Power transformers

When classified depending on the voltage levels in both sides of a transformer: step-up type (used in voltage increase from alterna...

Grid Sub-Stations

This is an arrangement of electrical conductors, towers, protective equipment, transformers etc for the operation and maintenance of ...

Overhead(O/H) Power Distribution

Power Distribution is the last part of the delivery of electrical energy to consumers. It is normally done in low voltage, for exampl...

Power & Power factor

In simple terms power is the work done in a unit time. Its SI unit is Watts (W). Basic equation of electric power = P = V*I Other main exp...

Thermal power stations

When we say thermal power stations, it really means a coal-fired power plant with steam turbines(ST). But , in common language, it may inc...

Power System Protection

Fault Vs Abnormal condition: Abnormal condition in a power system, as the word itself states, is a non-desirable state in a power system. ...

An introduction: Basic electricity and power engineering

Electricity is a form of energy, at the same time, a power source. It is an energy source when it is captured for a length of time and a p...

hydropower generation

Since water resources are abundant around the globe, generation of electricity by means of hydro-turbines is not a novel method. There ...

lightning protection and earthing specialists

Effects of Lightning   Fire   Mechanical Damages   Injuries to people & animal   Damages to electric & electronic equipment ...

Broadband wireless access systems

System  specifications   Made in israel   Trade name - alvarion, breezeaccess II    frequency band – 2.4 ghz   Voice - (telepho...

Digital Migration Radio System

  Analog radios do not have a vocoder, Which does analog-to-digital and digital- To-analog conversion (A/D and D/A).   Vocoder - A spec...

common circuits fm receiver fm transmitter synthesizer

  The microphone converts sound pressure wave to electrical signals.   These audio voltages are amplified by the audio amplifier. The a...

Broadband wireless access systems

System  specifications   Made in Israel   Trade name - Alvarion, Breeze ACCESS II    Frequency Band – 2.4 GHz   Voice - (Telepho...

Global Maritime Distress and Safety System

The fundamental difference between the old and the new distress system is that the new system is shore centred/coordinated and moves emph...