locations which responds to detected fault conditions and communicates the detected fault condition to the control apparatus at neighboring network locations. The appropriate control apparatus, in response to the information received from neighboring network locations, opens a sectionalizing switch to isolate the fault condition. In one particular arrangement, each control apparatus that detects a fault condition sends a signal to appropriate source-side, neighboring control apparatus to inhibit the source-side control apparatus from opening their respective sectionalizing switches. Further, any control apparatus that detected a fault condition and that does not receive an inhibiting signal, controls its sectionalizing switch to open. Inn a specific arrangement, the control apparatus that opens its sectionalizing switch also sends a signal to predetermined neighboring load-side control apparatus to open their sectionalizing switches, so as to prevent feeding into a fault condition after network restoration via a different path or source.

REFERENCES:
patent: 5341268 (1994-08-01), Ishiguro

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