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Why was John concerned to be perfect, ...



  • Ask a Teacher

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"The disease originated in Britain" not "The disease originated."



  • General Language Discussions

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Teacher Training -Grammar Based PPP

As an aside from my usual topics about using computers for language education, recently I am involved in a teacher training programme and would like to share an article I am working on to assist new teachers to plan a lesson.

As part of the course, trainees need to present evaluation lessons using a grammar based syllabus prepared with PPP.

I hope this will be interesting to other teacher trainers and helpful to trainees, and I would like to hear your comments and criticisms.




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Once Upon A School - TED Prize Winner

I recently watched an inspiring talk given as part of the TED 2008 conference by Dave Eggers, a philanthropist and teacher-at-large (as they describe him). The talk shows ways in which dedicated one-to-one teaching can be provided to pupils who would not normally have access to this sort of personal tuition. What's more, the students seem to lap it up.

The successful and growing network of professionals volunteering their time to shine their light on local students of all ages is only part of the story. His novel approach to teaching and the way he makes learning fun should be an inspiration to all of us.

As Time puts it: "Many writers, having written a first best-seller, might see it as a nice way to start a career. He started a movement instead."




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Teachermate -Handheld Console for Educational Games

 

An Illinois, non-profit organisation called Innovations for Learning has released a handheld cosole, like a Game Boy or Nintendo DS designed for education and targeted at kindergarten and elementary students. Despite its simplicity and lack of software, this device has a lot of potential for English language education.




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English, a Crazy Language Indeed!

For my first blog post this year I thought I'd provide you with a couple of light-hearted and entertaining looks at the English language. The first shows you just how confusing the language can sometimes be, whilst the second demonstrates why some suggest that English spelling should be reformed.




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The essentials of automation applied to distribution systems via PLCs, SCADA, IEDs, and RTUs

Nowadays, it seems that everything we do tends to be somehow automated. The very same is happening in electrical distribution systems. The distribution system at the medium voltage (MV) or low voltage (LV) levels is designed using different structures such... Read more

The post The essentials of automation applied to distribution systems via PLCs, SCADA, IEDs, and RTUs appeared first on EEP - Electrical Engineering Portal.




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Schematics and docs needed for communication systems of substation protective relaying system

Communication systems of electric utilities have become increasingly critical to electric system protection, operation, and maintenance. For fast tripping and clearing of system faults, communication-aided relaying has become a common protection scheme, particularly in line protection. Control centers depend on... Read more

The post Schematics and docs needed for communication systems of substation protective relaying system appeared first on EEP - Electrical Engineering Portal.





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The problem of induced voltages in control cables in high voltage substations

Cabling in power substations is very important due to the fact that they are the longest parts of a system and therefore act as efficient antennas that pickup and or radiate noise. In HV substations, there are different kinds of conductors... Read more

The post The problem of induced voltages in control cables in high voltage substations appeared first on EEP - Electrical Engineering Portal.




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Twelve high voltage cable construction techniques used worldwide

This technical article discusses twelve different methods for laying high voltage cables. Out of the ten, four are deemed conventional and eight are deemed progressive. Many various utilities and companies all across the globe are making use of them, though... Read more

The post Twelve high voltage cable construction techniques used worldwide appeared first on EEP - Electrical Engineering Portal.




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GE to sell part of its nuclear business to EDF, which aims to ramp up construction

GE and EDF signed an exclusive agreement for EDF to acquire part of GE Steam Power’s nuclear power business.




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ERCOT: What’s changed since Uri and what weaknesses remain

Everyone agrees Winter Storm Uri was a wake-up call. While the ERCOT grid operated successfully through Winter Storm Landon, some work remains to ensure the grid doesn’t snooze during the next major winter weather event.




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DOE launches credit program to help preserve nation’s nuclear fleet

The U.S. Department of Energy (DOE) is seeking input on a newly established $6 billion program aimed at supporting the continued operation of U.S. nuclear reactors.




