Electrical Cable Diagnostic System

A resonant test system for diagnostic testing of electrical cables, the resonant test system comprising:

• an inverter configured to receive a direct current (DC) voltage at an input and to output an alternating current (AC) voltage at an output;
• an exciter operatively coupled to the inverter, the exciter amplifying an amplitude of the AC voltage;
• a reactor having an input that is operatively coupled to the exciter and an output that is configured to be operatively coupled to an electrical cable;
• and
• a processing device operatively coupled to the inverter and the reactor, the processing device being programmed to adjust an inductance of the reactor and an output frequency of the inverter to achieve resonance in series with the electrical cable.

A non-transitory computer-readable medium storing instructions, wherein execution of the instructions by a processing device causes the processing device to implement a process for diagnostic testing of an electrical cable, the process implemented upon execution of the instructions comprising:

• setting an output frequency of a resonant test set to a first frequency value;
• adjusting an inductance of the resonant test set to set the inductance of the resonant test set to a test inductance value;
• adjusting an output frequency of the resonant test set to set the output frequency to a test frequency, the test inductance value and the test frequency being set to achieve resonance in series with an electrical cable under test;
• and
• performing diagnostic testing of the electrical cables with the resonant test set at the inductance test value and the test frequency value.