Showing posts with label Engineering. Show all posts
Showing posts with label Engineering. Show all posts

Monday, March 26, 2012

The Engineering Toolbox

The Engineering Toolbox is a nice place for Electrical and other engineers for a quick reference into complicated equations and formulae. Visit this site at http://www.engineeringtoolbox.com/ and book mark the same for your future reference. You caqn even sign up for some useful free industry publications from here.

Thursday, March 22, 2012

Massachusetts Institute of Technology Open Courseware

Massachusetts Institute of Technology (MIT) Open Courseware

Massachusetts Institute of Technology offers open course lecture notes and courseware. You can download interesting lecture notes courseware and other materials and study Electrical Engineering and software technology. The course wares are very short and prepared for easy understanding. Please visit the link address below to learn more.

http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/

What is electrical engineering?

What is electrical engineering? This question is asked several times in a day. I also asked the same question to find an answer with Google Search. The answers I got were astonishing. The first answer came from Wikipedia the online encyclopaedia. The answer to the question What is electrical engineering? The answer was Electrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism. The question was answered by Xtreme like Electrical engineering is concerned with the basic forms of energy that run our world. Even the YouTube provided an answer - What is Electrical Engineering? Students at Iowa State tell you what electrical engineering means to them. Other answers I find to the question is also listed below:

  • · Electrical Engineers apply electronic and electromagnetic/optical design principles to design, build, and test analogue or digital devices, circuits, and systems!
  • · Electrical engineering is concerned with research, design, development, manufacture, installation, operation, maintenance...
  • · Electric engineers are the professionals that deal with the study and application of electricity, electronics and electromagnetism.
  • · Electrical engineers perform jobs such as developing new ways of making microchips, designing communications systems, using lasers and ...

Try a Google or yahoo search and find more answers.

Thursday, March 8, 2012

LMP Electrical Calculations Software 2.70.0.4 A review

We have discussed about some useful electrical calculation software in our previous posts. Today we will go through Electrical Calculations 2.70.0.4, from LMP is a software that performs electrical calculations for bus bars, cables, power factor correction, motor control. We in the electrical engineering field come across different calculation issues. Calculations involved in the field of Bus bar, Cable, Power supply, ventilation, induction motor, power factor etc can be easily performed using LMP Electrical Calculations 2.70.0.4 software. Electrical Calculations software provides calculations for bus bar and cable ratings, static and bulk power factor correction, motor starting currents and curves, enclosure ventilation, transformer calculations and many metric / imperial conversions and constants. This application is suitable for tradesmen and Electrical Engineers.

LMP Electrical Calculations Software provides a bus bar calculator. So you will be able to easily calculate your bus bar rating, dissipation and the voltage drop. The application also enables you to calculate the current ampere rating, the voltage drop and to view the wire gauges. In all category there are several sub categories available for you to select. LMP Electrical Calculations 2.70.0.4 software is available for free download and 20 day free trial. Just download this 3 mb software and test it.

You can download this software at: http://www.softpedia.com/progDownload/Electrical-Calculations-Download-275.html

Wednesday, March 7, 2012

Electrical engineering Community

Electrical engineering Community is a forum you must visit and register. This forum helps Electrical installation & energy management Sharing technical & practical tips to build an optimum energy system for today and tomorrow. You will find discussions on day to day subjects on Electrical Engineering. I am a daily visitor of this site. Please follow the link below:

engineering.electrical-equipment.org/

Tuesday, March 6, 2012

Electrical calculation software free download

Electrical calculation software free download SIMARIS Software from Siemens is a bless for Practicing Electrical Engineers. This software is available free of cost from Siemens website. The latest version is a bit heavy for download but you can ask for a DVD copy of this software. Let us see what this software will do for us. I am copying exact words from Siemens site:

The SIMARIS software exclusively refers to the DIN VDE and IEC standards and is designed for products and installations for:

  • Medium-voltage power distribution boards

  • Transformers

  • Switching and protection devices

  • Low-voltage power distribution boards

  • Distribution boards

  • Connection elements (cables / busbar trunking systems)

If you are interested please visit the web page and request your Electrical calculation software free download at http://www.automation.siemens.com/mcms/electrical-design-software/en/service-support/simaris-software/Pages/default.aspx

Thursday, March 1, 2012

Electrical Power Engineering Reference & Applications Handbook by K.C. Agrawal a book review.