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Interested in Taking a MOOC? Try Class Central

Have you been interested in taking a MOOC (Massive Open Online Course), but don't know where to find one or how to get started?

Class Central is a free MOOC aggregator that provides links to a wide variety of courses from universities like Stanford, MIT, Harvard, etc. (offered via Coursera, Udacity, edX, NovoED, and others).

The site allows you to search for MOOCs according to the course name, instructor, subject, start date, length of course, and course provider. Class Central also offers a "MOOC Tracker" service that will send you email notifications when a MOOC that is of interest to you becomes available.

MOOCs are a great idea for your students if your school doesn't offer advanced courses for a particular subject and they are also great resources for instructors and others. Try one and I think you will find out how they can be a benefit to you. I did!




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The Benefits of Educational Quizzes and Tests

John Kleeman shared on Questionmark's Blog the ten benefits of quizzes and tests in educational practice as proposed by psychology experts Henry L. Roediger III, Adam L. Putnam and Megan A. Smith in a recent paper, “Ten Benefits of Testing and Their Applications to Educational Practice”.

Here is John's summary and understanding of the paper:

1. Retrieval aids later retention. There is clear evidence from psychological experiments that practicing retrieval of something after learning it, for instance by taking a quiz or test, makes you more likely to retain it for the long term.
2. Testing identifies gaps in knowledge.
3. Testing causes students to learn more from the next study episode. Essentially it reduces forgetting which makes the next related study area more productive.
4. Testing produces better organization of knowledge by helping the brain organize material in clusters to allow better retrieval.
5. Testing improves transfer of knowledge to new contexts. There are several experiments referenced in the paper where tests and quizzes help transfer and application of knowledge.
6. Testing can facilitate retrieval of material that was not tested. Surprisingly there are circumstances where quizzes or tests, particularly if delayed, can help people retrieve/retain information that was related to that asked but not actually asked in the questions.
7. Testing improves metacognitive monitoring – by giving students scores or self-assessments, they can better predict their knowledge and be more confident about what they know and what they need to know.
8. Testing prevents interference from prior material when learning new material. If you have a test after learning one set of material before learning another set of material, it can make it less likely that the second session will
9. Testing provides feedback to instructors and lets them know what is learned or what is not.
10. Frequent testing encourages students to study. Having frequent quizzes and tests motivates study and reduces procrastination.
 You can see their paper “Ten Benefits of Testing and Their Applications to Educational Practice” in Psychology of Learning and Motivation, Vol 55. It’s also available for download on Professor Roediger’s publications page, in the list of papers from 2011, at http://psych.wustl.edu/memory/publications/.




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Glean - Searching the Web for Educational Videos

I wanted to tell you about a service I recently discovered called Glean.

Glean searches the web for educational videos (lessons) in math and science and then structures and organizes them (setting, pace, teaching style, grade level, etc.), tags them by educational standard and adds interactive tools, i.e. Q&A and practice exercises.

As you provide feedback, Glean selects the best video lessons for you based on your learning styles and preferences.


Glean - Exploring the best video lessons in education




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Tips on Reducing Test Anxiety for Online Test-Takers

I just read a great post by John Kleeman on the Questionmark Blog that I wanted to share with you concerning test anxiety. We have previously discussed test anxiety (here and here), but it is interesting to read Kleeman's take on the difference in test anxiety between online and paper and pencil assessments. Here is the post in its entirety:

I’ve been reading about test anxiety (concern or worry by participants sufficiently severe that it impacts test performance). I’d like to share some tips on how online assessment sponsors can reduce its likelihood.

When creating and delivering tests, you seek to accurately measure knowledge, skills or abilities. Often you want to check competence or mastery for workplace or compliance reasons. If some of your participants have severe test anxiety, this doesn’t just disrupt them, it makes your test less accurate in measuring real performance. You might end up failing someone who is competent, just because anxiety affects their test performance.

