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Technical Articles

Electric Motor

Induction motor startup and losses calculation

The main objectives while starting an induction motor are: To handle high-starting current To achieve high-starting torque. As we know, rotor resistance determines starting torque. Usually, this rotor resistance is small,… Read more

Mar 25, 2013 | By Edvard

Induction motor startup and losses calculation
Lighting

Hospitality lighting design, Why it matters

The hospitality business involves serving people and giving them enjoyment. From restaurants to hotels, resorts, and even theme parks, facilities are designed with the intent of transporting guests from the… Read more

Mar 23, 2013 | By Edvard

The functional office lighting realized through 422 luminaires
Energy and Power

Lightning Protection System – Germany Regulations

The purpose of a lightning protection system is to protect buildings from direct lightning strikes and possible fire, or from the consequences of the load-independent active lightning current (non-igniting flash… Read more

Mar 22, 2013 | By Edvard

Lightning Protection System - Germany Regulations
Electrical Lectures

The Rheostat In Few Simple Words

A variable resistor can be made from a wirewound element, rather than a solid strip of material. This is called a rheostat. A rheostat can have either a rotary control… Read more

Mar 20, 2013 | By Edvard

Startup rheostat of VL10 3 kV DC electric locomotive
Electric Motor

Starting Motor With Auto-transformer

An auto-transformer starter makes it possible to start squirrel-cage induction motors with reduced starting current, as the voltage across the motor is reduced during starting. In contrast to the star-delta… Read more

Mar 18, 2013 | By Edvard

Starting Motor With Auto-transformer
Energy and Power

Sources and Contributors To Short Circuit Current

Every electrical system confines electric current flow to selected paths by surrounding the conductors with insulators of various types. Short circuit current is the flow of electrical energy that results… Read more

Mar 15, 2013 | By Edvard

Sources and Contributors To Short Circuit Current
Wind Power

What Is The Purpose Of Wind Farm Lighting?

Wind farm lighting includes: Aircraft warning lights that are installed on tops of some turbine nacelles and Night lights around wind farm buildings, parking lots, or other facilities. Aircraft warning… Read more

Mar 13, 2013 | By Edvard

What Is The Purpose Of Wind Farm Lighting?
Energy and Power

An Overview Of Short Circuit Current (part 3)

Fault calculations are carried out to find the magnitude of fault current at various voltage levels of electrical system. One of the key components in the calculation process is to determine… Read more

Mar 08, 2013 | By Asif Eqbal

An Overview Of Short Circuit Current (part 3)
Electronics

Super Capacitors – Different Than Others (part 2)

Continued from first part: Super Capacitors – Different Then Others (part 1) Equivalent circuit How to measure the capacitance? Charge Method Discharge Method Measure Capacitance Capacitor types Advantages of the… Read more

Mar 01, 2013 | By sravankumarpadala

Super Capacitors - Different Then Others (part 2)
Energy and Power

An Overview Of Short Circuit Current (part 2)

Continued from previous technical article: An Overview Of Short Circuit Current (part 1) Sub transient reactance Xd” is the apparent reactance of the stator winding at the instant short circuit… Read more

Feb 27, 2013 | By Asif Eqbal

An Overview Of Short Circuit Current - Part 2


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