Electrical Power Engineering Reference & Applications Handbook by K.CElectrical Power Engineering Reference & Applications Handbook. Agrawal a book review. Electrical Power Engineering is a vast subject and people practicing as consultants in this field have to respond to a lot of issues. Nobody can remember all the technical details and reproduce them as and when required. So it is essential to have some books for reference purpose. Electrical Power Engineering Reference & Applications Handbook (ISBN 81- 901642- 5- 2) an upgraded edition of 'Industrial Power Engineering And Applications Handbook' (ISBN 0- 7506 -7351- 6) is worth mentioning in this regard. This Reference & Applications Handbook is a single source of all information needs in the subject area of power engineering. The book is divided in 5 parts: Electric Motors, Drives and Energy Saving, Switchgear Assemblies and Captive (Emergency) Power Generation, Voltage Surges, Over-voltages, Circuit Interrupters and Grounding Practices, Power Capacitors and Reactive Power Controls, Busbar Systems. The latest edition contain about 30% more than the previous edition.Electrical Power Engineering Reference & Applications handbook (ISBN 81-901642-5-2) is a 5-part comprehensive guide to all aspects of Electric Products, Electrical Machines Theory, performance and applications, testing and maintenance using latest IEC, IEEE, NEMA and ANSI Codes

You can buy this book online or from your nearest book seller. Those who want to review their book on this blog may please contact me at goldenweblinks@gmail.com

Tuesday, August 3, 2010

Department of Electrical Engineering, IIT Madras

IIT Madras is one of the most reputed engineering technology institute in India. There are many branches of studies available in this IIT and Department of Electrical Engineering, IIT Madras is known for quality education in under graduate and post graduate levels in various specialized branches of Electrical Engineering. Department of Electrical Engineering, IIT Madras is blessed with well informed faculty and constantly updating syllabus. It is a dream for every student who want to become a good Electrical Engineer to study in IIT Madras. IIT Madras

Department of Electrical Engineering, IIT Madras


The B.Tech Degree programme offered by the Electrical Engineering Department of IIT Madras is a four year degree program and the admission to this programme is through the Joint Entrance Examination (JEE). The students after plus two with science and mathematics can apply. The students of Electrical Engineering discipline go through Circuits, Networks and systems, Measurements, Power Systems, Electrical Machines, Control Systems, Semiconductor Devices, Analogue and Digital electronics, Communications and Signal processing. The courses in IIT is a blend of theory and practice.
Visit the Electrical Engineering Department of IIT Madras and find more about this reputed institution.

Friday, July 30, 2010

Free PDF Electrical Books for Download

The_Marine_Electrical__Electro.pdf The Marine Electrical & Electronics Bible - download at 4shared. The Marine Electrical & Electronics Bible is hosted at free file sharing service 4shared.The book has 388 pages. This is only part of it ,126 pages are available for download.Try this and comment. If you some other sites that offer such free downloads please use the comment column to communicate it with our readers.Electronics_-_Theory_and_Desig.pdf

Electronics - Theory and Design of Electrical and Electronic Circuits - download at 4shared. Electronics - Theory and Design of Electrical and Electronic Circuits is hosted at free file sharing service 4shared.Its a great site with a great stuff.I suggest everyone to try this sites's stuff.Free doesnt meen that the content is substandard. If you some other sites that offer such free downloads please use the comment column to communicate it with our readers. 