Many studies (for example here) report that online tests cause less test anxiety than paper ones. Here are some suggestions on reducing test anxiety:

1. Some people have anxiety about a test because they haven’t mastered the subject being tested. Provide a clear description of what each test covers before the time of the test, and provide study resources or instruction to allow people to master the subject.
2. Test anxiety can also feed on unknowns, for instance on unfamiliarity with the test or believing untrue myths. Share information about the test’s purpose and what you do to make it fair. Also share information about the content: how many questions, how the scoring works, how much time is available and so on. Explain what happens if someone fails – for instance is it possible to retake?
3. It’s hugely valuable to provide practice tests that participants can try out before the real test. This will tell them where they are strong and weak and allow them to gain confidence in a less stressful environment prior to the real test. See my article 10 reasons why practice tests help make perfect exams for other reasons why practice tests are useful.
4. Give participants an opportunity to practice using the same type of computer, mouse, keyboard and user interface as will be used for the real test. This familiarizes them with the test environment and reduces potential anxiety, particularly for those who are less computer literate. If you are using Questionmark to deliver the test, make practice sessions available with the same template settings and the same types of questions. (Sometimes this is done with a fun quiz on a different topic, just to get people accustomed to the user interface.)
5. If you provide guidance to test-takers, point to self-help resources for people who have test anxiety. ETS provide a good resource here for instance. Another resource from the University of California is here.
6. Some self-help resources suggest breathing exercises or other exercises people can follow to reduce tension for people who are anxious about tests. Provide an environment where this is practical and train your test administrators and proctors about the prevalence of test anxiety.
7. If you have a way of encouraging test takers to sleep, take exercise and eat healthily, all these things aid a rational approach to taking a test and reducing anxiety.
8. If it works in your programme, consider whether it’s worth having a series of tests rather than a single test, so there is not a single “make or break” moment for participants. A series of tests can have other benefits too. It makes cheating harder, and by spreading out learning and revision, it can make participants retain the learning better.
9. People with disabilities are more likely to suffer test anxiety. Ensure that your program of accommodations takes this into account. See this helpful article on reducing test anxiety for people with disabilities.
10. Above all, create good quality, fair tests. If you follow good practice in authoring your questions and assessments, then there is less to be anxious about, as the test will be a good measure of performance. See Questionmark’s white paper “Five Steps to Better Tests” for some helpful advice in creating tests.
Many Questionmark users provide very effective practice quizzes and tests which help reduce test anxiety, and I hope these tips are helpful, too.

I’d love to hear additional input or suggestions.
Thanks again to John and Questionmark for allowing us to share their thoughts on assessment!




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OSU - CareerTech Digital Forum: Educating for Global Coompetitiveness

Oklahoma State University and the Oklahoma Department of Career and Technology Education invite you to watch their digital forum entitled "Educating for Global Coompetitiveness" on Friday, June 13, 2014 (Speakers are from 8:30 a.m. - 12:15 p.m. CST).

Featured speakers are OSU President Burns Hargis, CareerTech State Director Dr. Robert Sommers, Tom Vander Ark, and David Cillay.

I've had the opportunity to previously meet and discuss customized learning with Tom Vander Ark, author of Getting Smart: How Digital Learning is Changing the World and CEO of Getting Smart, a education advocacy firm, but I'm excited to hear his newest thoughts on the subject and how learning is becoming more competency-based.

Dr. Cillay, Vice President of WSU Global Campus, led the 2012 launch of the Global Campus, which includes WSU’s online degree program. His responsibilities include expanding WSU’s market share, supporting faculty in technological innovation and using e-learning tools to ensure that WSU remains open and accessible. I'm also excited to learn from this presentation as it should add great value to what we are trying to accomplish with digital delivery at the Oklahoma Department of Career and Technology Education.

Please join the discussion on Twitter at: #DLFTalk and click here to watch this free live event!




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The Educator's Guide to Hashtags

Follow us on Twitter!  @CareerTechTest
Whether you're a social media novice or not, hashtags may seem confusing and inessential. These short links (hashtags) preceded by the pound sign (#) are integral to the way we communicate online and it's important to know how to use them.

Can hashtags be fun? Absolutely!

