Systems and methods for fault locating in wye-grounded utility systems and other utility systems
AssigneePPL Services Corporation
InventorsNate Simons, Robert Beckett, Donald Vinciguerra, Carol Gillette
Life of this patent
Estimating the term…
Abstract
A method for locating a fault in an electric utility system includes retrieving fault data, with a computing system and analyzing relay history to find a pattern of events and locations, with the computing system. The method further includes analyzing the fault data to determine an approximate location with the computing system and determining, with a short circuit and load flow module, a pre-fault load. The method further includes running a short circuit study at a plurality of locations until a location is found that corresponds to the fault data and determining that the location is where a fault occurred.
Claims16
A method locating a fault in an electric utility system, the method comprising:
- retrieving fault data for the electric utility system, with a computing system;
- analyzing relay history to find a pattern of events and locations for the electric utility system, with the computing system;
- analyzing the fault data to determine an approximate location within the electric utility system with the computing system;
- determining, with a short circuit and load flow module, a pre-fault load for the electric utility system, with the computing system;
- running a short circuit study at a plurality of locations until a location is found that corresponds to the fault data for the electric utility system, with the computing system;
- determining that the location is where a fault occurred within the electric utility system, with the computing system.
A system for locating a fault in an electric utility system, the system comprising:
- a computing system, wherein the computing system is configured to and executes commands causing the computing system to:
- retrieve fault data for the electric utility system, with the computing system;
- analyze relay history to find a pattern of events and locations for the electric utility system, with the computing system;
- analyze the fault data to determine an approximate location for the electric utility system, with the computing system;
- determine, with a short circuit and load flow module, a pre-fault load for the electric utility system, with the computing system;
- run a short circuit study at a plurality of locations until a location is found that corresponds to the fault data for the electric utility system, with the computing system;
- determine that the location is where a fault occurred for the electric utility system, with the computing system.
Dependencies are inferred from the claim text.