Electrical ratings of transformer and alternator on ships are always done in kVA. Find out why they are mentioned in only KVA and not in KW, by understanding the concept behind the electrical systems working on ship.
Earth fault is considered very critical on board a ship. Some ships which operate at 440 V do not have any trip devices attached for a single earth fault. However when the operating voltage exceeds 3000V, it is mandatory to have a protection system which isolates when a machinery suffers an earth fault.
Electrical relay is an important part of a ship’s electrical system. Relay is a protective device which protects an electrical system from overloads and short circuits. Know more about the maintenance of electrical relay inside the article.
With increase in modern technology and automation in ship’s machinery and operations, electronic circuits like printed circuit board or PCB along with signal transducer and transmission system are popularly used onboard. Since these are very small and vital circuits they require proper location and precaution for their installation.
With the increase in demand for alternative propulsion systems that not only improve the overall efficiency of the ship but also reduce the carbon footprints, innovators in the shipping industry are leaving no stone unturned to find a solution to this grave problem.
Marine diesel & turbine electric propulsion motor are alternative sources of marine propulsion.Propeller shaft of the ship is attached to large propulsion motor
Marine Insight is launching a new FREE ebook – A Guide to Electro-Technology – Part 1 for electrical officers and marine engineers. The ebook answers some of the most commonly asked questions asked by shipping professionals.
Since most of the ship generates A.C current from its alternator, it becomes essential to use a device, along with transformer, which can convert this A.C current into D.C current for the use of those equipment or circuit running on D.C.
Thermocouple is a device which is widely used as a pyrometer onboard ship for continuous measurement of temperature