On Twitter, the pound sign (or hash) turns any word or group of words into a searchable link. This allows you to organize content and track discussion topics based on those keywords. So, if you want to post about the NFL Super Bowl, you would include #SuperBowl in your tweet to join the conversation (or simply search for the hashtag to follow the discussion). Clicking on a hashtag will allow you to see all the posts that mention the subject in real time.

I also recommend using a social media management platform, such as HooteSuite, TweetDeck, etc., where you can create columns with hashtag topics.  I like the ability to monitor several discussions, i.e. #edchat, #lrnchat, #careerteched, at once and all on the same screen.

I've created a list of popular educational hashtags and tried to categorize them for you (see below). It definitely isn't all inclusive, but it's a good starting point and I hope you will share any new educational hashtags you find interesting and helpful!  (Also, hashtags are now a staple to social media and their use has been extended to other social media platforms.)


Popular Educational Hashtags


Hashtag Category

Career and Technology Education
#careerteched
#CTE
#vision15



College
#highered



Curriculum
#cchat



Distance Education
#disted
#elearning
#k12online
#mlearning
#onlinelearning



Groups and Chats
#edchat Educational Technology
#educhat Education Chat
#lrnchat Social Media and Education
#oklaed Oklahoma Education Chat



Instruction/Learning
#blendchat Blended Learning
#blendedlearning Blended Learning
#education
#elearning Electronic Learning
#flipclass Blended Learning
#GBL Game-Based Learning
#ntchat New Teachers
#onlinelearning Blended Learning
#pbl/#pblchat Project-Based Learning
#studentcentered Blended Learning
#teachered
#teachers



Language
#bilingual
#efl English as a Foreign Language
#ell English Language Learning
#esl English as a Second Languae
#tesol Teaching English to Speakers of Other Languages



Leadership
#edleadership
#eduleaders



Resources
#education
#educational videos
#educationresources
#learning
#lessonplans
#library
#research
#teachers
#TLChat Twitter Librarians
#TT Teacher Tuesday where educators suggest others to follow



Special Needs
#gifted Gifted Education
#GTChat Gifted Education
#spedchat Special Education



Science
#STEM



Technology
#1:1
#apps
#blendchat Blended Learning
#BYOD Bring Your Own Device
#EdApps Educational Apps
#edtech Educational Technology
#edtechchat Educational Technology
#elearning Electronic Learning
#ipadchat iPad
#iNACOL International Association of Online Learning
#iste International Society for Technology in Education
#mlearning Mobile Learning
#mobile Mobile Learning
#slide2learn iDevices and Learning
#vitalcpd Effective Use of Technology in the Classroom
#web20






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Blended Learning and Career and Technology Education - Part I: The Definition


In this four-part series, I’ll define blended learning, discuss the models of blended learning, the implications for career and technical education, and how the Curriculum, Assessment, and Digital Delivery (CADD) areas of the Oklahoma Department of Career and Technology Education can assist in the implementation of blended learning.

Technology has created a personalized access to the world where we can connect and learn… where we can create and share.  Almost every aspect of our lives have been changed by technology, except... education.

Over the last few years, I’ve entered into blended learning discussions with various people, including educators, and I’m always surprised at their perception of blended learning.  Many believe blended learning occurs when any type of computer-based learning takes place within the classroom.  In many instances, I would define what is occurring as technology-rich instruction, but there is a difference.

Blended learning is the combination of online learning and brick and mortar schools with teachers who enable students to learn at their own pace.  Why is this important?  Because many students learn in different ways and this allows each student to optimize their learning.  Quite simply, the purpose of blended learning is to take the best of traditional education and blend it with the power of online learning which allows for a more personalized and interactive learning experience.  Each teacher has the opportunity to review data, in the moment, and determine where the student is at and to form instruction for the next period or the next day.  Blended learning also puts the student in charge of their own learning which, to me, is a very valuable lesson in itself.

