In today's LNG industry, the use of diesel-electric propulsion for ship propulsion is increasing. Especially looking at the period of the last 10 years, it has largely suppressed the steam-turbine propulsion that has been leading as far as the LNG industry is concerned. Shipowners want to get a reliable, safe, but also better type of propulsion in terms of financial condition. Precisely for these reasons, a diesel engine with a higher efficiency than steamturbine plants is also used. Whether this propulsion has a bright future time will tell, but from this point of view it can be said that it has become widespread not only in the LNG industry but also on cruise ships, and on many other types of ships. Shipowners or shipbuilders want to get this type of propulsion to reduce even the slightest possibility of human error, which is II why the degree of automation at this propulsion is at a very high level. Almost all control can be performed from the central control point that is, from the ECR (Engine control room), and the system is designed so that it is almost impossible to perform some actions that would lead to shipwreck, the system protects itself with interlockslocks.