Checking protections of the main air compressors

Greetings! I continue to write articles on checking the protection of various mechanisms on a ship and this time we will consider the compressors of the starting air of the main engine. Usually, they are of no interest to inspectors, but there are exceptions.

In this article, we will consider the main protections of the main air compressors that directly concern electricians. Let's take Japanese TANABE compressors as an example.

Start Fail. The fire pump does not start. Troubleshooting

Greetings! Today our fire pump does not start; the “Start Fail” signal is displayed on the motor controller. The Reset button does not reset the error.

We open the starter panel, open the fire pump start-up and operation circuit, and look for the “Start Fail” signal. The motor controller produces this signal in many cases.

Work of an ETO on ships with cranes. What most often breaks on cargo cranes?

Greetings! In this article, we will look at general issues related to the work of an ETO on ships with cranes.

Recently, the number of ships with cargo cranes in the world merchant fleet has been increasing, so this article will be of interest primarily to ETOs who are just starting to work on such vessels.

A cargo ship performs, among other things, two important tasks - unloading, loading and transporting cargo. All these tasks involve an ETO, who is assigned more of a repair role than an operation one.

Motor Fault on the crane. Troubleshooting

Greetings! Today we got a "Motor Fault" error on the cargo crane and the crane doesn't want to start. In the article we will consider the main actions of ETO when searching for and eliminating this malfunction.

Motor Fault on the Crane

The problem is quite large-scale and it can be anything related primarily to electric drives of both the main and auxiliary mechanisms of the crane. There was also a short-term accompanying signal in the ECR on AMS "low insulation 440V", which further narrowed the circle of my search.