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What's it like going on a residential?

Press Packer Sienna tells us all about her residential experience and her top tips for making the most of it.




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'I opened Latitude festival with my poem'

Anna, aged eleven, won a competition to open Latitude Festival with her poem, The Mother Tree. She told Newsround about her experience.




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Injury to keep dancer Amy Dowden out of this year's Strictly

It has been announced that Strictly Come Dancing Star Amy Dowden will not be returning to this year's series of Strictly.




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Government plans to ban smoking outside schools and playgrounds

The government has announced plans to make it illegal to smoke outside schools and hospitals, and in children's playgrounds in England. They have also said that some outdoor places could become vape-free.




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'We should learn to love them' - why big spiders aren't as scary as you think

Does it seem like there are more spiders around the house right now? And do the spiders you spot seem bigger than those you've seen in recent months? Spider expert, Dr Sara Goodacre, is here with some arachnid answers.




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Australia announces next steps to under-16 social media ban

Politicians in Australia's parliament will vote on the law next week and, if passed, it aims to stop children being allowed social media accounts. But for some kids there will be ways around it.




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What plans can we expect from Donald Trump as president?

Mr Trump will announce his wider plans for his government in due course, but here are some of the big issues he talked about during the election campaign.




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Donald Trump will be next US President

Donald Trump wins the US presidential election as his rival Kamal Harris accepts defeat.




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Strange News: The week's weirdest stories

Nina has our weekly dose of Strange news. We've got some cake, some giant masks and some apples in a bath!




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'The one rule is to get outside'

More than 1.5 million children across the UK are taking their learning outside this year as part of Outdoor Classroom Day.




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So bad. I don't have any students to tutor now.



  • Editing & Writing Topics

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<Did you understand> <Have you understood> what I just said?



  • Ask a Teacher

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Palos Verdes Library District

Archives Internship (Rolling Hills Estates--onsite/virtual)




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Noam Chomsky Talks About Universal Grammar [Video]

In this video, Noam Chomsky talks about language at Google as part of the Authors@Google series.

In this question and answer session he discusses a number of topics, but the first is about universal grammar in which he provides an in-depth description of how his ideas on universal grammar have evolved over time.

Another interesting question he answers at the end of the session relates to the effect of email, instant messaging and the like on syntax and grammar (TXT Speak). Hear Chomsky's views on whether this is just a natural part of the evolution of language and how it's affecting our minds.




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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 linguistic genius of babies [Video]

At TEDxRainier, Patricia Kuhl shares astonishing findings about how babies learn one language over another -- by listening to the humans around them and "taking statistics" on the sounds they need to know. Clever lab experiments (and brain scans) show how 6-month-old babies use sophisticated reasoning to understand their world.




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Be in deep water

To be in 'deep water' is to be trouble or in a difficult or serious situation:

Example: "The director knew he'd be in deep water if he didn't mention his wife in his acceptance speech."




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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 art of determining the right cross-section of low voltage conductors

To be clear at the beginning of this article, determining the cross-section of conductors and cables is, for sure, not the most exciting part of electrical design. There are much more challenging and more exciting parts than staring at endless... Read more

The post The art of determining the right cross-section of low voltage conductors appeared first on EEP - Electrical Engineering Portal.




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Dos, don’ts and precautions in wiring cables and conductors inside low-voltage switchboard

To be clear from the very beginning of this article, there is no standard model for wiring low voltage switchboards and panelboards. However, for the wide variety of installations and ranges of power ratings, there are local work practices, regulations... Read more

The post Dos, don’ts and precautions in wiring cables and conductors inside low-voltage switchboard 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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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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AirPano - Amazing 360 Degree Aerial Panoramas

After a few weeks of cold weather, cloudy skies and snow on the ground my mind begins to wander and think of where I would rather be than here. Hawaii sounds good, doesn't it? Unfortunately, my bank account usually says no to those types of dreams so I found AirPano.com which, at least, took my mind off of how cold I am and provided me a poor man's virtual vacation.

AirPano.com was actually better than I expected as it provided incredible 360 degree imagery of landmarks and cities from all over the world. Their website features "over 700 panoramas showing over 120 amazing locations of all continents including Antarctic and the North Pole" and panoramas from some 50 other locations are in the works.


Source: AirPano.com

Much of the AirPano imagery now includes interactive pinmarks that you can click on to learn more about the places that you are visiting (as you can see on the Venice, Italy panorama below). I think AirPano is a great way to learn about other parts of the world, not only from the amazing images, but also from the history and facts about each site that they provide. Last, but not least, it is a great way to get your mind off of the cold winter weather...


