Power plants burn fossil fuels to heat water and make steam, which triggers complex generators inside the plant. These processes create an electromagnetic field that provides the electrical energy that people consume. A number of fossil fuels are used to make electricity, but the most common and inexpensive is coal.Know More
Power plant workers begin by heating the fossil fuel. Because coal is the cheapest to burn, it is used most often. Natural gas and petroleum may also be used as fossil fuels in power plants, but they are typically used less often because they are more expensive.
The burning fossil fuel heats water, turning it into steam. The steam travels into a turbine with thousands of blades. When the steam pushes these blades, the turbine shaft rotates at high speeds. The generator, a collection of highly wound coils, lies at one end of the turbine shaft. The rotation of the turbine causes the coils to turn, creating an electromagnetic field. Electrons begin to move; this flow of electrons is electricity.
When energy is first generated, operators transform it into the higher voltages (around 4,000 volts) used for economic transmission. When the energy approaches domestic areas, it is transformed down to a safer 100-250 voltage system.Learn More
A three-phase power supply is a special method to alternate power generation, transmission and distribution. This method establishes power supply delivery in three lines, and each line is a phase that carries equal voltage at equal frequency.Full Answer >
Since electricity is a natural occurrence, no one actually invented it. Some people have the misconception that Benjamin Franklin discovered electricity, but in truth, he only connected the dots between electricity and lightning.Full Answer >
The electromagnetic theory is a united theory of electromagnetism established by James Clerk Maxwell. This theory primarily discusses the relationships between electric field and magnetic field based from previous observations and experiments related to electricity, magnetism and optics combined.Full Answer >
The Watts formula, P=V x I, shows the relationship between volts, amps and watts. The "P" signifies power in watts, "V" denotes voltage in volts and "I" stands for the current in amps. This formula is used in electrical calculations and can be used in conjunction with Ohm's law.Full Answer >