Ship protection and monitoring relays ensure safety and a high level of ship electrical system availability by monitoring electrical power (voltage, current, and frequency).An impo... Read more
When preparing a ship spares order, the reference numbers or letters should not be ignored, particularly If the requested type of relay is not available from the supplier and anoth... Read more
There are two basic types of pushbuttons on ship electrical system which are momentary and maintained. A normally open momentary pushbutton (S1,S2) only remains closed while the bu... Read more
Similar to contact symbols, switch symbols Identify open or closed paths of current flow with variations of the symbol representing: As with contacts, switches require a device or... Read more
Block diagrams represent the main arrangements and inter relationships between either different systems or different modules within one system. They create a general overview of th... Read more
Good Morning, I am currently recruiting for the Cruise positions. For more info, please send an updated CV to joseph@navis-consulting.com and I will be in touch. Communications E... Read more
Manned engine-rooms are rare nowadays. Modern automation systems such as remote control and alarm and monitoring systems make it possible to operate most engine-rooms unmanned, at... Read more
Naturally, all lamps are designed to produce their rated luminous output at their rated voltage. An overvoltage on an incandescent lamp produces a brighter and whiter light because... Read more
As you will have gathered, maintenance of cage-rotor induction motors tends to mainly involve the stator windings and bearings. Cage-rotors require little or no special care in nor... Read more
The maintenance requirements for cage-rotor induction motors are very simple: contact resistance low Keep insulation resistance high and Lubricate correctly and maintain a uniform... Read more
