Main Engine Protections. Quick Check for Inspectors

Greetings! In this article, I recommend that you familiarize yourself with the main protections of the main engine on a vessel, which are most often checked by inspectors. The main engine and its auxiliary systems have a lot of protections, so only the main ones will be described, which are demonstrated when passing a particular check.

The main engine and auxiliary engines differ mainly in their purpose. But in terms of protection, they have much in common. In the article "Diesel Generator Protections. A Quick Check for the Inspector" oil mist detectors (OMD - Oil Mist Detector) were mentioned, which can be installed on diesel engines with a capacity of 500 - 1000 kW, so on the main engines, as a rule, they are.

Steering gear protections on the vessel. Quick check for the inspector

Greetings! Today we will consider all the steering gear protections on the vessel, and also figure out how to check them. For example, the FLUTEK - KAWASAKI steering gear will be considered.

As it happens in ports, port state control comes to the vessel and checks the safety systems of the mechanisms. Very often, the protections and operation of the steering gear are checked according to the register requirements.

UPS fail. Main engine automatic backup does not work. Kongsberg Troubleshooting

The UPS fail error occurred and the final system for protecting the main engine against automatic power failure failed. A BMS AC220V UPS FAIL alarm appeared on the alarm monitoring system in the ECR. BMS - Bridge maneuvering system.

BMS AC220V UPS FAIL

In simple words, the uninterruptible power supply (UPS), which is designed for the normal operation of the automatic control system of the main engine during the transition of the ship's electrical station from main to emergency power, has stopped working.

High temperature. The thermocouple on the engine has failed. Kongsberg Troubleshooting

The No. 1 auxiliary engine has activated a high exhaust temperature alarm. In this article we will analyze the actions of electrical engineer to find and fix these problems.

In the exhaust system on the engine there are two thermocouples that measure the temperature at two points (A and B), these points correspond to their group of cylinders. The values at both points should be approximately equal (at 500°C), but the thermocouple at point B showed a temperature of 620°C and it continued to rise on the AMS monitor.

IFL alarm. The pressure sensor is out of calibration limits. Kongsberg Troubleshooting

Today we got an alarm G/E 2 H.T. C.F.W in press IFL on fresh cooling water pressure on auxiliary engine No.2 (which was not in work). In this article, I propose to figure out what kind of alarm this is and how to fix the problem.

First of all, let's turn to the instructions to understand what IFL alarm is. According to the instructions, IFL alarm is an alarm based on a low value of the input signal; if the pressure transmitter transmits a signal below 4 mA, then this alarm appears.

Failure of the remote automatic control of the main engine. Actions of the ETO. Kongsberg Troubleshooting

Greetings! In this article, we will consider the actions of the ETO in case of failure of the remote automatic control of the main engine (real situation).

The vessel is equipped with the AutoChief C20 Propulsion Control System, which is very often used for fixed-pitch MAN MC engines. Produced by Kongsberg Maritime.