Abstract: Systems and methods for determining a location of a fault in a power delivery system are provided. Such a method may include receiving several single-end traveling wave fault location values and a single-end impedance fault location value based on measurements from a first intelligent electronic device at a local terminal. Based on a relationship between the single-end traveling wave fault location values, the single-end impedance fault location value, a location of the local terminal, and the location of the remote terminal, one of the several single-end traveling wave fault location values may be selected as a fault location value of highest confidence among the several single-end traveling wave fault location values.

Abstract: The present application relates to autonomous and/or real-time monitoring of power transmission devices using an unmanned vehicle. The unmanned vehicle may have a modular payload that controls the unmanned vehicle's positioning and orientation. The modular payload may include processing circuitry that controls data acquisition and perform processing of the collected data. Processing of the collected data may include determinations of the type of power transmission device being monitored and/or determinations of the operational status of the power transmission device being monitored. Communication between the autonomous vehicle and/or payload and the power transmission device may be established using radiofrequency data links.