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Overview
There are two basic methods of circuit protection. They are fuses and circuit breakers. There are many variations of fuses and circuit breakers. This course attempts to explain how and why fuses and circuit breakers work. There is some basic theory upon which these devices are designed. There is an explanation of some of the terms that are applied to fuses and circuit breakers and why they are important to engineers who, by the very nature of their work, are exposed to the problems encountered in the use of electrical energy.
Fuse ratings include current (which is, after all) what causes fuses to open, voltage, amps interrupting capacity, and other items. There are places where fuse protection is superior to circuit breaker protection.
Circuit breaker ratings include all of the items mentioned above for fuses. Unlike fuses, they are resettable after a trip incident. There are places where circuit breaker protection is superior to fuse protection.
When a complex circuit, such as a large building or industrial facility, is designed and built the circuits should be selectively coordinated. This means that when (not if) a fault develops, only the part of the circuit involved in the fault should be disconnected. That means that power will remain available for the rest of the facility. Another way of saying this is: A protection device (fuse or circuit breaker) should only operate if it is directly involved with the fault. Upstream devices should be sized to not trip or open when the device directly downstream of it opens.
Learning Objectives
In this 2-hour webinar, you'll learn ...
- How are fuses made?
- How do fuses work?
- How are fuses applied?
- What are the advantages and disadvantages of fuses?
- How are circuit breakers made?
- How do circuit breakers work?
- How are circuit breakers applied?
- What are the advantages and disadvantages of circuit breakers?
- What is selective coordination for fuses and circuit breakers?
Early Bird Discount
In order to receive the Early Bird Price of $109.90,
you must register and pay your reservation by April 21, 2010. For reservations made after that date, regular pricing of $119.90 will apply.
How Webinars Work
It's easy ... and it doesn't take a computer guru to figure it out. At the time of the webinar, you connect to the internet and call in to a toll-free number. You see the presentation on your computer screen. You hear and talk through the telephone. It's just like being there without all the hassle. There's no travel expense and no wasted time in the car.
System Requirements
To attend this webinar, you'll need a computer with a high-speed internet connection (DSL or cable) and a phone line. For your comfort, it is recommended that you use a speaker phone or headset to connect to the webinar. Our system will support both PC and Apple computers using Internet Explorer or Firefox browsers.
Registration Deadline
Online registration ends 1 hour prior to the webinar; however phone registration can be accepted up to 10 minutes before webinar begins. Please call 877 500-7145 (toll free) for last-minute reservations or to enroll a group. Webinars fill up quickly. Register early to reserve your seat.
Accessing the Webinar
After paying for your webinar reservation, you will be given the opportunity to print a Webinar Receipt and Access Information page that contains instructions to access the webinar. This information can also be found by clicking the My Account tab at the top of any PDHengineer page, then select Print Receipts and Access Information for Webinars Purchased. About 10 minutes before the scheduled starting time, call the toll-free phone number listed in the instructions. When asked to do so, enter the access code shown on the instructions.
Then, using your computer, go to the website shown in the instructions and enter the access code as shown. You will be asked to enter your name and email address.
Of course, our Customer Service Team is available to help if you have any questions about accessing the webinar. Our toll free number is 877 500-7145.
Printing Your Certificate
After completion of the webinar, return to the PDHengineer.com main website and click the My Account tab in the top right corner of the screen. Select Webinars Attended Pending Survey Completion to take a short three or four question survey regarding how well we met our stated learning objectives. You will then be able to immediately print your Certificate of Completion. You can always print additional copies of this certificate by selecting My Account and then Webinars Attended.
Cancellation Policy
You may cancel your enrollment in this webinar up to 48 hours prior to the event and receive a full refund less a $10 registration service fee. Cancellations made less than 48 hours prior to the webinar, but at least 4 hours prior to the scheduled starting time will not be refunded, but can be credited to a future webinar. Cancellations made less than 4 hours before the webinar are not refundable.
PDH credits
Webinars earn PDH credits for engineer in all states, unless otherwise stated in the literature for a specific webinar. PDHengineer.com, a service mark of Decatur Professional Development, LLC, is an approved provider of continuing education for engineers. For more details, check your state requirements.
ATTENTION NEW YORK ENGINEERS: Webinars from PDHengineer.com have been accepted by the New York State Board and will fulfill the "live course" requirement. This webinar is guaranteed to be accepted by the New York State Board as live engineering PDH. In fact, all of our webinars are designed to be accepted in New York and all other states. Just look for the "New York Accepted" icon on this webinar overview page. It's your assurance that the PDHengineer.com Iron-Clad Money Back Guarantee protects you.
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