Reverse Power Relay is a directional protective relay that prevents/protect the generator from motoring effect (going to reverse direction). It is used where generator runs in para... Read more
In today’s scenario, Shipping has had a lot of improvements with all new modern electronic equipment and machines. A ship can be imagined just like a modern moving factory with all... Read more
In a ship diesel-electric power and propulsion system wit shaft propeller, the propellers are normally driven by variable-speed electric motors. The horizontal ship motors may be d... Read more
The direct on line ship motor will rotate with a speed directly determined by the ship network frequency. For propulsion, thrusters, pumps, winches, etc., there might be significan... Read more
Ship electric motor can be directly connected to the network, and such direct-on-line (DOL) motors are normally three-phase asynchronous, or induction motors. The ship asynchronous... Read more
The ship electrical motor is the most commonly used device for conversion from electrical to mechanical power on ship and is used for ship electric propulsion, thrusters for propul... Read more
The purpose of the ship transformer is to isolate the different parts of the electric power distribution system into several partitions, normally in order to obtain different volta... Read more
The main (or generator) switchboards are usually distributed or split in two, three, or four sections, in order to obtain the redundancy requirements of the vessel. According to ru... Read more
The majority of new buildings and all commercial vessels have an AC power generation plant with AC distribution. The generators are synchronous machines, with a magnetizing winding... Read more
The source for power is most often a generator set driven by a combustion engine which is fueled with diesel or heavy fuel oil. Occasionally one can find gas engines, and also gas... Read more