According to the Clayton Christensen Institute for Disruptive Education, blended learning “goes beyond one-to-one computers and high-tech gadgets. Blended learning involves leveraging the Internet to afford each student a more personalized learning experience, including increased student control over the time, place, path, and/or pace of learning.

The definition of blended learning is a formal education program in which a student learns:


at least in part through online learning, with some element of student control over time, place, path, and/or pace;




at least in part in a supervised brick-and-mortar location away from home;




and the modalities along each student’s learning path within a course or subject are connected to provide an integrated learning experience.”

See more at: http://www.christenseninstitute.org/blended-learning/#sthash.AWqDXtoh.dpuf

The key difference between blended learning and other forms of education is on its emphasis on personalized learning.  The International Association for Online Learning (iNACOL) defines personalized learning as, “Tailoring learning for each student’s strengths, needs and interests–including enabling student voice and choice in what, how, when and where they learn–to provide flexibility and supports to ensure mastery of the highest standards possible.” As you can see, the two definitions overlap, but blending learning adds online learning and leveraging the internet to personalize an individual’s learning experience.

Next- Blended Learning and Career and Technology Education - Part II: Blended Learning Models




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Blended Learning and Career and Technology Education - Part II: Blended Learning Models


In this four-part series, I’ll define blended learning, discuss the models of blended learning, the implications for career and technical education, and how the Curriculum, Assessment, and Digital Delivery (CADD) areas of the Oklahoma Department of Career and Technology Education can assist in the implementation of blended learning.

As I mentioned in the first post in this series, technology has created a personalized access to the world where we can connect and learn… where we can create and share.  Almost every aspect of our lives have been changed by technology, except... education.

I believe blended learning can have a profound effect upon career and technology education in many instructional ways which will be discussed in the next post.  There are certain elements of blended learning that already occur in CTE and some may be doing an excellent job as I write this, but I’m not aware of research that helps decide if one model works better with any certain occupational area (if you know of any research in this area, PLEASE SHARE!!).

The Clayton Christensen Institute for Disruptive Education defines blended learning as “a formal education program in which the student learns:

(1) at least in part through online learning, with some element of student control over time, place, path, and/or pace;

(2) at least in part in a supervised brick-and-mortar location away from home;

(3) and the modalities along each student’s learning path within a course or subject are connected to provide an integrated learning experience.”

The Models 

The majority of blended-learning programs resemble one of four models: Rotation, Flex, A La Carte, and Enriched Virtual. The Rotation model includes four sub-models: Station Rotation, Lab Rotation, Flipped Classroom, and Individual Rotation.

1. Rotation model — a course or subject in which students rotate on a fixed schedule or at the teacher’s discretion between learning modalities, at least one of which is online learning. Other modalities might include activities such as small-group or full-class instruction, group projects, individual tutoring, and pencil-and-paper assignments. The students learn mostly on the brick-and-mortar campus, except for any homework assignments.

a. Station Rotation — a course or subject in which students experience the Rotation model within a contained classroom or group of classrooms. The Station Rotation model differs from the Individual Rotation model because students rotate through all of the stations, not only those on their custom schedules.

b. Lab Rotation – a course or subject in which students rotate to a computer lab for the online-learning station.

c. Flipped Classroom – a course or subject in which students participate in online learning off-site in place of traditional homework and then attend the brick-and-mortar school for face-to-face, teacher-guided practice or projects. The primary delivery of content and instruction is online, which differentiates a Flipped Classroom from students who are merely doing homework practice online at night.

d. Individual Rotation – a course or subject in which each student has an individualized playlist and does not necessarily rotate to each available station or modality. An algorithm or teacher(s) sets individual student schedules.

2. Flex model — a course or subject in which online learning is the backbone of student learning, even if it directs students to offline activities at times. Students move on an individually customized, fluid schedule among learning modalities. The teacher of record is on-site, and students learn mostly on the brick-and-mortar campus, except for any homework assignments. The teacher of record or other adults provide face-to-face support on a flexible and adaptive as-needed basis through activities such as small-group instruction, group projects, and individual tutoring. Some implementations have substantial face-to-face support, whereas others have minimal support. For example, some Flex models may have face-to-face certified teachers who supplement the online learning on a daily basis, whereas others may provide little face-to-face enrichment. Still others may have different staffing combinations. These variations are useful modifiers to describe a particular Flex model.