Visit Venice, Italy on AirPano.com




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Assessment Study Guides from the CareerTech Testing Center

The CareerTech Testing Center (CTTC) works closely with instructors, industry representatives and credentialing entities to identify and develop assessments and assessment preparation materials that are aligned with recognized industry standards.

Study guides are designed to help students prepare for the assessments. Each study guide includes:
  • information about the assessments within a content area
  • the standards upon which each assessment is based
  • test plans
  • practices questions
  • test-taking strategies
  • many study guides also include a crosswalk to instructional materials that may be used during instruction or when studying for assessments.
CTTC assessments are directly aligned to assessments needed to obtain credentials that are required and/or valued by industry. Assessments measure how well the student has mastered the content deemed important by industry, and while passing a CTTC assessment is no guarantee of future success, it does provide an indication of whether or not the student is ready for certification or licensure.

Click here for Study Guides and please contact us if you have any questions!

The CareerTech Testing Center has been developing skills standards and online tests since 1980 as we work closely with instructors, program administrators, industry representatives, and credentialing entities to ensure that our study guides and assessments reflect national standards and local industry needs.




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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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Think QR Codes are Static? Think Again!

All of the QR (Quick Response) codes that I have created are static QR codes which served one function and that was to take you to a certain website.

QR codes have definitely evolved over time so take a look at the article from Edutopia entitled QR Codes Can Do That? and find out how to:

  • Add your voice
  • Attach PDF files
  • Collect information
  • Send a tweet
  • Change locations




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Sleep - A Student's Most Important Homework Assignment

Want to know how sleep "resets" your brain? How memories are formed and retained?  Then watch The Benefits of a Good Night's Sleep, embedded below, and learn how sleep balances and regulates the body's vital systems which, in turn, affects declarative and procedural memory.

This short TED-Ed lesson by Shai Marcu is an important topic as school starts and students will soon be staying up late or all night in order to cram for tests and other educational requirements. Marcu goes into detail describing the neurological importance of 8 hours of sleep, but the application is interesting as going to sleep three hours after memorizing math formulas (declarative memory) and one hour after practicing music scales (procedural memory) is the most ideal.

I'm left wondering what I might have accomplished if my sleep and learning patterns were consistent during my formative years...
    




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Wizer - A Free Platform to Create and Share Interactive Worksheets for Your Students



Wizer is an educational platform that allows instructors to create quick, easy and fun digital worksheets, to share them with fellow instructors, and to keep track of student performance.

The "FAQ's" below will tell you question types, multimedia resources, login formation, and some of the technology requirements.

As you know, "free" and "time-saving" are important factors to me....

Wizer FAQ's:

1. How much does Wizer cost?
Wizer is FREE for teachers. You may build, assign, share and use as many worksheets as you like for free.

2. How many worksheets can I make?
As many as you want! The use of the Wizer digital worksheet builder is unlimited. Make as many as you’d like. Please click to ‘share on gallery’ so that other Wizer teachers can see what you’ve created and use it with their students. Your influence is growing!

3. Can I use another teacher’s worksheet?
Yes. Wizer is a community of innovative teachers who create and share their digital lessons. Any worksheet on the public gallery can be used by simply clicking ‘Use’ or ‘Use this worksheet’. This duplicates the worksheet and puts the copy in your account. You can use it as-is or make some adjustments to fine tune it for your students.

4. What is the public gallery?
When teachers create a worksheet, they may chose to ‘publish on gallery’ to share it with other teachers. Any worksheet shared on the public gallery can be viewed by other teachers for inspiration or used with their students. To use a gallery worksheet, just click ‘Use’ or ‘Use this Worksheet.’

5. Does Wizer work on iPads and tablets?
Yes! Wizer worksheets can be completed on any iPad or tablet.

6. Does Wizer work on Chrome Books and laptops?
Yes. Any 1-to-1 device that is connected to the internet and has a web browser can be used to create and complete Wizer worksheets. The best browsers are Chrome and Safari.

To assign a worksheet to students do the following:
When creating the worksheet, at the navigation on top click on 'Assign to students'.
On the window that opens you can create an assignment for each class. Each gets its own link & pin code so you can later review their answers separately for each class.

There are 3 ways for you to share it with the students (from left to right):
1. Use the Google Classroom link and follow Google's instructions.
2. Copy the link and simply share it with your students.
3. Instruct your students to go to this link: https://app.wizer.me/learn/ and enter the pin code.

8. How do students login, complete and submit Wizer worksheets?
1. Google Classroom: Click on link.
2. Link: Click on link, sign in using G+ or name/password
3. PIN: Go to https://app.wizer.me/learn/, enter PIN worksheet PIN. 

