Servo Magazine No.12 - December 2012

Servo Magazine Issue 12 - December 2012 (True PDF)
Servo Magazine Issue 12 - December 2012 (True PDF)
English | 84 pages | True PDF | 13.98 Mb

Distribution Panels

Electrical Power Transmission 1

Electrical Power Transmission system

Electrical power is generated at different generating stations. These generating stations are not necessarily situated at the load center. During construction of generating station number of factors to be considered from economical point of view. These all factors may not be easily available at load center, hence generating station are not normally situated far away from load center.

Instrumentation, Measurement, Circuits and Systems

2012 | ISBN: 3642273335 | PDF | 1048 pages | 25 MB

bThe volume includes a set of selected papers extended and revised from the 2011 International Conference on Mechanical Engineering and Technology, held on London, UK, November 24-25, 2011. Mechanical engineering technology is the application of physical principles and current technological developments to the creation of useful machinery and operation design. Technologies such as solid models may be used as the basis for finite element analysis (FEA) and / or computational fluid dynamics (CFD) of the design. Through the application of computer-aided manufacturing (CAM), the models may also be used directly by software to create "instructions for the manufacture of objects represented by the models, through computer numerically controlled (CNC) machining or other automated

Machine Design - 5 April 2012

True PDF | 86 pages | English | 16.14 MB

The Industrial Electronics Handbook, Second Edition (Five Volume Set)

2011 | ISBN-10: 1439802890 | PDF | 4052 pages | 122 MB

The Industrial Electronics Handbook

Industrial electronics systems govern so many different functions that vary in complexity��from the operation of relatively simple applications, such as electric motors, to that of more complicated machines and systems, including robots and entire fabrication processes.  

Electric & Hybrid Vehicle Technology Magazine - July 2012


True PDF | English | 225 Pages | 86.08 MB

Everyday Practical Electronics - Full Year 2012 Collection

English | True PDF | 12 issues | 310 Mb

MATLAB for Engineers - Applications in Control, Electrical Engineering, IT and Robotics by Karel Perutka

Details of Book: MATLAB for Engineers
Book: MATLAB for Engineers - Applications in Control, Electrical Engineering, IT and Robotics
Authors: Karel Perutka
ISBN: 9789533079141 InTech
Publication Date: Oct 2011

Nuts and Volts - Full Year 2012 Issues Collection

English | True PDF | 12 issues | 227 MB
magazine about electrical and electronics engineering


Description: The problems of system grounding, that is, connection to ground of neutral, of the corner of the delta, or of the midtap of one phase, are covered. The advantages and disadvantages of grounded vs. ungrounded systems are discussed. Information is given on how to ground the system, where the system should be grounded, and how to select equipment for the ground of the neutral circuits. Connecting the frames and enclosures of electric apparatus, such as motors, switchgear, transformers, buses, cables, conduits, building frames, and portable equipment, to a ground system is addressed.

Electrical convertions

How to convert watts to lumens

How to convert electric power in watts (W) to luminous flux in lumens (lm).
You can calculate lumens from watts and luminous efficacy. 
Watt and lumen units represent different quantities, so you can't convert watts to lumens.

Watts to lumens calculation formula

The luminous flux ΦV in lumens (lm) is equal to the power P in watts (W), times the luminous efficacy η in lumens per watt (lm/W):
ΦV(lm) = P(W) × η(lm/W)
lumens = watts × (lumens per watt)

Securing scada systems

 Photo: Securing-scada-systems

ahmed besheer

Book Description
  • Bestselling author Ron Krutz once again demonstrates his ability to make difficult security topics approachable with this first in-depth look at SCADA (Supervisory Control And Data Acquisition) systems

Mobile Networks
bInTeO | 2012 | ISBN: 9535105930 9789535105930 | 183 pages | PDF | 12 MB

Mobile networks require that the applications and protocols that have worked successfully in fixed networks can be used with the same level of quality in mobile scenarios.

Delmar's Standard Textbook of Electricity

2011 | | 1153 pages | PDF | 63.69 Mb

This book designed to teach by blending concepts relating to electrical theory and principles with practical 'how to' information that prepares you for situations commonly encountered on the job. Topics span all the major aspects of the electrical field including atomic structure and basic electricity, direct and alternating current, basic circuit theory, three-phase circuits, single phase, transformers, generators, and motors. Contents
Dedication Page
Introduction: Electrical Occupations
Organization of the Industry
1 SECTION I: Safety, Basic Electricity, and Ohm's Law
Safety Overview

"Automation" ed. by Florian Kongoli

 | 2012 | ISBN: 9535106852 9789535106852 | 558 pages | PDF | 22 MB

This book is the role of Automation in the modern world: Automation is closely related to the modern need for sustainable development in the 21st century.

