Codes didn't work, why? Because this is a generator, it generates random keys, and there is not much chance that the key will match. This is how all key generators work.

Abstract: This amendment includes special requirements better suited for generator circuit breakers used to protect smaller generators rated between 10 MVA and 50 MVA and between 50 MVA and 100 MVA.

Abstract: Dynamic and non-linear systems have been used to generate random bits in high-security applications for decades. In this perspective, due to their stochastic characteristic, chaotic systems ...