The world’s first electric ferry will be launched in the year 2015 in Norway by Siemens and Norwegian shipyard Fjellstrand. The vessel will take only 10 minutes to recharge.
A Guide to Welding Electrodes on Ships – Part 2
August 20, 2012 By
This is the second article of the series A Guide to Welding Electrodes on Ships. Learn about the different types electrode nomenclature and classification in this article. This is a must-read guide for all mariners.
Why are Transformer and Alternator Ratings in kVA on Ships?
July 25, 2011 By
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.
Reasons for Using High Voltage Systems On board Ships
July 24, 2011 By
A Ship cannot run on the traditional electrical systems with less voltage. The high capacity marine diesel engines and other machinery on ships require higher voltage systems to produce more electrical power. Find out the reasons for using high voltage systems on board ships.
How to Find an Earth Fault On board Ships?
July 18, 2011 By
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.
Maintenance of Electrical Relay on Ships Electrical Circuit
July 14, 2011 By
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.
How to Install Electronic Circuits on Ship?
May 17, 2011 By
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.
Electric Propulsion System for Ship: Does it have a Future in the Shipping?
May 16, 2011 By
With the increase in demand for alternate 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. With all the options presently available at hand, electric propulsion system [...]
Electrical Propulsion System in Ships
May 14, 2011 By
The shipping industry has come a long way as far as R & D for reducing costs of propulsion without increasing marine pollution is concerned. The conventional propulsion system of the ship is efficient but requires high operating costs and increases the marine pollution. Among all the prospective alternate power sources, electrical propulsion system is [...]
What is Alternate Marine Power (AMP) or Cold Ironing?
May 10, 2011 By
Huge ships and tankers pollute the marine ecosystem considerably. The pollution caused includes acid rain because of sulphur oxide and smog because of nitrous oxide. In order to make sure that the levels of these pollutants do not increase further, there has emerged the concept of cold ironing or alternate marine power.
Construction and Working of 3 Phase Induction Motor on Ship
April 30, 2011 By
The popularity of 3 phase induction motors on board ships is because of their simple, robust construction, and high reliability factor in the sea environment. A 3 phase induction motor can be used for different applications with various speed and load requirements.
Understanding Rectifier and Rectifier Circuits on Ship
April 13, 2011 By
Apart from their small size, all electrical and electronic equipment or circuit on boards on ship play a vital role in operation of ship’s system and machinery. Different equipment onboard vessel utilizes alternating current, direct current or both depending upon the nature of operation. Some of the Very important circuits and setups are run through [...]
