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Technical Articles

Energy and Power

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 | By vinod ramireddy

An overview of Combined Cycle Power Plant (photo credit:

Power Transformer Construction – Windings

Continued from tech. article: Power Transformer Construction – Core The windings consist of the current-carrying conductors wound around the sections of the core, and these must be properly insulated, supported and… Read more

Aug 24, 2012 | By Edvard

750kVA dry type transformer windings

Power Transformer Construction – The Core

The construction of a power transformer varies throughout the industry. The basic arrangement is essentially the same and has seen little significant change in recent years, so some ofthe variations… Read more

Aug 23, 2012 | By Edvard

Power Transformer Construction - Core
Energy and Power

High resistance grounding equipment in mining applications

High resistance grounding equipment or permanently installed electrical distribution systems used in mines should be selected and applied as recommended for process industries. When mobile equipment is connected to the distribution system… Read more

Aug 22, 2012 | By Edvard

High resistance grounding equipment in mining applications
Energy and Power

Overview Of Power System Architecture

The various components of a power system can be arranged in different ways. The complexity of the resulting architecture determines the availability of electrical energy and the cost of the… Read more

Aug 21, 2012 | By Edvard

Overview Of Power System Architecture
Energy and Power

An Overview Of Smart Power Grid

The present electric grids use the technology of 1970’s. But with the advancement in various concepts of power generation, problems associated with power outages and thefts, and also due to… Read more

Aug 20, 2012 | By vinod ramireddy

An Overview Of Smart Power Grid
Energy and Power

Properties of Relay Contact System

The word “contact“ not only describes the conductive connection ot two mechanically separate electrical conductors, but also the conductive parts (contacts) even if they are not touching. Contacts comprise: Non… Read more

Aug 18, 2012 | By Edvard

Properties of Relay Contact System
Energy and Power

Site Conditions Impact on Caterpillar Genset Ratings

An engine rating is primarily limited by structural and thermal limits. These limits include maximum cylinder pressure during combustion, turbocharger speed, exhaust gas temperature and in natural gas engines, fuel type. Where an… Read more

Aug 17, 2012 | By Edvard

Site Conditions Impact on Genset Ratings - Caterpillar
Electrical Lectures

Water-and-Pipe Analogy for Ohm’s Law

Ohm’s Law also makes intuitive sense if you apply it to the water-and-pipe analogy. If we have a water pump that exerts pressure (voltage) to push water around a ”circuit” (current)… Read more

Aug 15, 2012 | By Edvard

An analogy for Ohm’s Law
Smart Grid

Smart grid deployment, what we’ve done so far

The many smart grid technology areas – each consisting of sets of individual technologies – span the entire grid, from generation through transmission and distribution to various types of electricity… Read more

Aug 14, 2012 | By Edvard

Smart grid technology areas
Electrical Lectures

Electric Shock Current, Where Does It Go?

As we’ve already know, electricity requires a complete path (circuit) to continuously flow. This is why the shock received from static electricity is only a momentary jolt: the flow of… Read more

Aug 13, 2012 | By Edvard

Electric shock current, where does it go?

Delayed Auto-Reclosing On EHV Systems

On highly interconnected transmission systems, where the loss of a single line is unlikely to cause two sections of the system to drift apart significantly and lose synchronism, delayed auto-reclosing can be employed…. Read more

Aug 11, 2012 | By Edvard

Delayed auto-reclose scheme logic
High Voltage

Primary Distribution Voltage Levels

Most distribution voltages are between 4 and 35 kV. In this article, unless otherwise specified, voltages are given as line-to-line voltages; this follows normal industry practice, but it is sometimes… Read more

Aug 10, 2012 | By Edvard

Primary Distribution Voltage Levels
High Voltage

The Structure Of Power System

An interconnected power system is a complex enterprise that may be subdivided into the following major subsystems: Generation Subsystem Transmission and Subtransmission Subsystem Distribution Subsystem Utilization Subsystem Generation subsystem includes… Read more

Aug 09, 2012 | By Edvard

The structure of power system

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