3. A La Carte model — a course that a student takes entirely online to accompany other experiences that the student is having at a brick-and-mortar school or learning center. The teacher of record for the A La Carte course is the online teacher. Students may take the A La Carte course either on the brick-and-mortar campus or off-site. This differs from full-time online learning because it is not a whole-school experience. Students take some courses A La Carte and others face-to-face at a brick-and-mortar campus.

4. Enriched Virtual model — a course or subject in which students have required face-to-face learning sessions with their teacher of record and then are free to complete their remaining coursework remote from the face-to-face teacher. Online learning is the backbone of student learning when the students are located remotely. The same person generally serves as both the online and face-to-face teacher. Many Enriched Virtual programs began as full-time online schools and then developed blended programs to provide students with brick-and-mortar school experiences. The Enriched Virtual model differs from the Flipped Classroom because in Enriched Virtual programs, students seldom meet face-to-face with their teachers every weekday. It differs from a fully online course because face-to-face learning sessions are more than optional office hours or social events; they are required.



Next- Blended Learning and Career and Technology Education - Part III: Blended Learning Implications for CTE




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Blended Learning and Career and Technology Education - Part III: Implications for Career and Technical Education


In this four-part series, I’ll define blended learning, discuss the models of blended learning, the implications for career and technical education, and how the Curriculum, Assessment, and Digital Delivery (CADD) areas of the Oklahoma Department of Career and Technology Education can assist in the implementation of blended learning.

Here are several ways that blended learning can have a profound effect upon career and technology education:

Personalized instruction – Blended learning allows for a more personalized and interactive learning experience by putting the student in charge of their own learning.  Taking the best of traditional education and blending it with the power of online learning will provide the teacher an opportunity to review data, in the moment, determine where the student is at and to form instruction for the next period or the next day.

Increased monitoring – The use of a student information, assessment, and gradebook systems that link to the LMS provides instant feedback on assignments and assessments.  This allows the instructor to spend time reviewing student data, adjust instruction, and provide additional classroom or individual instruction. 

Open entry/Open exit – Blended learning fits nicely with competency-based learning and the concept of open entry/open exit.  Personalized instruction and increased monitoring will allow the instructor to more accurately determine when tasks and competencies are achieved.

Increased enrollments – Depending on the blended learning model and the CTE program being offered, enrollments could potentially be increased.

Increased performance gains – “The Rise of K–12 Blended Learning - Profiles of emerging models” by Heather Staker profiles 40 educational entities. Not every school reported gains and some thought it was too early to verify results, but many posted positive gains when compared to the traditional classrooms within the same district.  For example:

“School of One - Students in summer 2009 acquired new math skills at a rate estimated to be
seven times faster than peers. Students in spring 2010 showed gains that, when
annualized, would equate to 1/2 to 2/3 of an additional year of gain. Students in
spring 2010 showed significant gains across all academic quartiles.”

Other potential benefits from this study include increased retention rates, an increase in teacher/parent contacts, increased course completion rates, a strengthening of curriculum offerings, and lower instructional costs.

As you can see, blended learning can have the potential to benefit the student, the instructor, and the parents in a careertech setting.  Again, I’m not aware of any research that helps decide if one model works better with any certain occupational area (if you know of any research in this area, PLEASE SHARE!!).




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Blended Learning and Career and Technology Education - Part IV: Implementing Blended Learning With Resources from the Oklahoma Department of Career and Technology Education



In this four-part series, I’ll define blended learning, discuss the models of blended learning, the implications for career and technical education, and how the Curriculum, Assessment, and Digital Delivery (CADD) areas of the Oklahoma Department of Career and Technology Education can assist in the implementation of blended learning.

