Generators, Motors and How We Get Electricity. Topics . What is electricity? Energy Conversion The Faraday Effect Motor vs. Generator AC/DC Energy Trends - the case for Green. What is Electricity?. Electricity is energy transported by the motion of electrons.
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Electricity is energy transported by
the motion of electrons
**We do not make electricity, we CONVERT other energy sources into electrical energy**
Conversion is the name of the game
What do you need?
Stationary magnets - rotating magnets - electromagnets
Large-scale generators produce AC
Follows sine wave with n cycles per second
1, 2, 3-phase?
US:120 V,60 Hz
Europe: 240 V,50Hz
Batteries, Photovoltaics, fuel cells, small DC generators
Charge in ONE direction
Negative, Positive terminals
Easy conversion AC to DC, not DC to ACAC/DC (not the band)
Force Driving Motor (Red)
Single Phase Two Phase Three Phase
Polyphase Systems 3 phases for smoother torque delivery
*TOE - Tons of Oil Equivalent (~40 Million Btus)
Saudi Arabia 26%
S. Korea 3%
The U.S. uses more than the next 5 highest
consuming nations combined.
Agricultural resources & residues Wood resources & residues Agricultural & wood residues Low inventory
U.S. Renewable Energy Resource Assessment
The average American family spends only 3 to 4% of their income on energy!!