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

Claim 11:
12. A system for monitoring a condition of an electrical power transmission medium, the system comprising:
a voltage source for transmitting a signal to travel along the electrical power transmission medium; and
at least one sensor configured to:
detect reflected signals in the electrical power transmission medium,
determine 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,
determine, based on the reduction in arrival time, a change in capacitance of the electrical power transmission medium,
identify a reference reflected signal that is set based on a reference location in the electrical power transmission medium,
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,

identify, 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
determine, 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.