Photo courtesy of the Clayton Christensen Institute
Blended learning is a shift to an online instructional delivery for a portion of the day to make students, teachers, and schools more productive, both academically and financially.  We all know there’s no single right approach to building the “perfect” model for blended learning as communities have different resources, classrooms, computers, schedules, and many other unique needs.  A school doesn’t always have the resources or the expertise to select and purchase a learning management system (LMS), design lessons, or write assessments, but there are available resources.

Did you know that the Curriculum, Assessment, and Digital Delivery areas of the Oklahoma Department of Career and Technology Education can assist in the implementation of blended learning?  The National Technology Plan acknowledges the challenges of raising college and career-ready standards without a significant investment of new funding so check out our online catalog and search the following links for additional information and see how we can assist you in blending digital and teacher led instruction to personalize learning for each student.







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Some of the Best Educational iPad and Android Apps for Teachers


Educational Technology and Mobile Learning provides a list of some of the best iPad apps curated for learning and instructional purposes.

The list is divided into 19 sections with each containing a list of apps for a specific need. The sections include apps that facilitates:

  1. presentation
  2. screencasting
  3. video creation
  4. file storage
  5. whiteboard
  6. PDF annotation
  7. audio recording
  8. note-taking
  9. blogging
  10. book creation
  11. comic apps
  12. digital storytelling apps
  13. apps for grading
  14. mindmapping apps
  15. portfolio apps
  16. apps for creating posters
  17. apps for creating timelines
  18. apps for creating word clouds
  19. speech-to-text apps
 Educational Technology and Mobile Learning also provides a list of 10 indispensable Android apps for teachers. The list is curated from the top trending apps in the education section of Google Play store. The listed apps are as follows:
  1. Book Creator
  2. Handouts
  3. Remind
  4. Google Keep
  5. ClassDojo
  6. Nearpod
  7. Socrative Teacher
  8. Edmodo
  9. Google Classroom
  10. Explain Everything




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Auxiliary DC power system used for fault detection, trip coils and remote operation

The auxiliary DC control power system is considered the most crucial element of a protection, control, and monitoring system. The failure of the direct current (DC) control power can result in the inability of fault detection devices to identify faults,... Read more

The post Auxiliary DC power system used for fault detection, trip coils and remote operation appeared first on EEP - Electrical Engineering Portal.




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Five power quality devices that every commercial plant must have installed

Nowadays everybody speaks about power quality. For many reasons, I would say. Electrical energy is now polluted more than ever, and consumers are more sensitive to power disruptions and fluctuations than a small flower to the stronger wind. But, it... Read more

The post Five power quality devices that every commercial plant must have installed appeared first on EEP - Electrical Engineering Portal.




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Practical design knowledge in harmonics distortion and power factor correction (PFC)

Nowadays, if you do not consider harmonics distortion when designing a new network, you missed the whole point of the network design. Yes, really. The sooner you realize that harmonics problems are on the rise, the better. Modern power networks... Read more

The post Practical design knowledge in harmonics distortion and power factor correction (PFC) appeared first on EEP - Electrical Engineering Portal.




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8 NEC Basic Feeder Circuit Sizing Requirements

Once the branch circuit loads are calculated, the feeder circuit loads may be calculated by applying demand factors to the branch circuit loads. General Lighting Loads (Article 220.42) Show window or track lighting (Article 220.43) Receptacles in other than dwelling... Read more

The post 8 NEC Basic Feeder Circuit Sizing Requirements appeared first on EEP - Electrical Engineering Portal.





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Parallel switching phenomenon when MV/HV circuit breakers interrupt a shared fault current

Parallel switching occurs when two or more circuit-breakers are tripped to interrupt a shared fault current. This is typically the case for such bus arrangements as a double breaker, breaker-and-a-half, breaker-and-a-third, and ring buses. Ideally, all of the circuit-breakers should... Read more

The post Parallel switching phenomenon when MV/HV circuit breakers interrupt a shared fault current appeared first on EEP - Electrical Engineering Portal.




