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Archive: Category «Energy and Power»

Inspection of Ground-Fault Protection Systems

This type of protection is defined by the NEC (National Electrical Code) to ensure protection against fire on electrical power installations. To ensure protection against fire: The NEC defines the… Read more

Sep 25, 2012 | Edvard

Inspection of Ground-Fault Protection Systems

Surge Protection of Electronic Equipment

Generally, power circuits have components that have large thermal capacities, which make it impossible for them to attain very high temperatures quickly except during very large or long disturbances. This… Read more

Sep 22, 2012 | Edvard

Surge Protection of Electronic Equipment

Introduction to Static Protection Relays

The term ‘static’ implies that the relay has no moving parts. This is not strictly the case for a static relay, as the output contacts are still generally attracted armature… Read more

Sep 21, 2012 | Edvard

RSR-72 Static relay for motor re-start and reacceleration

What is the purpose of equipotential bonding?

Equipotential bonding is essentially an electrical connection maintaining various exposed conductive parts and extraneous conductive parts at substantially the same potential. An earthed equipotential zone is one within which exposed… Read more

Sep 20, 2012 | Edvard

Purpose of Equipotential bonding

Definition of Harmonics and Their Origin

The Fourier theorem states that all non-sinusoidal periodic functions can be represented as the sum of terms (i.e. a series) made up of: A sinusoidal term at the fundamental frequency,… Read more

Sep 17, 2012 | Edvard

Definition of Harmonics and Their Origin

Functions Performed by Electrical Switchgear

National and international standards define the method for making electrical distribution circuits as well as the purpose and functions of switchgear. There are three main functions, namely: Circuit protection takes… Read more

Sep 14, 2012 | Edvard

Functions Performed by Electrical Switchgear

Nikola Tesla – Everything is the Light

Once, in 1899, Nikola Tesla had an interview with certain journalist John Smith, when Tesla said “Everything is the Light“. In one of its rays is the fate of nations, each… Read more

Sep 12, 2012 | Edvard

Tesla meets King Peter II of Yugoslavia on July 15, 1942

Transformer Heat, Copper and Iron Losses

The thermal ratings of a transformer are determined by the following three factors: The amount of heat produced in the windings and connections. The amount of heat produced in the… Read more

Sep 06, 2012 | Edvard

Transformer Heat, Copper and Iron Losses

Getting Electricity From Solid Oxide Fuel Cell

Abstract Introduction Fuel Cell Working Principle of SOFC Materials Selection and Processing Cathode Electrolyte Anode Interconnection Types of SOFC Merits and Demerits Applications Stationary energy sources Transportation Military applications SOFC-GT… Read more

Sep 03, 2012 | vinod ramireddy

Getting Electricity From Solid Oxide Fuel Cell

Floating Neutral Impacts in Power Distribution

If the Neutral Conductor is opened, broke or lost at either of its source side (Distribution Transformer, Generator or at Load side – Distribution Panel of Consumer), the distribution system’s… Read more

Aug 27, 2012 | jiguparmar

Floating Neutral Impacts in Power Distribution

An Overview of Combined Cycle Power Plant

The Combined Cycle Power Plant or combined cycle gas turbine, a gas turbine generator generates electricity and waste heat is used to make steam to generate additional electricity via a… Read more

Aug 25, 2012 | vinod ramireddy

An overview of Combined Cycle Power Plant (photo credit: businesswire.com)


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