- You may do this assignment at home.
- You're also welcome to use a computer in our lab, even if
there is a class going on (as long as there is a free computer).
- Find information on the Internet that relates to material
covered this class, such as the following:
- Home automation
- Whole house surge suppression
- Electricity distribution
- High voltage DC power transmission
- Power export metering (selling solar power, etc., to the power company)
- Watt hour meters
- Power factor correction
- Power factor surcharge
- Power line communication (Internet coming in through the power lines)
- Lightning rods
- Ligntning
- Electricity generation
- Power stations
- Once you've found a Web site with good information, copy
its Web address and paste it into a Word document.
- You can use any word processor. You can also use
the free NVU Web editor software.
- Find sentences or paragraphs that contain key information
about the subject, then copy this information and paste it into Word.
- CTRL C will copy text you've highlighted.
- CTRL V will paste the copied text.
- Follow the format shown in the example below.
- For each bullet,
have no more than six sentences.
- To get full credit, you need to get information about at least three topics, and the total number of bullets for the
assignments needs to be at least 30.
- When you're done, print out the document and turn it in.
The due date is Tuesday, April 27.
Example
3-Phase AC
From http://en.wikipedia.org/wiki/3-phase_AC
- Three-phase electric power is a common method of alternating-current electric power transmission.
It is a type of polyphase system, and is the most common
method used by electric power distribution
grids worldwide to distribute power.
- In a three-phase system, three circuit conductors carry three alternating
currents (of the same frequency) which reach their instantaneous peak values
at different times.
- The phase currents tend to cancel out one another, summing to zero in the case
of a linear balanced load. This makes it possible to eliminate or reduce the
size of the neutral conductor.
From http://www.3phasepower.org
- 3
phase power is a common form of
electrical power and a popular method of electric power
transmission. This is due to its inherent benefits for high power
transmission and its smooth wave form quality which allow 3 phase electrical equipment to run smoothly and
last longer.
- 1 phase power can be converted to 3 phase power with a phase converter from a
company such as ACE Phase
Converter or TEMCo Phase
Converter.
Substations
From http://en.wikipedia.org/wiki/Electrical_substation
- An electrical substation is a subsidiary station of an electricity generation,
transmission and distribution system where voltage is transformed from high to low
or the reverse using transformers. Electric power may flow through
several substations between generating plant and consumer, and may be changed in
voltage in several steps.
- Substations generally have switching, protection and control equipment and one
or more transformers.
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