For measuring several electrical parameters to analyze and keep machineries in proper running condition, a permanent magnet moving coil (PMMC) instrument is used onboard.
Energy efficiency is of sheer importance in all aspects of shipping operations today. The electrical system being one of the most important aspects on board must be included in the ship’s energy efficiency plans. Learn ten ways to achieve energy efficiency in ship’s electrical system.
Nowadays marine engineers are required to know all important electrical systems of the ship and problems related to them. Learn about ten such important electrical jobs which engineers on board ship must know.
The efficiency of the main engine is directly related to its performance. Mentioned in this article are eight important was to measure marine engine performance.
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.
Navigation lights of the ships still play an important role in ship navigating procedures at sea. These lights require periodic maintenance to ensure smooth functioning. Find out the basics of navigation lights maintenance on ships.
Inspection of busbars in main and emergency switchboards on ships is important to prevent accidents caused due to electrical faults such as short circuits, fire etc. Learn how busbar inspection is to be done on board ships by taking all necessary safety precautions.
Just like any other machinery systems on board ships, motor starter panel also needs regular maintenance to ensure smooth operations of motors. The article explains important points and procedure for motor starter panel routines and maintenance.
Like any other mechanical machinery on board ships, motors also have their own running hours, after which, the complete overhauling of the motor is to be done to ensure efficient working and performance.
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.
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.
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.
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.
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
Alternate marine power or cold ironing is a method of providing power to the ship from an external source. AMP is getting recognition around the world because of the rise in marine pollution.
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.
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.
An Amplifier or an operational amplifier (op-amp) circuit is commonly used in the automation, control and other electronic circuits for marine applications. The applied input signal is usually a voltage or a current signal.
With new stringent regulations against pollution being introduced, it is important for the manufacturers to build marine engine that satisfy these norms and do not hamper the normal operation of the engine. To achieve this, engines are provided with several automation systems, which not only reduce the pollution level but also increase the efficiency of […]
Thermocouple is a device which is widely used as a pyrometer onboard ship for continuous measurement of temperature