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Monday, September 27, 2021

AC Electrical Generator Basics - How electricity is generated

 

\\\Electric energy
Some dipoles receive electrical potential energy from the charges passing through them: these are the receivers!

Examples:

o resistors: these are electric wires of all kinds, incandescent lamps, heating wires for household appliances; they convert electrical energy into thermal energy;

o electric motors: they are set in motion (rotational) by driving forces; they convert electrical energy into mechanical energy and thermal energy;

o electrolysers and accumulators being recharged: they convert electrical energy into chemical energy.
Other dipoles provide electrical potential energy to the charges passing through it:
these are the generators!

Examples:
o batteries and accumulators being discharged: they transform the chemical energy of a chemical body they contain into electrical energy and thermal energy;
o dynamos and alternators: they transform mechanical energy into electrical energy and thermal energy;
o photoelectric, photovoltaic cells: they convert radiant energy into electrical energy;

o Power supply boxes and transformers: they transform electrical energy at a voltage u1 into electrical energy at a different voltage u2 and into thermal energy.

Conclusions:
o Electric energy is called the electrical potential energy exchanged between the loads and the generators / receivers that they pass through.
o For all receivers and generators, there is energy conservation!
o For dipoles other than those specifically intended to produce thermal energy, the appearance of thermal energy by the Joule effect normally constitutes a
"Loss of energy"!

 

\\\Electric energy
Some dipoles receive electrical potential energy from the charges passing through them: these are the receivers!

Examples:

o resistors: these are electric wires of all kinds, incandescent lamps, heating wires for household appliances; they convert electrical energy into thermal energy;

o electric motors: they are set in motion (rotational) by driving forces; they convert electrical energy into mechanical energy and thermal energy;

o electrolysers and accumulators being recharged: they convert electrical energy into chemical energy.
Other dipoles provide electrical potential energy to the charges passing through it:
these are the generators!

Examples:
o batteries and accumulators being discharged: they transform the chemical energy of a chemical body they contain into electrical energy and thermal energy;
o dynamos and alternators: they transform mechanical energy into electrical energy and thermal energy;
o photoelectric, photovoltaic cells: they convert radiant energy into electrical energy;

o Power supply boxes and transformers: they transform electrical energy at a voltage u1 into electrical energy at a different voltage u2 and into thermal energy.

Conclusions:
o Electric energy is called the electrical potential energy exchanged between the loads and the generators / receivers that they pass through.
o For all receivers and generators, there is energy conservation!
o For dipoles other than those specifically intended to produce thermal energy, the appearance of thermal energy by the Joule effect normally constitutes a
"Loss of energy"!

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