Many forms of electrical protection on ship are available which are designed to protect the distribution system when a fault occurs. Protection relays are used to monitor overcurre... Read more
A ship shore-supply is required so that the ship’s generators and their prime-movers can be shut down for major overhaul during a dry-docking period. There must be a suitable... Read more
If a single earth fault occurs on the live line of an earthed ship distribution system it would be equivalent to a short-circuit fault across the generator through the ship’s... Read more
A ship’s electrical distribution scheme generally follows shore practice. This allows normal industrial equipment to be used on board ship after being “marinised”... Read more
The function of a ship’s electrical distribution system is to safely convey the generated electrical power to every item of consumer equipment connected to it. Probably the m... Read more
Generally, fault finding on ship is not an easy task. It is essential to have a good under-standing of the operation of the particular equipment and general insight into some of th... Read more
Electronic diodes, and other semi-conductor devices with p-n junctions (e.g. the base-emitter of a transistor) can be tested using a digital type instrument using the following pro... Read more
Ideally insulation resistance measurement on ship electrical machine is while the machine is hot? Insulation becomes more leaky (its IR value falls) at high temperatures. So testin... Read more
Anyone who has access to live electrical equipment must be fully aware of first-aid and safety procedures related to electric shock as described in relevant safety acts. Copies of... Read more
Ships’ staff must operate equipment in a safe manner and maintain it in a safe condition at all times. Failure to do so will cause danger with serious consequences arising. K... Read more
