New Lesson Plans Entry: 'Discussing the future of HR' has just been added to the Lesson Plans area of UsingEnglish.com.

New Lesson Plans Entry: 'HR options discussion' has just been added to the Lesson Plans area of UsingEnglish.com.

This technical article discusses criteria and requirements for designing protection systems for busbars in HV/EHV networks. One of the most critical requirements is reliable busbar relay protection to assure power system integrity during fault conditions. This requirement is further emphasized because... Read more

The post Design issues in HV busbar protection systems (substation topology and DC power supply) appeared first on EEP - Electrical Engineering Portal.

First, let’s say a word or two about the essentials of power distribution systems for our young electrical engineers. An electric distribution system, or distribution plant as it is sometimes called, is all of that part of an electric power... Read more

The post The loop electrical distribution system used to supply bulk loads (industrial plants and buildings) appeared first on EEP - Electrical Engineering Portal.

The countries of the European Economic Area (EEA) have agreed on common minimum regulatory requirements in order to ensure the free movement of products within the EEA. The CE marking indicates that the product works in conformity with the directives... Read more

The post EN61800-3 (IEC1800-3) – Adjustable speed electrical power drive systems appeared first on EEP - Electrical Engineering Portal.

These standards are the whole of the prescriptions on the basis of which machines, apparatus, materials and the installations should be designed, manufactured and tested so that efficiency and function safety are ensured – and all according to the UK Electrical... Read more

The post UK Electrical Industry British Standards (BS) appeared first on EEP - Electrical Engineering Portal.

Flexibility, utilisation value and energy saving are the three main requirements for utility buildings (administration, office and public buildings, schools, hospitals, etc.). Apart from recouping investment costs, so-called life-cycle costs are also becoming increasingly important. These are made up of... Read more

The post Potential Energy Savings In Utility Buildings Using EIB appeared first on EEP - Electrical Engineering Portal.

Jet Pumps are mounted above ground and lift the water out of the ground through a suction pipe. Jets are popular in areas with high water tables and warmer climates. There are two categories of jet pumps and pump selection... Read more

The post Jet pumps used for private well systems or low flow irrigation applications appeared first on EEP - Electrical Engineering Portal.

The problem of energy accessibility and production on Mars is one of the three main challenges for the upcoming colonisation of the red planet. The energetic potential on its turn is mainly dependent on the astrophysical characteristics of the planet.... Read more

The post Want to live and use energy on Mars? Why not? appeared first on EEP - Electrical Engineering Portal.

Photovoltaic markets can be classified based on the end-use application of the technology. The most common PV projects are off-grid applications. Water pumping also represents an important application of PV, particularly in developing countries. The largest long-term market potential for... Read more

The post Photovoltaic End-Use Application Markets appeared first on EEP - Electrical Engineering Portal.

The creation and delivery of power is one basic infrastructure expected by all modern industrial societies. Power distribution basics started in the US in the early 1900s when the first AC grid was established. Since 12 independent power grids were... Read more

The post Comparison of major power grid failures in US and around the world (1) appeared first on EEP - Electrical Engineering Portal.

Continued from first part: Comparison of major grid failures in United States and around the world (part 1) On the International side, about 1/5 of the power outages (9 of 44) were not given a cause in the reports. A... Read more

The post Comparison of major power grid failures in US and around the world (2) appeared first on EEP - Electrical Engineering Portal.

For the last several decades, every engineering task related to processing control is realized by the use of PLC (Programmable Logic Controller). If we are talking about induction motor control, which is the most common case, usually a VFD (Variable... Read more

The post Learn how to use PLC and VFD for pump control: Power and control circuits analysis appeared first on EEP - Electrical Engineering Portal.

"Dark Steering" flirts subtly with the sounds of modern dubstep, mixing them with atmospheric squeals and detailed drum programming. The result is an unbelievably fitting soundtrack for a life-or-death motorcycle race through neon-lit city streets.

Passengers will be able to use their mobile phones as tickets from this spring London, 23rd April 2014 – Thames Clippers today announced that they have signed a five year contract with Masabi, the leader in mobile ticketing and payments for transit, to bring smartphone ticketing to its River Bus […]

The post Thames Clippers and Masabi to Launch Mobile Ticketing on Central London River Bus Services appeared first on Masabi.

To explain in very simple words, I would say that SCADA is a bunch of equipment that provides an operator at a remote location with sufficient information to determine the status of particular equipment/process and make actions without being physically... Read more

The post Five ingredients that make SCADA operation delicious appeared first on EEP - Electrical Engineering Portal.

Like it or not, hard times are in front of us, by all means. I won’t deal the hard times now, but instead, I’ll shortly say that it’s all about the energy resources and who owns them. It’s also not... Read more

The post Best practice in hard times: How to safeguard the hundreds and thousands of substations appeared first on EEP - Electrical Engineering Portal.

January 12
Fourth Grade Community Project: Going to the Museum
Encourage your students to research and visit a museum in your community with these activities.