Monday, July 19, 2010

Aluminum Conductor Composite Reinforced (ACCR)

Aluminum Conductor Composite Reinforced (ACCR) is a rather new comer to towerline power transmission technology. ACCR can deliver 2 to 3 times the capacity without the risks and delays of major construction projects. On time, in budget, back toACCR service – with proven reliability. Aluminum Conductor Composite Reinforced (ACCR) is overhead transmission conductor like ACSR and ACSS, with higher ampere capacity with less thermal expansion (sag). ACCR can carry two or more times the current of a standard conductor of comparable diameter. It has less weight and sag, but the same strength and can be installed to meet your tension and clearance requirements. This allows you to maximize the capacity of your transmission upgrade using existing structures and rights of way. Compared to a rebuild project, you can get your upgrade done faster and with fewer permitting requirements. ACCR can be used any place standard ACSR conductor. ACCR's core is aluminum-based, rather than steel, it is more conductive than steel core conductors, resulting in lower losses under the same operating conditions. In addition, 3M ACCR comes in a trapezoidal wire design that can improve conductivity up to 28% compared to the same size, round wire ACSR. ACCR Conductors cost around 4 times of the standard conductors. See how easy ACCR is to install by viewing the Installation videos. Click the link below to view the Installation Equipment, Procedures and Hardware videos, as seen at IEEE PES 2008. Installation Equipment, Procedures and Hardware Videos

Friday, July 16, 2010

Latest Design and Engineering software for Engineers

The technology is changing at lightning speed. Now engineers around the world are using latest softwares for design and simulation purpose. Electrical, Civil, Mechanical, Electronic, Production, Protection and Transmission Line Design Engineers can use the latest software. Now see the list of latest software and their use.

ETAP: Calculation related to system fault, short circuit, power flow, current supply, derating factor, earthing system and voltage drop.

CYMCAP: Power cable ampacity calculation per IEC – 60287.

ASPEN: Overhead transmission line and underground cable impedance calculation.

CDEGS: Substation grounding design & Analysis per IEEE-80.

PLS-CADD:A comprehensive program for structural and geometric design of overhead lines including terrain modeling, route selection, manual or automatic minimum cost evaluation, sag tension, clearance, string charts, strength charts, material list generation ‘plan and profile’ drafting.

ALCOA SAG 10:Calculation related to Conductor Sag & Tension, Mechanical load and stresses etc.

STAAD/Pro:A widely accepted general purpose structural analysis and design program for geometric modeling of 2D & 3D frame trusses, plates and various other surfaces which can be generated graphically and with features to generate various kinds of loadings and to perform RCC design, structural steel design, supporting provisions of various international codes.

PLS-TOWER:Complete, integrated computer program for the analysis of Steel Latticed Towers, Communication Towers and Substation Steel Structures.

PLS-POLE:Design of steel monopoles.

PLS-FOOTING:Design of spread footing foundations for Transmission Line towers and substation steel structures foundations.

CAISSON:Design of moment resisting concrete pier foundations for Transmission Line monopoles, small base Substation towers and equipment support structure foundations

ATP (Alternate Transient Program): Insulation coordination study.

SHAFT V.5: Design of axially loaded drilled shafts.

News Trends in High Voltage Transmisison Line Towers Design

Sea this High Voltage Transmission Line Towers designed for Iceland. This tower is prefabricated and erected on concrete structure. Watch the different views. Also read the article titled at High Voltage Transmission Line Towers by Arphenotype! Shre your ideas and participate in the discussions!

Power line transmission

Electrical System Protection

Electrical System Protection is a very important field of study. Most of the design engineers find it difficult to Electrical Protection System protect their equipments from voltage surges, power breakers, fluctuations etc. There are several standard projections used for electrical power systems. The basic protection systems are Overload Protection, Under voltage Protection, Overvoltage Protection, Phase Failure Protection, Phase Sequence Reversal Protection. The first one that is Overload or over current protection is sufficient for majority or equipments. A simple schematic is given in the figure. This is a basic circuit that trigger an opening solenoid and protect the system from overloads. Now you take any circuit around you and make a schematic of the same. Your schematic will look very same as this figure!