9. Can I use Wizer with Google Classroom?
Yes. Wizer is integrated with Google Classroom and Wizer worksheets can be assigned to students directly via the green Google Classroom link. The first time you assign a Wizer worksheet via Google Classroom you will be asked to confirm your connection with a few simple steps.

10. Can I use Wizer with Haiku?
Yes. If your school uses Haiku digital learning platform you can create or use Wizer worksheets, then copy the worksheet link into your classroom pages.

11. Can I use Wizer with Moodle?
Yes. If your school uses Moodle open source learning platform you can paste worksheet links directly into class assignments.

12. What kind of multimedia resources can I use in Wizer worksheets?
You can easily add video, audio and images to any Wizer worksheet. Images can be made interactive using the Fill on an Image question type.

13. What kinds of questions can I make with Wizer?
Wizer question types: Open answer, multiple choice, matching, fill in the blank, fill on an image and tables.





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Seven golden foundations of good electrical installation work

This technical article deals with the practical aspects of commercial and industrial electrical installation work. It is of the utmost importance that the practical task be done in the appropriate manner. Electrical installations in commercial and industrial settings are often... Read more

The post Seven golden foundations of good electrical installation work appeared first on EEP - Electrical Engineering Portal.




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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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How to measure power quality? What devices should you use and what to measure?

Measuring power quality and finding a bugbear in the network which is messing with the power are considered a highly paid job. Every electrical network and its problems with harmonics, transients, or disturbances are unique and need careful planning, setting... Read more

The post How to measure power quality? What devices should you use and what to measure? appeared first on EEP - Electrical Engineering Portal.




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Six methods to control the flow of harmonic currents and decrease harmonic distortion limits

The first technique to control harmonic-related problems in the industry involved substantial use of single-tuned filters to offer a low-impedance path to harmonic currents. Interestingly, it is not difficult to find harmonic-producing loads in the megavolt-ampere range in the industry... Read more

The post Six methods to control the flow of harmonic currents and decrease harmonic distortion limits 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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Let’s develop the simple PLC program for lighting control system

A lighting control system is to be developed. The system will be controlled by four switches, SWITCH1, SWITCH2, SWITCH3, and SWITCH4. These switches will control the lighting in a room based on the following criteria: Any of three of the... Read more

The post Let’s develop the simple PLC program for lighting control system appeared first on EEP - Electrical Engineering Portal.




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7 key steps in lighting design process

To achieve the best overall outcome in a lighting installation, it is important to avoid the tendency of rushing straight into luminaire selection before determining more broadly what is required from the system. The use of a structured design process... Read more

The post 7 key steps in lighting design process appeared first on EEP - Electrical Engineering Portal.




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Guidelines To Residential Room Lighting

Architects of development houses usually select the locations for switches, receptacles, and luminaires at a quality and price level determined by the builder. However, purchasers of architect-designed, custom-built homes usually have an opportunity to decide on the selection of luminaires... Read more

The post Guidelines To Residential Room Lighting appeared first on EEP - Electrical Engineering Portal.







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Design issues in HV busbar protection systems (substation topology and DC power supply)

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.




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Tricks in designing and analyzing schematics and diagrams of high voltage substations

High voltage power substations are complex networks of power and control connections, represented by design elements like- Single Line Diagrams, layout and block diagrams, schematics, logic diagrams, schedules, and so many more. Wiring diagrams and schematics, in a sense, are... Read more

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Good practice in the design of concrete and steel structures in power substations

The process of designing a substation usually begins with the general substation layout, which is dependent on the required safety clearance and insulation withstand, as well as the permissible loads delivered to substation equipment and structures. The permissible loads, in... Read more

The post Good practice in the design of concrete and steel structures in power substations appeared first on EEP - Electrical Engineering Portal.




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Fundamental concepts of schematic drawings: Going deeper into analysis and design intricacies

Welcome to this comprehensive technical article that delves into the intricacies of electrical schematics, shedding light on crucial elements such as loops, wire connections, auxiliary contacts, MCBs, contactors, circuit breakers, isolators, earth switches, and terminal blocks. In the world of... Read more

The post Fundamental concepts of schematic drawings: Going deeper into analysis and design intricacies appeared first on EEP - Electrical Engineering Portal.




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Guidelines for selecting the proper Variable Frequency Drive (VFD) for motor applications

This article addresses the Variable Frequency Drive (VFD) concept in several aspects that matter the most in selecting the proper VFD for applications. One of the important factors is the control type required for a given application since it is... Read more

The post Guidelines for selecting the proper Variable Frequency Drive (VFD) for motor applications appeared first on EEP - Electrical Engineering Portal.