Induction motors are one of the major power-consuming load on the planet today and are widely used for all industrial and domestic applications. Plugging is one of the braking technique…
“Can we generate electricity from electricity?” This is a quite common question that many people ask. The answer for this question is amazingly simple but tricky. We need to understand…
Overhead transmission lines are not insulated primarily due to three reasons: first and foremost is to reduce the weight of the lines, secondly to save cost and the last is…
The utilization categories AC-1 and AC-3 defines making, breaking and continuous operation current rating for contactors. Based on these rating, contactor for switching of resistive loads and switching of squirrel…
A few small behavioural changes and other adjustments can help us save electricity as well as electricity bills. By saving electricity we are not only saving money but also saving…
Its hot inside lets turn on the AC!! The air conditioner is one of the high power consuming appliances at home. During sunny days you might have noticed a drastic…
Circuits can contain many power sources and power dissipation elements. It is common that any one of the elements in the circuit is a variable while all others are fixed.…
Power is transmitted over long distances at high voltage. In order to supply domestic and residential applications, it needs to be stepped down to 120V or 230V single phase. This…
Electrical engineers and electricians follow predefined wiring colour codes while wiring houses, commercial buildings and industrial panel boards. The electrical wiring colour codes followed is slightly different in every part…
In every control circuits and automation systems, logic is developed based on the open or closed state of switches, sensors or relays. Hence it is mandatory to know the concept…