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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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The essential HV/EHV substation auxiliary facilities you should know about

Nowadays, HV/EHV substations have become pretty complex from the design point of view. Besides the main electrical equipment, which must be designed and selected correctly, there are several auxiliary facilities without which a substation would not be able to operate... Read more

The post The essential HV/EHV substation auxiliary facilities you should know about 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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Daily Warm-Up 34 for Gr. 3 & 4: American History

Help students master important reading skills with a passage about the Pony Express and reading comprehension questions, in this printable warm-up.




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Hydrogen incentives get cold reception in New Mexico

A panel of state legislators rejected a bill that would have provided new financial incentives in New Mexico for the hydrogen fuel that is derived from natural gas.




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Minnesota regulators approve Xcel Energy’s new additions, retirements

The Minnesota Public Utilities Commission approved Xcel Energy’s 2019 Integrated Resources Plan (IRP), which guides the utility’s direction over the next 15 years.




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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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Largest US public power company launches new nuclear program

The largest public power company in the U.S. is launching a program to develop and fund new small modular nuclear reactors as part of its strategy to dramatically reduce greenhouse gas emissions.




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How Duke Energy addresses attemperator issues

When combined cycle plants are run at low loads, problems often arise with overspray from attemperators using traditional mechanical atomization. To address this issue, plants can upgrade to steam atomization attemperators.




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Family, data and power generation: A conversation with CPS Energy’s Melanie Green

Melanie Green is currently Sr. Director of Power Generation at CPS Energy in San Antonio, Texas.




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Duke Energy aims to double renewable energy capacity by 2030, phase out coal by 2035

The utility's five-year capital plan totals $63 billion, 80% of which will support investments in grid modernization and zero or lower-carbon emitting generation.




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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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Do You Know How to Effectively Search for Information?

I found a resource that I wanted to share with created by Helene Blowers and published in the article entitled, "Do Your Students Know How To Search?" (Holly Clark, Edudemic, October 16, 2013).

I think this article begins to address either the end of the Information Age or at least a progression toward a different stage within the Information Age and the question now becomes what do we do with the information that has been collected? I believe there will be a great need for those who can not only find relevant information, but for those who can analyze information.

According to the article:

There is a new digital divide on the horizon. It is not based around who has devices and who does not, but instead the new digital divide will be based around students who know how to effectively find and curate information and those who do not. Helene Blowers has come up with seven ideas about the new digital divide – four of them, the ones I felt related to searching, are listed below.

Clark continues the article by including some of the searching skills and vocabulary that she believes we should be teaching our students (and learning ourselves):
 
Some of these skills include:
  • Quotation Marks
  • Dashes
  • Two Periods
  • Site Search
  • Country Codes
  • Filter Bubbles
  • Primary Sources
Please click HERE to find out more about these search tools and how to improve your internet searches.




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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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How to Search Google Images by Usage Rights

I found a great resource by Joyce Valenza on Never Ending Search that I wanted to share with you. In her post, Google search by usage rights, she demonstrates an easy way to find copyright-friendly images on Google Image Search.

First, enter your search term into Google Images and then click on Search Tools and then Usage Rights.


A drop-down menu appears offering the following options: not filtered by license, labeled for reuse, labeled for commercial reuse, labeled for reuse with modification, labeled for commercial reuse with modification.




Please read the rest of Joyce Valenza's article by clicking HERE to find many other copyright-friendly image search options!




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Cheating Your Way Through High School and College: The Numbers

Academic cheating seems to be growing at an ever alarming rate. Cheating occurs at every level of education and certification and it includes students, educators, and administrators. Technology has also given cheaters new methods for cheating and, unfortunately, you can find most of these methods demonstrated on YouTube (you can find additional resources on cheating HERE).

Best College Reviews created an interesting infographic about cheating in high school and college that I wanted to share with you. They provide resons for cheating and how cheating occurs among other interesting factoids.

Please take a look at their website to find additional resources on cheating (listed below the infographic).


Source: BestCollegeReviews.org (please follow the link for additional resources on cheating)




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New Year's Resolution: Secure Your Assessment System

It's unbelievable that 2016 is here and the school year is half over, but that also means we are closer to the busiest time of year for those of us in the assessment industry.

I hope everyone has created and follows a secure assessment policy, but if not, John Kleeman, founder of Questionmark, created Ten tips for Securing Your Assessment System, which provides a secure foundation for your assessment system.  It seems security breaches most often occur as we get busy and are more prone to creating shortcuts in our work, but a "system" should help minimize these errors.  Please read John's post in its entirety and address any weaknesses in your assessment security:

What can you do to make your assessment system more secure? How can you avoid a disruptive data breach where people’s personal information is disclosed? Using a vendor who takes security seriously reduces risk, as I wrote in my blog article Eight ways to check if security is more than skin deep. But security involves both vendor and user. This post gives ten good practice tips on how you as a user or administrator of an assessment system can reduce the risk of data breaches.

1. Don’t give yourself or other administrators unnecessary privileges. Follow the principle of least privilege. It may sound counter-intuitive, but most administrative users don’t need access to all capabilities and data within your system. Limiting access reduces the impact of a data breach if an account is compromised or someone makes a mistake. If you are using Questionmark, allocate appropriate roles to limit people to what they need.

