Electric Transmission – The Invention of Electricity and Evolution of Voltage

ELECTR C TRANSN SSIONU An Evolution Evolution Of Electricity ALessanDro GIuseppe AnTonio AnasTasio VOLTA:VOLTAIC PILE (ELECTRIC BATTERY) THALES OF MILETUS: STATIC AmBER Thales of Miletus (from 636-546 B.C.) one day, found out that when he rubbed an amber with a piece of fabirc, it could attract feathers and other light objects. He was unsure why this occured but now we know this happens because of static electricity. Alessandro Giuseppe Antonio Anastasio Volta, an Italian physicist, was the creator of the worlds first electric battery but to create this it took 25 years of studying and planning. The battery was used to produce an electrical current. The current would flow through a wire that connected the two discs. Made from silver and zinc discs covered in a solution of acid. 1690 1670 1720 1800 1650 1740 1780 Benjamın FranKLIn: LIGHNING RODS 1760 Franklin's previous experiment also made Franklin invent the lightning rod. Franklin had found that a pointed rod was a better conductor than a ball. The rod was attached to a wire which was attached LUIGI GaLvanı: MusCLe MovinG EneRGY to the ground. The rod then attracted lightning away from other objects around it and directed the electricity into the ground. An Italian scientist, Luigi Galvani discovered electricity. He discovered it when he attached a brass hook to a frog's leg and to an iron rail. When lightning struck the iron rail, the frog's leg moved! He hypothesized that the electricity traveled through the metal, and in the end this was correct. Benjamın FranKLIn: KITes anD LIGHTS!!! Benjamin Franklin had always speculated that lightning is caused by electricity. In 1752, on a stormy day, Franklin put a stiff, sturdy wire on top of a kite and at the end of the kite, a metal key. The rain made the kite which helped the kite conduct the lightning better. Then a lightning bolt hit the kite and sparks flew out of the key. This then proved that lightning is just a gigantic spark of electricity. The Journey Of Voltage AC STARTED BY TESLA Nikola Tesla, devised a system of distributing electricity using three-phase 240V AC. Tesla had calculated that 60HZ was the most effective frequency for distributing electricity. He later compromised and reducedthe voltage to 110V for safety reasons. TESI OMPANY EUROPE GOES TO SOHZ AEG The German company AEG started generating electricity and became a virtual monopoly in Europe. They decided to use 50HZ instead of 60HZ to better fit their metric standards, but they POWER SOLUTIONS kept the voltage at 110V. US STAYS AT IOV 60HZ The US also considered converting to 220V for home use, but felt it would be too costly, due to all the 110V electrical appliances people had. A compromise was made in the US in that 220V would come into the house where it would be split to 110V to power most appliances. Require some speciol Converters, Tronsformers and adopters to ollow the opplionce or device to work properly Invention Of Adapters VOLTAGE CONVERTERS Voltage converters are used to change the AC voltage needed the appliance. They can either decrease the AC voltage from 220V to 110V or increase the voltage from 110V to 220V VOLTAGE TRANSFORMERS Voltage transformers are used to increase or decrease the voltage and can be used with electronic devices such as radios, televisions, computers and other devices having electronics circuitry. DUAL VOLTAGE DEVICES Dual voltage devices have a built-in converter or transformer. Most laptop battery chargers and AC adapters are dual voltage, so they can be used with only a plug adapter for the country you are visiting. Presented By Sources http://www.timetoast.com/timelines/118810 http://www.voltagesuperstore.com/4historyofworldwideelectricvoltage.shtml SAM STORES "We can meet and Beat Price" 7th Mar, 1752 6th Mar, 1650 ------ ----- 6th Mar, 1800 1st Mar, 1786 -----