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January 28th, 2009, 10:25 PM
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#2 |
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Super Moderator
Join Date: Jan 2009
Location: 3rd Rock From The Sun
Gender: Male
Posts: 101
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Yes, I have a question for you. Can you explain how my local sub station gets its power and how its distributed to the end user. I'd like to see some diagrams and pictures. I'm told that electricians are smart and know-it-alls.
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January 28th, 2009, 10:30 PM
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#3 | |
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Senior Member
Join Date: Jan 2009
Location: toronto
Gender: male
Posts: 123
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Quote:
I can come up with................S........ 
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February 2nd, 2009, 10:34 PM
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#4 |
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Super Moderator
Join Date: Jan 2009
Location: 3rd Rock From The Sun
Gender: Male
Posts: 101
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Since resident electrician is missing in action, here's a brief explanation of how the systems works.
Generation Electricity is produced or generated by the turning of turbines. In most power plants, these turbines are turned by pressurized steam. The steam is created by the burning of coal or other fossil fuels in massive boilers. In the case of hydroelectricity, the force of rushing water turns the turbines. Transmission Once the turbines generate electricity, its voltage is significantly increased by passing it through step-up transformers. Then the electricity is routed onto a network of high-voltage transmission lines capable of transporting electricity over long distances. Distribution At the distribution substation that serves your home, the electricity from the transmission system is passed through step-down transformers that lower the voltage. The electricity is then transferred onto your local electric network of distribution lines and delivered to your home. At this point, the voltage is lowered again by a distribution transformer and fed through your electric meter into your home's network of wires to the respective outlets.
Last edited by iOperate; February 3rd, 2009 at 01:52 PM. |
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February 2nd, 2009, 10:51 PM
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#5 |
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Super Moderator
Join Date: Jan 2009
Location: 3rd Rock From The Sun
Gender: Male
Posts: 101
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 1) Electricity is generated at the power plant. 2) Electricity then leaves the power plan to a step-up sub station, where its voltage is increased to make long distance transmission more efficient. 3) The energy travels along a transmission line to the area where power is needed, such as town and cities. 4) Once electricity reaches the towns/cities, voltage is reduced (stepped down) at another substation to voltages that is required by homes and business. 5) A distribution power line carries the electricity to homes and Businesses. Last edited by iOperate; February 3rd, 2009 at 01:55 PM. |
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February 7th, 2009, 04:10 PM
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#7 | |
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Senior Member
Join Date: Jan 2009
Location: toronto
Gender: male
Posts: 123
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Quote:
The higher the voltage , the lower the current needed. For example your house uses 120/240 volts 100 amps if it was to leave the power plant at 120/240 and feed even 100 house that would be 10,000 amps . the wire size alone would be astonomicail. By stepping up the voltage you can use smaller wire , less amperage and feed a wider area. If you have 44,000 volts at 10 amps , you would have approx. 1800 amps at 240 volts. The higher voltage also helps in line loss. higher voltage means less current , less current less resistance , less resistance less loss. 
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