"New Advances in Vehicular Technology and Automotive Engineering"
2012 | ISBN: 9535106982 9789535106982 | 404 pages | PDF | 21 MB

Handbook of electrical safety

Handbook of electrical safety

Power system analysis and design

English | 2011 | ISBN: 1111425779 | 828 pages | PDF | 22,29 Mb

 The objective of this book is to present methods of power system analysis and
design, particularly with the aid of a personal computer, in su‰cient depth
to give the student the basic theory at the undergraduate level. The approach
is designed to develop students’ thinking processes, enabling them to reach a
sound understanding of a broad range of topics related to power system
engineering, while motivating their interest in the electrical power industry.
Because we believe that fundamental physical concepts underlie creative
engineering and form the most valuable and permanent part of an engineering
education, we highlight physical concepts while giving due attention to mathematical
techniques. Both theory and modeling are developed from simple beginnings
so that they can be readily extended to new and complex situations.



Today’s wind energy industry is at a crossroads. Global economic instability has threatened
or eliminated many financial incentives that have been important to the development of
specific markets. Such economic sponsorship of energy generation is not unique to
renewables; fossil based sources are also subsidized in many different countries. However,
for a technology like wind energy whose markets are still developing, incentives can be
critical for industry growth. Industry proponents have decreed that long-term energy policy
that survives financial swings and changes in government is what is needed to provide the
stability that market investors seek. While this may be the case, in the mean time, the
pressure is on wind industry designers, manufacturers, and operators to seek the most
effectual measures for wind power production.

Mathematical Symbols

Mathematical Symbols

List of all mathematical symbols and signs - meaning and examples.
  • Basic math symbols
  • Geometry symbols
  • Algebra symbols
  • Probability & statistics symbols
  • Set theory symbols
  • Logic symbols
  • Calculus & analysis symbols
  • Number symbols
  • Greek symbols
  • Roman numerals


Power Factor

In AC circuits, the power factor is the ratio of the real power that is used to do work and the apparent power that is supplied to the circuit. The power factor can get values in the range of 0 to 1.
  • Power factor definition
  • Power factor calculation
  • Power factor correction


Small Scale energy Harvesting

Energy harvesting (also known as power harvesting or energy scavenging) is the process by which energy is derived from external sources (e.g., solar power, thermal energy, wind energy, salinity gradients,[citation needed] and kinetic energy), captured, and stored for small, wireless autonomous devices, like those used in wearable electronics and wireless sensor networks.

Learn Electronics with arduino

Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.
Arduino can sense the environment by receiving input from a variety of sensors and can affect its surroundings by controlling lights, motors, and other actuators. The microcontroller on the board is programmed using the Arduino programming language (based on Wiring) and the Arduino development environment (based on Processing). Arduino projects can be stand-alone or they can communicate with software running on a computer (e.g. Flash, Processing, MaxMSP).
The boards can be built by hand or purchased preassembled; the software can be downloaded for free. The hardware reference designs (CAD files) are available under an open-source license, you are free to adapt them to your needs.


Simple Electrical conversion 1

How to convert 1 amp to watts

How to convert electric current of 1 amp (A) to electric power in watts (W).
You can calculate (but not convert) the watts from amps and volts:

1A to watts calculation with voltage of 12V DC

For DC power supply, watts are equal to amps times volts.
watts = amps × volts
watts = 1A × 12V = 12W

1A to watts calculation with voltage of 120V AC

For AC power supply, watts are equal to the power factor times amps times volts.
watts = PF × amps × volts
For resistive load without inductors or capacitors, the power factor is equal to 1:
watts = 1 × 1A × 120V = 120W
For inductive load (like induction motor), the power factor can be approximately equal to 0.8:
watts = 0.8 × 1A × 120V = 96W

Radio electronics

This book aims to provide a wide variety of radio and electronic projects, from something that will take a few minutes to a more ambitious weekend’s worth. Various construction techniques are described, the simplest requiring no more than a small screwdriver, the most complex involving printed circuit boards. Originally published by the Radio Society of Great Britain, the
projects were all chosen to be useful and straightforward, with the emphasis on practicality. In most cases the workings of the circuit are described, and the projects are backed up by small tutorials on the components and concepts employed. In the 21st century it may seem strange that few of the published circuits use integrated circuits (chips).