The modernisation of electrical systems installed on board ships has made the use of high-efficiency electronic power components possible, but has however led to an increased rate of failures in the insulation system of the plant components, presumably due to reduced switching times of the equipment. This required the revision of the design process of these insulating systems in order to include electrical phenomena not currently considered, such as the non-linear distribution of overvoltages which leads to the accelerated and uneven aging of the insulating systems.
The INSYDE-PRO-SHIPS project aimed to improve the design and verification processes of electrical insulating systems on electric propulsion ships. A review of the current regulations on testing and validation of these systems was also carried out with the aim of ensuring their suitability on the onboard system for the customer.
The project made possible an increase in the reliability of the electrical system on board, in order not only to comply with the regulations on the safety of passengers on board ships (Safe Return to Port legislation), but also to limit the costs due to repair/replacement activities.