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Technical Articles

Electric Motor

4 motor designs identified in NEMA MG1

Performance requirements for various types of induction motors for use on standard sinewave power supplies are identified in NEMA MG1. Some of these types of motors are suitable for use… Read more

Nov 01, 2013 | By Edvard

4 motor designs identified in NEMA MG1
Energy and Power

Natural Ventilation Of Power Substation

The operation of a system of natural ventilation is as a result of a decrease in air density as its temperature is raised due to the heat gain from various… Read more

Oct 18, 2013 | By Edvard

Natural Ventilation Of Power Substation
Energy and Power

General Arrangement of Hydropower Powerhouse

In general, a powerhouse in hydropower plant may be divided into three areas: The main powerhouse structure, housing the generating units and having either separate or combined generator and turbine… Read more

Oct 16, 2013 | By Edvard

General Arrangement of Hydropower Powerhouse
Energy and Power

An Overview Of Grounding System (Grounded)

Continued from technical article: An Overview Of Grounding System (Ungrounded) Solidly grounded system Resistance grounded system Reason for resistance grounding System earthing at EHV level Let us assume that R… Read more

Oct 14, 2013 | By Asif Eqbal

An Overview Of Grounded Grounding System
Energy and Power

An Overview Of Grounding System (Ungrounded)

Ungrounded system Derivation of current expression in ungrounded system Advantages & disadvantages of ungrounded system Concept of effective and non-effective grounding Coefficient of earthing and earth fault factor Before 1950… Read more

Oct 11, 2013 | By Asif Eqbal

An Overview Of Grounding System (Ungrounded)


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