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Electric Circuit Analysis

All About Electrical Protection Systems, Devices And Units

Electrical Protection Systems And Units

Electrical Protection Units And Systems Introduction to Electrical Protection Systems HV, MV and LV[1] electric installations and equipments are subjected to internal and external faults that can cause serious damages in persons and other equipments. To avoid and to minimize the consequences of those faults protection devices associated to equipments that are able to break electric current are required. For …

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Design of Grounding / Earthing System in a Substation Grid

Design of Grounding Earthing System in a Substation Grid - Substation earthing grid

Design of Earthing / Grounding System in a Substation Grid By: Manuel Bolotinha Introduction to Substation Earthing Grid In high and medium voltage[1]Air Insulated Substations (AIS) the electromagnetic field, which causes are the static charges of bare cable and conductors and by the atmospheric conditions (surges), induce voltages at no-live parts of the installation that create potential differences between metallic …

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Introduction to Harmonics – Effect of Harmonics on Power System

Introduction to Harmonics

What are Harmonics and How to Filter and Eliminate it. (Manuel Bolotinha) Introduction to Harmonics The quality of electrical power supply is an important issue both for utility companies and users, but that quality may affected by electromagnetic disturbances. Among these disturbances it must be highlighted harmonics that happens in all voltage levels and whose study, calculation of acceptable values …

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Short Circuit Currents And Symmetrical Components

Short Circuit Currents faults And Symmetrical Components

Short Circuit Currents And Symmetrical Components (Manuel Bolotinha) Short Circuit Faults and Currents Short-circuits can occur phase-to-phase and phase-to-earth, mainly due to: Dielectric breakdown of insulating materials (ageing, severe overheating and overvoltages, mechanical stress and chemical corrosion are the main factors for dielectric breakdown) Decrease of creepage distance (the shortest path between two conductive parts – or between a conductive …

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What is MEMS – Microelectromechanical Systems Technology ?

What is MEMS - Microelectromechanical Systems Technology ?

A Introduction to Microelectromechanical Systems (MEMS) Technology Let us define MEMS! MEMS stands for Micro-Electro-Mechanical System, an integrated system of mechanical and electro-mechanical devices and structures, manufactured using micro fabrication techniques. A MEMs device consists of 3 dimensional properties which sense and manipulate any physical or chemical property. Basic components using micro sensors, micro actuators and other micro structures, which …

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An Overview of Energy Conservation in Buildings

Tips & Techniques for Energy Conservation in home & Building

Tips & Techniques for Energy Conservation in Buildings The high energy costs adversely affect all sectors of the economy and a determined effort to reduce the energy consumption and costs is, therefore, we need energy conservation and an energy efficient system in our homes as well as industrial and commercial sectors. Energy is one of the major inputs for the …

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What is LabVIEW and How to make basic Electrical Projects in LabVIEW?

What is LabVIEW and How to make basic Electrical Projects in LabVIEW?

Introduction to LabVIEW and Basic LabVIEW Based Electrical Projects As a proven useful tool for prototyping, the LabVIEW graphical development platform delivers a numerous solutions to a wide variety of applications such as instrumentation control, embedded monitoring and control systems, data acquiring and processing, automation test and validation systems, etc. LabVIEW includes hundreds prewritten libraries which help to create flexible …

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Maximum Power Transfer Theorem for AC & DC Circuits

Maximum Power Transfer Theorem for AC & DC Circuits

Maximum Power Transfer Theorem for AC & DC Circuits Introduction to Maximum Power Transfer Theorem Very often we come across various real time circuits that works based on maximum power transfer theorem. For effective way of connecting source to load, an impedance matching transformer is used. In case of transmission lines, the distortion and reflections are avoided by making source …

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