2. When someone leaves the project or organization, remove their access. Don’t allow someone who has left your team to still have access to your assessment data.

3. Follow good password security. Do not share passwords between people. Do not use the same password for two accounts. Choose strong passwords and change them periodically. If someone asks you for your password, never, ever give it. And if a web page doesn’t look right, don’t type your password into it.

4. Install all the patches and secure the system. A common cause of security breaches is failing to install the latest versions of software, and attackers exploit known vulnerabilities. You need to be proactive and always install the latest version of system and application software, set up good technical security and follow the vendor’s recommendations.

If you haven’t got the time or resources to do this properly, move to a cloud solution. In a cloud SaaS solution like Questionmark OnDemand, the vendor is responsible for updating Windows, updating the application, monitoring security and ensuring that everything is up to date.

5. Install good quality antivirus / anti-malware software. Reportedly there are nearly a million new or variant malware and viruses produced each day. Protect your computer and those of your co-workers with up to date, professional software to address this threat.

6. Protect any downloaded data. Questions, assessments and reports on results are generally safer on a server or in an on-demand service than on a workstation. If you need to download data locally, set up security procedures to protect it and try to ensure that any download is temporary only.

7. Dispose of data properly. Deleting a file on a computer doesn’t erase the data, it simply erases the index to it. If you use a reputable service like Questionmark OnDemand, if a disk is repaired or reaches end of life, it will be securely destroyed for example by degaussing. But if you download data locally or use installable software to manage your assessments, you need to do this yourselves. A recent study suggested that about half of used hard drives sold online contain residual data. Make sure this is not your assessment data!

8. Be careful about clicking on a link or attachment in an email. Phishing attacks use email or malicious websites (clicking on a link) to collect sensitive information or infect your machine with malware and viruses. Such attacks could even be aimed at your organization or assessment activity directly (this is called spear phishing!). Think before clicking.

9. Be aware of social engineering. Social engineering is when someone tries to trick you or someone else into a security breach. For example someone might ring up and claim to be a student who wants their results, but really is an imposter. Or someone might spoof an email from your boss asking for the questions for the next test to review. Be wary of strange phone calls or emails that ask for something urgent. If something seems suspicious, clear it with a security professional before you give them info or ask a caller to hang up and call them back on an official number.

10. Conduct security awareness training. If you’re not already doing this, organize training sessions for all your authors, proctors, administrators and other users to help them be security aware. if you can, deliver tests after the training to check understanding. Sharing this blog article with your co-workers would be a great way to start.

To see more Questionmark posts click HERE.




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CIMC Introduces New Online Catalog

CIMC introduces the next generation of our online catalog, featuring curriculum and assessment products.

CIMC Online Catalog
CIMC is excited to offer our new interactive catalog which serves as a hub for the field to access agency products and services.  The only thing that has changed with the catalog is everything – users will notice a professional look and feel, enhanced graphics, links to resources, suggested products, and the ability to pay with a credit card, purchase order, or check.

We are thrilled to offer an improved and interactive experience that allows users to find their favorite products and services – the only thing that hasn’t changed.  As always, our skills standards, curriculum, and assessments create the perfect foundation for competency-based instruction, in Oklahoma and beyond.
Take a moment to discover the new online catalog and see how we've changed. We are committed to your satisfaction and welcome your feedback!
CIMC is part of the Curriculum, Assessment, and Digital Delivery (CADD) division of the Department of Career and Technology Education. For additional information on our products and services, please visit:




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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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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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Use Twitter "Moments" to Share School Events and Activities

Follow us! @CareerTechTest

Nearly a year after releasing its Moments curation feature, Twitter Moments is now available to users.

Twitter Moments are curated stories about what’s happening around the world—powered by Tweets.  Originally, a user could click on Moments on their profile page to find curated stories, i.e News, Entertainment, Sports, and Fun, in a typical news format.

But now, it’s easy to create your own story with Twitter Moments.  I think this is a great way to share school events and activities and it could also assist with classroom discussion, especially when dealing with current events.

Either watch the video by Richard Byrne of Free Technology for Teachers or follow the directions from Twitter below:


How to create a Moment

There are three ways to begin creating your own Moment. You can access Moments through the Moments tab, your profile page, or through a Tweet detail. To get started all you need is a title, description, Tweets, and a selected cover image.

