Electrics

Electrical distribution systems are the equipment and cable systems distributing electrical energy from generators to consumers. The energy is distributed through cables, switchboards and other equipments to electrical motors, resistors, lighting, radio and navigation equipment. All these equipments are designed for a certain voltage and current. This is only a general presentation, details about ...

Load and Power Analysis is used to determine the power requirements for electrical generation, power conversion components and equipment. Also to estimate current requirements for electrical distribution equipment and components. It is useful  to calculate daily average electrical load determining fuel endurance and annual fuel consumption. The process is composed of two  main steps:  a.  i...

Electric current is the rate of charge flow past a given point in an electric circuit, measured in Coulombs/second which is named Amperes. The standard abbreviations for the units are 1 A = 1C/s. Voltage is electric potential energy per unit charge, measured in joules per coulomb ( = volts). It is often referred to as "electric potential", which then must be distinguished from electric potentia...

The electric power in watts represents the rate at which energy is converted from the electrical energy of the moving charges to some other form, as heat, mechanical energy, or energy stored in electric fields or magnetic fields. The efficiency of an entity (a device, component, or system) in electronics and electrical engineering is defined as useful power output divided by the total electrical ...

Knowing materials characteristics is important for any engineer in his job. Electrotechnical materials are considered not only for mechanical characteristics as density or linear dilatation but also for their electric characteristics as resistivity, electrochemical potential, variation of resistivity by temperature and others. Here you can find few materials with their main characteristics from el...