Vacuum Systems
Vacuum systems are very common for driving gyro instruments. In a vacuum system, a stream of air directed against the rotor vanes turns the rotor at high speed. The action…
Electrical Motor Overhauling on Ships
Like any other mechanical machinery, electrical motors also have their own running hours, after which, the complete overhauling of the motor is to be done to ensure efficient working and…
Earth Fault on Ships
Earth fault is considered very critical on board a ship. Some ships, which operate at 440V do not have any trip devices attached for a single earth fault. However, when…
Blackout Situation
Blackout is one condition each and every mariner is familiar with and also afraid of. It is one situation everyone on the ship is terrified of as it brings the…
Solid State Magnetometers
Solid state magnetometers are used on many modern aircraft. They have no moving parts and are extremely accurate. Tiny layered structures react to magnetism on a molecular level resulting in…
Solid state magnetometer units
Further enhancements to direction finding systems of this type involving the integration of radio navigation aids are common. The radio magnetic indicator (RMI) is one such variation. In addition to…
Main And Emergency Switchboard Safety
It is very important to isolate any type of fault in an electrical system supplied from the main switchboard (MSB), or else, it will affect all the other systems connected…
Amplifier And Amplifier Circuits
An Amplifier or an operational amplifier (op-amp) circuit is commonly used in the automation, control and other electronic circuits of marine applications. The applied input signal is normally a voltage…
Rectifier And Rectifier Circuits
Since most of the ships generate A.C current from its alternator, it becomes essential to use a device, along with the transformer, that can convert this A.C current into D.C…
Thermocouples
Thermocouple is a device widely used as a pyrometer on board ships for continuous measurement of temperature for machinery systems such as main engine, auxiliary engine, gas turbines etc. It…
