Procedure for measuring the impedance of a grounding system that comprises a loop, the procedure comprises for each frequency fi of a set of frequencies F of a frequency sweep applied to the loop of the grounding system, generating a modulating signal S (2...

A system and method for detecting a grid event is provided. The method includes sampling 502 grid voltage and grid current over a fixed period of time; determining 504 grid impedance at one or more frequencies using the sampled grid voltage and the sampled...