Educational

Power Systems- Electricity Generation Basics -1

Power Systems- Electricity Generation Basics -1

 Energy for the Future This article highlights the basics of electrical power systems, which fundamentally includes various way of power generation. Generators  Use energy to generate electric currents.  A moving magnet pushes the electrons along a wire. The energy used to move the magnet is carried by the electric current.         Electricity Generation Basics &... »

Linear Variable Differential Transformer (LVDT)

Linear Variable Differential Transformer (LVDT)

What is an LVDT? LVDT is an acronym for Linear Variable Differential Transformer. It is a common type of electromechanical transducer that can convert the rectilinear motion of an object to which it is coupled mechanically into a corresponding electrical signal. LVDT linear position sensors are readily available that can measure movements as small as a few millionths of an inch up to several ... »

PRIMAVERA P6 PROGRESS LINE

PRIMAVERA P6 PROGRESS LINE

PRIMAVERA P6 PROGRESS LINE If you are looking for a real quick way to spot trouble in a project, the progress line is a vertical plot that provides the highest level view of schedule progress. Yes, it is a simple visual monitor for the project displaying exactly where you are ahead, behind, or on schedule. It’s great, in particular, for large projects where schedule discrepancy may not be easy to ... »

The most common methods of measuring the resistance of an earth electrode

The most common methods of measuring the resistance of an earth electrode

When an earth electrode system has been designed and installed, it is usually necessary to measure and confirm the earth resistance between the electrode and “true Earth”. The most commonly… Read more EEP – Electrical Engineering Portal »

Three-phase Y and Delta Configurations | Polyphase AC Circuits

Initially we explored the idea of three-phase power systems by connecting three voltage sources together in what is commonly known as the “Y” (or “star”) configuration. This configuration of voltage sources is characterized by a common connection point joining one side of each source. (Figure below)             Three-phase “Y” connection ... »

Vector Group of Transformer

Vector Group of Transformer Introduction: Three phase transformer consists of three sets of primary windings, one for each phase, and three sets of secondary windings wound on the same iron core. Separate single-phase transformers can be used and externally interconnected to yield the same results as a 3-phase unit. The primary windings are connected in one of several ways. The two most common con... »

Control of Synchronous Generators with Droop and Cross-Current Compensation.

Control of Synchronous Generators with Droop and Cross-Current Compensation. Details   Written by Stefanos Spanopoulos, MIET The excitation of a synchronous generator is usually done by an AVR (Automatic Voltage Regulator) that uses generator voltage and/or current as inputs in order to control its output to a pre-set value. AVRs include different control modes to optimise performance dependi... »

Pressure Measurement: Principles and Practice

Pressure Measurement: Principles and Practice

Pressure Measurement: Principles and Practice Do you find the sheer variety of pressure sensing methods and products daunting? This tutorial will help you take the pressure off yourself and put it on the right sensor for your application. How Is Pressure Measured? As with most measured quantities, pressure measurement methods have varying suitability for different applications. Measurement enginee... »

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