How to read electrical diagrams on a ship? Main engine turning gear operation diagram

Greetings! You have motivated me to write this article. Thank you for your comments to the previous article "Installing a timer in the electrical diagram of the main engine turning gear" and in social network groups. In fact, writing such articles takes a lot of time and effort, so motivation and support are needed. And it is enough to just write a positive review ;)

In this article I will try to explain in simple language the principle of reading electrical circuits on a ship using the example of the main engine turning gear device.

Boiler does not switch to the second stage. Troubleshooting

Greetings! Here is another article about boiler malfunctions and this time we will analyze an interesting case when the Miura boiler does not switch to the second stage in automatic mode, while there are no visible problems or alarms.

In fact, the problem was that the boiler could not increase pressure and stop, it was working all the time. After that, it was noticed that it did not use the second stage (High Combustion) to supply more fuel to the injector.

Phase fail. The turning gear and the LO autofilter of the main engine do not start

Greetings! Today we have a problem with the turning gear and the LO autofilter of the main engine. During the preparation of the main engine, alarms were sent to the alarm monitoring system in the ECR indicating that some kind of problem had occurred with these mechanisms.

It is necessary to pay attention to the fact that problems with starters or motors occurred at the same time and perhaps they have something in common. On a ship, these systems are not connected to each other in any way.

Installing a timer in the electrical circuit of the main engine turning gear

Greetings! With this post I propose to start the section “reading electrical diagrams on a ship” and examine one of the interesting questions regarding the shaft turning gear of the main engine.

This article is primarily suitable for those who already have some knowledge of reading electrical circuit diagrams.