Patent ID: 11927617
Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. A method for monitoring a condition of an electrical power transmission medium, the method comprising:
transmitting a signal to travel along the electrical power transmission medium;
detecting reflected signals in the electrical power transmission medium;
determining that a first arrival time of a first of the detected reflected signals indicates a reduction in arrival time compared to a second arrival time of a second of the detected reflected signals;
determining, via a monitoring device, based on the reduction in arrival time, a change in capacitance of the electrical power transmission medium,
identifying, via the monitoring device, a reference reflected signal that is set based on a reference location in the electrical power transmission medium, and
wherein the reference location in the electrical power transmission medium is a known location of a joint, a junction, or a terminal, exhibiting a discontinuity in characteristic impedance in the electrical power transmission medium, and not exhibiting an aging condition, and
wherein the reference location is associated with detecting sections of the electrical power transmission that exhibit an aging condition;
identifying, via the monitoring device, based on a comparison of the change in capacitance to the reference reflected signal, a section of the electrical power transmission medium that corresponds to the change in capacitance and exhibits the aging condition; and
determining, via the monitoring device, based on a comparison of the change in capacitance to the reference reflected signal, at least one of a length or a location of the section.