Of the total electrical energy generated worldwide, about 58% is used by all motors combined, about 7% for lighting, and the remaining 35% for heating and other uses.Major types of... Read more
The synchronous generator excitation system is designed to produce the rotor magnetic field that can be varied to control the voltage and reactive power of the ship generator.In mo... Read more
Hand-held test meters should never be connected to any electrical equipment or system operating at a voltage that exceeds the meter’s rating. While this is an important safety prec... Read more
For the measurement of temperatures, there are three basic types of electrical thermometers. 1. Resistance thermometers operate on the principle that the resistance of a metal vari... Read more
To successfully carry out the various test procedures suggested in this manual, certain test instruments are essential. The following lists detail the basic requirements in this re... Read more
Secondary Essential Services These are important users that need not be in continuous operation; however they are necessary to maintain propulsion and steering, including a minimum... Read more
It may well save time and trouble to convert the ship wiring diagram into a much simpler and more useful circuit diagram. When converting a ship’s wiring diagram into a circuit dia... Read more
Occasionally a transformer winding becomes completely shorted. In most cases, this activates the overcurrent-protective device (circuit breaker or fuse) and de-energizes the circui... Read more