Since the subject of this article is somewhat not-that-easy to understand, I suggest starting with the basics of the synchronous motor. In the synchronous motor, the basic magnetic field is obtained by direct current excitation rather than through the air... Read more

The post The art of achieving synchronous motor transient stability (especially in weak grids) appeared first on EEP - Electrical Engineering Portal.

Around twenty five percent of the energy that is consumed by electric motors worldwide is accounted for by pumping systems, and certain industrial facilities use anywhere from twenty-five to fifty percent of the total electrical energy available. There are significant... Read more

The post The essentials of pumping, pump speed and flow rate control that engineers MUST know appeared first on EEP - Electrical Engineering Portal.

At low voltage level, SCADA applications are usually used for process control and monitoring of equipment. Furthermore, incoming circuit breakers or switch disconnectors inside large LV switchboards may also be operated remotely, by the command given from the SCADA working... Read more

The post Field devices and signals used for LV SCADA operations appeared first on EEP - Electrical Engineering Portal.

On the outset, it may be due to wheels as in the case of an automobile. What actually drives these movements, though, are motors. Additionally, many household appliances such refrigerators, air-conditioners, ventilation fans, washers, driers and so many others all... Read more

The post Yup, it’s the motor drive that makes systems in motion all around us appeared first on EEP - Electrical Engineering Portal.

This technical article analyzes the safety requirements against indirect contact employed in particularly special medical locations (e.g., hospitals, medical, and dental practices, etc.), where environmental conditions may increase the risk of indirect contact and therefore the electroshock, precisely microshock. Generally... Read more

The post The ground is not just ground! At least not in hospitals, medical, and dental practices appeared first on EEP - Electrical Engineering Portal.

There are at least two safety requirements that medium-voltage switchgear MUST fulfil: an interlocking system and an arc protection system. Yes, these two systems are crucial in terms of safety because they protect not only the operator and other substation... Read more

The post Switchgear interlocking system and arc protection that you MUST consider in the design appeared first on EEP - Electrical Engineering Portal.

When we talk about the power system, there are dozen of essential terms and definitions. One of the most important is for sure that any AC power system begins with a generating source. Electric generators are devices that convert energy... Read more

The post The essentials of power-generation systems you MUST know in the middle of the night! appeared first on EEP - Electrical Engineering Portal.

You should know that single-phase motors are rarely rated above 5 kW. Fractional-kilowatt motors, most of which are single-phase, account for 80−90% of the total number of motors manufactured and for 20−30% of the total commercial value. A typical modern... Read more

The post The most used types of single-phase motors in the world appeared first on EEP - Electrical Engineering Portal.

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In 2004, I embarked on an intensive nine-month training program in protection and instrumentation. This experience laid the foundation for my deep understanding of substation protection systems, combining both theoretical knowledge and practical application. The first protection scheme we delved... Read more

The post Mastering Distance Protection and Calculations Part 1: Advice and Serious Warnings appeared first on EEP - Electrical Engineering Portal.

Star-delta starting is frequently employed with high horsepower motors to mitigate inrush current during the start-up stage and to reduce starting torque. Star-delta starting involves initially connecting the motor stator windings in a star configuration during the motor startup phase,... Read more

The post Star-delta starting used with large horsepower motors appeared first on EEP - Electrical Engineering Portal.

Booking is now open for the Film Industry Conference 2011! Visit the website for further details and to book your place.

Film: 21st Century Literacy are surveying teachers who use film to help them teach. Eligible teachers who complete the survey by 15 July will go into a free prize draw to win an iPad 2.

We believe viewing a wide variety of films is an essential part of young people’s film education. What film titles do you think all children and young people should see? We welcome your suggestions!

Film Education would like to invite you to a FREE screening of 'Coriolanus' in Edinburgh

Interactive online resource on Ralph Fiennes’s adaptation of Shakespeare’s Coriolanus, exploring the film alongside extracts from the play text. Suitable for use in English at GCSE and equivalent.

Online resource for teachers of KS3, KS4 & KS5 who are interested in using Holocaust related films to commemorate Holocaust Memorial Day.

Supported by Film Distributors' Association, we are running two career days for students covering aspects of the film industry from acquisitions to marketing and PR.

Information on City Screen's school screenings and talks for Holocaust Memorial Day

UK wide screenings of the film, Good to commemorate Holocaust Memorial Day in partnership with the Holocaust Educational Trust

Book now for this free screening for schools in Greenock

Free secondary school screening as part of Cineschool 2013

A sixteen-year-old boy insinuates himself into the house of a fellow student from his literature class and writes about it in essays for his French teacher.

Exclusive photos and clips from our Q&A with In the House director Francois Ozon

For the last sixty years, gas-insulated substation (GIS) has been used in applications related to substations all over the world, and this use of the technology is becoming an increasingly common asset for those who make use of substations. GIS... Read more

The post Choosing between AIS and GIS substation design: Factors you MUST take into consideration appeared first on EEP - Electrical Engineering Portal.

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The space requirements of a power substation depend on the equipment to be housed, and on whether a new building can be erected for it or it has to be fitted into an existing building. In the case of an... Read more

The post LV/MV power substation equipment and wiring requirements you must understand appeared first on EEP - Electrical Engineering Portal.

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