From the Moments tab:
  1. From the Moments tab, click the Create new Moment button.
  2. Click the Title your Moment field to give your Moment a name.Note: Titles can be up to 75 characters in length.
  3. Click the Add a description field to type in a description for your Moment.Note: Descriptions can be up to 250 characters in length. 
  4. Choose Tweets to add to your Moment: 
    1. From the Add Tweets to your Moment section at the bottom of the page, quickly access content to select Tweets from Tweets I’ve liked, Tweets by account, Tweet link, and Tweet search prompts. 
    2. To add a Tweet to your Moment, click on the checkmark icon 
  5. Click Set cover to choose a cover image from one of your selected Tweets, or to upload an image from your computer. Drag your selected image to set a Mobile preview, click the Next button, then click the Save button.Note: To change your selected image, hover over the cover image and click on Change cover media. After you’ve set your cover media, the source will be credited below the image. 
  6. Once you have Tweets in your collection, click on the up  or down arrow buttons  to the right of a Tweet to move it up or down.
  7. Click on the delete button  to remove a Tweet from your Moment.
  8. Click on the crop button  next to any of your selected Tweets to make an image selection for mobile viewing.
  9. Click the Finish later button at the top of the page to save a draft.
  10. When you are ready to make your Moment live, click on the Publish button at the top of the page.
From a Tweet:
  1. Click the more button 
  2. Select New Moment to add the Tweet to a new Moment.Note: Any completed Moments or Moments drafts you have in progress will also be listed in the drop-down to choose from.
  3. Follow the directions above to complete your Moment.
From the Moments tab on your profile page:
  1. Click on the Moments tab, then click the Create new Moment button to get started.
  2. Follow the directions above to complete your Moment.
Note: Access all of your Moments (draft or published) by selecting Moments from your profile icon drop down menu.

More options while creating a Moment:
From the More menu at the top of the page:
  1. Click on ••• More while in draft mode.
    1. Select Choose mobile theme color if you’d like to apply one.
    2. Select Mark that Moment contains sensitive material if appropriate.
    3. Select Share Moment privately to copy and paste your Moment’s URL to share privately with others. Note: The Moment will only be visible to people who have the URL, it will not be visible on your profile page, or published on Twitter.
    4. Select Unpublish Moment to unpublish a Moment you have previously published. 
    5. Select Delete Moment to permanently remove the Moment from your profile and Twitter. Note: You will see a confirmation pop-up message to confirm the deletion.
After you’ve saved your Moment as a draft:
  • You can click on the Edit button under the Moment description to continue editing your Moment.
  • Click the Tweet button under the Moment description to share your Moment with your followers. Note: The Tweet compose box will pop up giving you an opportunity to edit or add to the auto-populated Moment title and link in the compose box.
  • Click on the more button  under the Moment description to send your Moment via Direct Message, and to view the copy and embed links to your Moment. Note: As you scroll through your saved or published Moment you will see a menu pop-up on the left hand side to conveniently Edit, Tweet, or Message your Moment.

Frequently asked questions

Can I make my Moments private?
When creating a Moment, you can select Share Moment privately, which will only make the Moment available to those who have the link. If you would like to make previously published or shared Moments visible to only you, select Unpublish Moment.

Can content in my Moment be reported?
Yes. Content displayed in a Moment, such as photos, videos, or Tweets can be reported. To learn about the various options for reporting components of a Moment, read our How to report violations article.

What happens if a Tweet I included in my Moment is reported?
If the cover or any of the individual Tweets of your Moment is reported to us and found to be in violation of the Twitter Rules, your account may be locked—even if you did not author the Tweet.




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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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Twelve ultimate mistakes when selecting circuit protection for low-voltage equipment

To be honest, a circuit breaker is fairly simple device. However, the process of specifying circuit protection is often complicated and unclear, leading many engineers to either include insufficient or excessive protection in their equipment designs. Insufficiently protected circuits expose... Read more

The post Twelve ultimate mistakes when selecting circuit protection for low-voltage equipment appeared first on EEP - Electrical Engineering Portal.




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Controlling power system parameters through reactive power (VAr) compensation

To be honest, transmission and distribution networks are full of problems. But that’s nothing new, and you already knew that. This technical article will shed some light on solving some pretty severe problems in transmission and distribution networks by using... Read more

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Six less known phenomena that can cause disturbance in electrical installations

In addition to the known phenomena of lightning and switching, numerous new sources, in particular power converters, can cause disturbance in installations. This disturbance, which is generated by the installation itself or carried by the system from external sources or... Read more

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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

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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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31 Common Household Circuit Wirings You Can Use For Your Home (3)

1st part | 2nd part | 3rd part The list of the last eleven household circuit wirings: Three-way switches & light fixture (fixture at start of cable run) Three-way switches & light fixture (fixture at end of cable run) Three-way... Read more

The post 31 Common Household Circuit Wirings You Can Use For Your Home (3) appeared first on EEP - Electrical Engineering Portal.




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31 Common Household Circuit Wirings You Can Use For Your Home (2)

1st part | 2nd part | 3rd part The list of the next ten household circuit wirings: Double receptacle circuit with shared neutral wire (receptacles alternate circuits) Double receptacle small-appliance circuit with GFCIs & shared neutral wire Double receptacle small... Read more

The post 31 Common Household Circuit Wirings You Can Use For Your Home (2) appeared first on EEP - Electrical Engineering Portal.




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31 Common Household Circuit Wirings You Can Use For Your Home

The circuit wirings in this article show the most common wiring variations for typical electrical devices. Most new wiring you install will match one or more of the wirings shown. Find the wirings that match your situation and use them to... Read more

The post 31 Common Household Circuit Wirings You Can Use For Your Home appeared first on EEP - Electrical Engineering Portal.