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Mastering stability test of power transformer: Differential and Restricted Earth Fault (REF) protection

This technical article discusses the essentials of transformer differential protection and restricted earth fault protection schemes, contrasting the two and elaborating on why the latter is necessary. Furthermore, it reveals the outcomes of stability tests performed on a 502 MVA... Read more

The post Mastering stability test of power transformer: Differential and Restricted Earth Fault (REF) protection appeared first on EEP - Electrical Engineering Portal.




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The loop electrical distribution system used to supply bulk loads (industrial plants and buildings)

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.




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EN61800-3 (IEC1800-3) – Adjustable speed electrical power drive systems

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.




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IP Protection Degree (IEC 60529) Explained

The protection of enclosures against ingress of dirt or against the ingress of water is defined in IEC529 (BSEN60529:1991). Conversely, an enclosure which protects equipment against ingress of particles will also protect a person from potential hazards within that enclosure,... Read more

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Jet pumps used for private well systems or low flow irrigation applications

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

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Eleven energy-efficiency improvement opportunities in compressed air systems

Instrumentation consumes large amounts of compressed air at many individual locations in a textile plant, but these uses are susceptible to leakage. Most such leaks are at threaded connection points, rubber hose connections, valves, regulators, seals, and in old pneumatic... Read more

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Solar Panels and Feed-in Tariffs – The Intricacies of Solar Power

At its most basic, Solar Power is the conversion of sunlight into electricity; either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP). CSP systems use a combination of lenses/mirrors and tracking systems to focus a large area... Read more

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Low voltage ride through in grid connected hybrid renewable energy systems

Researches so far shows that, by 2020, around 20% of the total energy production worldwide will be generated from renewable energy. But the major problem with the standalone system is that the sources are not continuous. This intermittent nature of... Read more

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Are you concerned about your privacy in Smart Grid?

Modernization of the grid will increase the level of personal information detail available as well as the instances of collection, use and disclosure of personal information. Instead of measuring energy use at the end of each billing period, smart meters... Read more

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In Front Of The Third Electrical Systems Revolution in United States

A dizzying array of new energy technologies are reaching or nearing the marketplace. Newer choices to generate electricity include fuel cells, wind turbines, solar cells and microturbines. Energy storage is approaching practicality, for example through reversible fuel cells and flywheels.... Read more

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Driving Distributed Energy with Smart Networks

The smart network will set up a virtuous cycle for distributed generators and energy storage devices. It will grow the market by opening up more niches where distributed energy is economically competitive. This growth will lead to economies of scale... Read more

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Five telecommunication systems embedded in smart grid applications and services

Power utilities use telecommunication systems either as a support for grid assets’ operation or as the enabler for voice communications among operating staff. The main objective of utility telecommunications is to connect remote premises and staff with central premises and... Read more

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Electrical engineering for hydropower, from run-of-river to pumped storage plants

Nowadays, when we all see and feel the colossal crisis looming on the horizon, the question of energy security is among the first things on the table in each country’s management. It’s now essential more than ever for each country... Read more

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Five ingredients that make SCADA operation delicious

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

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SF6 Gas Monitoring and Alarming Practices in Gas-Insulated Switchgear (GIS) Systems

This article provides guidance on how to conduct gas monitoring and explains the various alerts that can be set. The many sorts of defects that might lead to partial discharges are discussed, and various partial discharge measuring techniques are described,... Read more

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The true art of control, monitoring and protection provided by Substation Automation Systems

The Substation Automation Systems, often known as SASs, are responsible for a tremendous variety of tasks. These include some extremely important actions, such as clearing faults in a timely manner in order to maintain the physical condition of power system... Read more

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First Certificate- Updated Exam Specifications

We are updating our site to incorporate the changes that have been made by the updates to the First Certicate in English (FCE) exam from Cambridge English.




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Best practice in hard times: How to safeguard the hundreds and thousands of substations

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

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First Woman Elected to Senate (1932)

January 12
Three Branches, One Government
Review the functions of the executive, legislative, and judicial branches of the government, as well as how the three branches relate to each other.