On-line time domain reflectometer system

摘要

A method of testing a power system component for anomalies comprises capacitively coupling one or more test sensors to an on-line insulated power cable. A test pulse is generated and 5 transmitted to at least one test sensor of the one or more test sensors. The test pulse is capacitively transmitted from the at least one test sensor of the one or more test sensors onto the insulated power cable so that the test pulse travels along the insulated power cable. A reflected pulse is capacitively received by one test sensor of the one or more test sensors from the insulated power cable, the reflected pulse resulting from the test pulse interfacing with an 0 anomaly along the insulated power cable.