Symbols, Units, Abbreviations, and Acronyms

Symbols, Units, Abbreviations, and Acronyms

A.C., a.c.

alternating current

AM

amplitude modulation

D.C., d.c.

direct current

emf

electromotive force

FM

frequency modulation

hp

horse power

Hz

Hertz, unit of frequency

kV

Kilovolt, 1000 volts

kVA

kilovolt-ampere

kW

Kilowatt, 1000 watts

kWh

kilowatt-hour

MVA

megavolt ampere

MVAR

megavolt-ampere reactive

mmf

magnetomotive force

MRI

magnetic resonance imaging

rms

root mean squared

rpm

revolutions per minute

rps

revolutions per second

SCADA

supervisory control and data acquisition

SF6

sulfur hexafluriode

VA

volt-ampere

VAR

volt-ampere reactive

Electrical Engineering Seminar Topic List

I am inserting a huge list of Electrical Engineering Seminar Topic List. This is to show that what the young generation is thinking about Electrical Engineering.

Biomass Fuelled Power Plant
Condition Based Maintenance of Underground Cable Systems
Contact less energy transfer system
Compensation of harmonic currents utilizing AHC
Matrix Inversion Generator
Solar Power Generation
Condition Based Maintenance of Underground Cable Systems
On-Line Detection Of Shorts In Fields Of Turbine Generator Rotor
Flywheel Energy Storage System (FESS)
Modelling of Transformers with Internal Incipient Faults
Digital Testing of High Voltage Circuit Breakers
Surge Current Protection Using Superconductors
PPTC Devices for Protection of Battery Packs
Ceramic Servomotors
Electrostatic Discharge (ESD) Energy chains
Fuel Cells on Aerospace
DDR motors
Low smoke cables
Written-Pole Technology
Bacteria powered fuel cells
High voltage circuit breakers
HVDC Technology and Short Circuit Contribution of HVDC Light
Floating Power stations
Wavelet based Multi function relay for E.H.V Transmission lines
Infrared thermography
fire retardent tapes
Solid Oxide Fuel Cell
Power Quality
Induction Generators for wind generation
Gasifier power Storage
E- bomb
Electro heological Fluids
Jet Stream Windmill
Nanotechnology
Swing Power generators
Bio reactors
Composite Insulators
Power System Contingencies
HVAC system
Process Automation Techniques
Adaptive Piezoelectric energy harvesting circuit
Lightning Protection Zones
Modern Surge Arresters
BiCMOS Technology
Electric Utility Industry .
End-Use Energy Efficiency Potential
Lightning Protection Using LFA-M
Aluminium Alloy Conductors
HalBach array
Surge current protection using superconductors
Magnetic Levitation
Fast quasi-static capacitance extraction using CSurf
Electrical and chemical diagnostics of transformer insulation
Micro Batteries
Magnet less Motors
Seasonal Influence on Safety of Substation Grounding
EL Lightning
Piezoelectric Actuators
Microprocessor Based Alternator Synchronisation
IT Integration in Electrical Engg.
Piezo Electric Motors
Protection Of Transmission Systems By Using The Global Positioning System
Electrostatic precipitator
Green power storage
Micro Turbine Generator System
Flyash Utilization
High-availability power systems: Redundancy options

Reference: http://www.seminarprojects.com/Thread-electrical-engineering-seminar-topic-list#ixzz0tqh0JcJv

Thursday, July 15, 2010

Electrical Engineering Jobs

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Register & Get Multiple Interviews
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Find your new job today. Indeed
indeed.co.in/Electrical-Engineers

Wednesday, July 14, 2010

Recommended Practice for Electrical Equipment Maintenance, 2010 Edition

Prevent costly equipment failures and worker injuries with the latest rules in the 2010 NFPA 70B.

NFPA 70B: Recommended Practice for Electrical Equipment Maintenance helps you develop and carry out an Electrical Preventive Maintenance (EPM) program for all types of equipment and assemblies.

