SEC-Marine have recently won a contract to design and install a robust power management system on board a Beautiful 30M explorer yacht currently based in Imperia Italy, the vessel has a basic split bus power distribution system, and historic phase imbalance problems. Our custom system, monitors the problem boards for phase imbalance, and over current, and any reports any level above the adjustable limit to a custom indicator panel with audible alarm, and from here we have the option to set preferential trips as required, we will also be installing phase rotation indication at the shore connection position.