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Monthly Archive for: «March, 2012»

Lighting

Architectural Luminaires – Unusual Visual Effects

Architectural luminaires are custom-designed and built fixtures that offer features not available in commercial luminaires. They can be built to fit specific locations or perform desired functions as well as… Read more

Mar 31, 2012 | By Edvard

Architectural luminaires used for interior lighting design
High Voltage

Substation Main Functions and Classification

An electrical substation is an assemblage of electrical components including busbars, switchgear, power transformers, auxiliaries etc. These components are connected in a definite sequence such that a ckt. can be… Read more

Mar 29, 2012 | By Edvard

1Alstom - 45kV Gas-insulated switchgear GIS (F35)
Electrical Lectures

Capacitor Banks In Power System (part four)

Let us consider that there is a captive diesel generator (DG) the rating of which is specified as 1000kVA and PF 0.85. Rating in kVA specifies the maximum current the… Read more

Mar 27, 2012 | By Asif Eqbal

Alternator capability curve
Energy and Power

Inspection of electrical installations in home (1)

Europe has an ageing housing stock. There are many homes with outdated wiring. This wiring is deteriorating, has been inappropriately amended, or is insufficient for the electrical loads of today’s… Read more

Mar 24, 2012 | By Edvard

Electrical installations in home
Energy and Power

Smart Grid Concept and Characteristics

A smart grid is an electricity network that uses digital and other advanced technologies to monitor and manage the transport of electricity from all generation sources to meet the varying… Read more

Mar 21, 2012 | By Edvard

Smart Grid
High Voltage

How HV transmission lines affects humans and plants?

By increasing population of the world, towns are expanding, many buildings construct near high voltage overhead power transmission lines. The increase of power demand has increased the need for transmitting… Read more

Mar 20, 2012 | By jiguparmar

How HV transmission lines affects humans and plants?
Energy and Power

Few more words about energy stored in batteries

Electrochemical storage systems In this article various types of batteries are described. Most of them are technologically mature for practical use. First, six secondary battery types are listed: lead acid,… Read more

Mar 19, 2012 | By Edvard

High-efficiency lead acid batteries
Cables

Copper or aluminium? Which one to use and when?

Apart from their electrical conductivity, the other technologically important properties of copper and aluminium differ so significantly (density is an obvious example) that their areas of application are and have… Read more

Mar 16, 2012 | By Edvard

System with two copper bus bars
Energy and Power

Megger Insulation Resistance Test

As you know good insulation has high resistance and poor insulation relatively low resistance. The actual resistance values can be higher or lower, depending upon such factors as the temperature… Read more

Mar 13, 2012 | By Edvard

Megger Insulation Resistance Test
Renewable Energy

Renewable Energy Outlook – Wind Power

With the exception of hydroelectric power, the wind-power industry is far more developed than most other types of renewable energy. Over the past decade, the technology associated with wind power… Read more

Mar 10, 2012 | By Edvard

Windmills positioned to take advantage of the frequent and reliable winds
Energy and Power

The real truth behind household power savers

A household power low voltage saving devices has recently received a lot of attention from both consumers and manufacturers. It is generally used in residential homes to save energy and… Read more

Mar 07, 2012 | By jiguparmar

Household Power Saver


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