ELECTRICAL ENERGY

Electrical energy is a form of energy that is transported by an electrical current. Is very common for two reasons:
· It can be easily transformed into other types of energy.
· It can be transported over long distances.

- Electric power stations.
A power station is a place where energy from natural resources is transformed into energy that we can consume. If the energy obtained is electricity, it is called an electrical power station. The electric power stations use generators to transform the energy. The  generators are called alternators. Usually has a stationary part called stator and a moving part called a rotor. A turbine turns the axis of the rotor, which generates an alternating electric current.

- The transportation and distribution of electricity.
Electrical energy is transported from power stations to the places where it is needed.
The transportation includes:
· Raising the voltage: it must be transported over long distances, so the voltage is raised to avoid the loss of energy as heat.
· High voltage lines: the lines are installed on towers.
· Reducing the voltage: the substations are installed between high voltage lines and final consumers. Use transformers to reduce the power to lower voltages.
· Power is distributed to industries and urban areas.