Changes in the 2010 edition include:

* Reorganization of document, including grouping of related topics plus consolidation of testing information
* New material on emergency preparedness and electrical system and equipment restoration
* New recommendations on how to conduct outsourcing of electrical equipment maintenance
* New information on failure modes effects and criticality analysis (FMECA)

Order your copy at http://www.maintenanceresources.com/bookstore/electrical/nfpa-10.htm

Friday, July 9, 2010

5 Important words on electricity

5 Important words on electricity and definitions!
  1. Electric charge – a property of some subatomic particles, which determines their electromagnetic interactions. Electrically charged matter is influenced by, and produces, electromagnetic fields.
  2. Electric current – a movement or flow of electrically charged particles, typically measured in amperes.
  3. Electric field – an influence produced by an electric charge on other charges in its vicinity.
  4. Electric potential – the capacity of an electric field to do work on an electric charge, typically measured involts.
  5. Electromagnetism – a fundamental interaction between the magnetic field and the presence and motion of an electric charge.

Wednesday, July 7, 2010

Outdoor high-voltage AC SF6 breaker made in China

Outdoor high-voltage AC SF6 breaker is used to control EHT Power of the range 110 kV.LWA-126/T3150-40 type outdoor high-voltage AC SF6 breaker is porcelain type SF6 breaker, it adopts a self extinguishing interrupter structure,the
interrupter is located in a insulated porcelain housing and the SF6 gas works as the insulation and arc-extinguishing media, also the springmechanism is equipped; this kind of breaker is widely used inhydro powerstation, city network substation and large power stations,where the breaker controls and protects the power transmission line. This China make product is very cheap and worksatisfactory.

Thisoutdoor high-voltage AC SF6 breaker is fromTianshui Changcheng Switchgear Co.,Ltd (CTCS) is alarge-scale professional company in China`s manufacturing field of transmission and distribution switchgear, is a backbone enterprise ofLanzhou Great Wall Electrical Stock Limited Company.The company located in Tianshui CityIt mainly produces 0.4-126KVswitchgears, electrical components and LV switchgears. The products arewidely used in national large-scale power projects and otherlarge/middle industrial projects such as: petrol-chemical,metallurgy,transportation,mine and construction etc.

Tuesday, July 6, 2010

How to Clean Install Windows 7

How to Clean Install Windows 7 is provided for Electrical Engineers who want to try the latest Operating System from Microsoft. Not only the Electrical Engineers, but other engineers also need this latest operating system. Learn it now before your friends master this gadget.

Windows 7 is there. The first remarks indicate that this operating system is going to stay there for time. You have to install it onWindows-7 your personal computer or laptop very soon. I am here to explain the two valuable resources available for you to install Windows 7 on your computer. These two online tutorials will show you how to do a clean installation with a retail Windows 7. An OEM Windows 7 that comes with your system may show a few different screens than explained here. These two guides are for Windows 7 Ultimate edition and it may help you to install Windows 7 Professional or Windows 7 Home Premium.

The first guide is from About.com. It has a 34 steps plan to install your Windows 7. The steps and screen shots shown in these 34 steps refer specifically to Windows 7 Ultimate edition but will also serve perfectly well as a guide to reinstalling any Windows 7 edition you may have including Windows 7 Professional or Windows 7 Home Premium. It is explained in very simple English and with lot of screen shots. It is an easy walk through the complicated procedure. There are tips available, and external links provided for complicated issues. Read this at Clean Install Windows 7.

The second tutorial is from www.sevenforums.com. The article starts like the reason for installing clean – if you have a computer with no operating system installed, you do NOT want to preserve your data, programs, or system drivers, you want to delete your current operating system and replace it with Windows 7 and you want to create a multi boot system by installing Windows 7 on a separate hard disk partition. The auther made the article very useful and simple. With lot of tips and tricks you can make the best out of your Windows 7. You can try this at Windows 7 - Clean Install Windows 7


Also watch this video


HOWTO format and do a clean install Windows 7

Electrical engineering Community - All Forums