About Protection and control systems of the main auxiliary generators of the ship have to work even years after the ship has been delivered. However, some parameters such as external factors which can occur after some time, and equipment life can cause the equipment to work improperly. It is possible to detect these faults before they occur to protect the user from damage that may arise due to faults.

Comap, DEIF (PPM-3, Delomatik-4 ), Symap (Stucke Elektronic) are some well knowm equipments.