0
AC (alternating current) is the primary form of electricity because it can be generated at very high voltages and sent across many, many miles of carrying lines.
Wiki User
∙ 16y ago
Add your answer:
Earn +20 pts
How many types of power stations are there?
Power plants work with ac generators called alternators, which are rotating machines driven by different forms of mechanical engine. The conventional power plant uses a heat engine, usually a turbine, driven by steam or gas. When steam is used it is produced in a boiler from pure water heated by a fuel, usually coal or oil. Hydro-electric power plants drive the alternators with an engine driven by the power of falling water. Wind power plants use the wind to turn the generators. On a power grid, all the machines run synchronously, which means they all turn at the same speed, which is 3000 rpm for a 50 Hz power system. Small generators might turn at a submultiple like 1500 rpm. Solar power plants do not use rotating machines but generate direct current from the Sun's rays. The power is then converted to AC in an inverter. The conversion process adapts itself to the basic frequency of the grid, which means in practice that solar power must be limited to a relatively low level to avoid causing instability in the grid.
How does a solar powered generator work?
A solar powered generator involves a photovoltaic module, a deep cycle rechargeable battery and a power inverter. The photovoltaic module takes in sunlight and converts it to a DC or direct current and this is stored in the battery. The battery can then be used to power household appliances by taking the power from it and converting it to alternating current or AC with the inverter. The plug in the generator puts out AC for an appliance to use.
What is needed to generate AC electricity?
An AC generator (Alternator). A rotor is turned into a magnet by what is known as 'excitation' current. The rotor then induces AC current in the stator windings as it is rotated within it. This is AC, due to the fact that the rotor has a north and south pole, which alternately induces current in the stator windings. The exitation current is provided to the rotor via slip rings. Controlling this excitation current will also control the output power by suitable control circuitry. This is the same principle, whether it is a small domestic generator, a power station, a wind turbine, or a car alternator.
Generators can produce two types of electric current?
Absolutely! Generators can indeed produce two types of electric current: alternating current (AC) and direct current (DC). Let me break it down for you. First up, we've got Alternating Current (AC). This is the kind of electricity you'll find in most homes and businesses. AC changes direction periodically, meaning the flow of electrons alternates back and forth. It's like a little dance where the electrons keep switching partners, and it's super efficient for transmitting electricity over long distances. That's why the power from your local utility company is usually AC. On the flip side, we have Direct Current (DC). This type of current flows in a constant direction, like a straight line. You'll find DC in batteries – it's the juice that keeps your gadgets powered up. While it's not as great for long-distance transmission, DC has its perks, especially for certain electronic devices that prefer a steady and unchanging flow of electricity. So, in a nutshell, generators can play both sides of the current game, producing either AC or DC, depending on the application. It's like having a versatile musician who can rock out with different tunes depending on the audience. Cool, right?
What is the power supply for ticker timer?
Our basic ticker tape timer is AC synchronous, producing dots at precise intervals every 1/60thsecond making precision measurements possible in all kinematics experiments. The body is finished. And requires a 6 V AC or 110 V AC source. Supplied with one roll of 13 MM x 154 MM and package of carbon disc.
Is ac or dc power cheaper to produce?
To produce it and distribute it, ac is much easier.
What type of current is used in power plants today?
AC is used in our power plants nowadays.
Can oil be used to produce AC?
If it is burned to power a generator then yes it can.
Does a car run on AC or DC?
The power supply in most cars is DC. The alternator may produce AC power, but it is then run through a rectifier, providing DC power.
What kind of electricity do dams create?
hydroelectric power They produce what is called 3-phase AC power.
Why will a dc motor produce v but not an ac motor?
Motors do not produce voltage, current, or power. They use them.they produce mechanical output.
What is the difference between an electic motor and an electic generator?
AC motor produce mechanical power and absorbed electric energy the power generator produce electrical power absorbed mechanical power
What is the source of electricity of a blender?
Blenders plug into electrical outlets in your home so have AC current. That electricity may come from wind power, nuclear power plants, coal power plants, solar cells, hydroelectric plants or a combination of the above.
Who created a system of transporting electricity?
Edison for DC from power plants to customers up to about a mile awayTesla for AC from power plants to customers hundreds or even thousands of miles away
Can a ac motor produce electricity?
Technically YES. But the source of power in Electric cars being DC through batteries, the motor must be DC and not AC.
Why do you need power plants?
With the advent of new technologies, we have come to use more and more power guzzling devices. Right from a laptop to an AC it requires power to run them. The second use of power plants is by industries which make them power independent from other power producing bodies. These all activities require a lot of power and thus new power plants are used time and again
What is electrical synchronization in power plants?
When two ac power supplies are to be connected to a common (bus bar) distribution, voltages, frequencies and phase angles of both power plants should be adjusted to equal values (or grid values) and connect.
