Power factor is the ratio between the real power (P in kW) and apparent power (S in kVA) drawn by an electrical load. The reactive power (Q in kVAr)...

The image (reproduced from IEC 60909) shows a typical fault in an ac system.  From the illustration it can seen that there is an initial dc component ...

If you are working on a large plan, get the real coordinates [latitude, longitude] for two or more points and add them to the drawing. That way you can...

Lamps are the essential part of any luminaire. These are the light generating components. Since the advent of electrical lighting in the middle of the...

Electric motors are one of the most widely used items of electrical equipment. Improving motor efficiency benefits include, reduced power demand, lower...

Motor starting and its associated problems are well-known to many people who have worked on large industrial processes. However, these things are, of course...

Using laser optical pulses the random number generator utilizes the time between arrival of random photos to generate the numbers, ensuring true accuracy...

Visitors who like to type web address rather then click menus may be interested in how our URL structure works.

Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...

Cable insulation is used to provide electrical separation between conductors of  a cable.  During the historical development of cables, numerous types...