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The potential differences produced by an alternator at a power station are limited to around 25-30 kV due to the physical size required of such machines to accommodate the machine's armature conductors. These voltages are far too low for transmission purposes.
For a given load, the higher the supply voltage, the lower the resulting load current. So very high voltages are required to transmit electrical energy, otherwise the resulting load current will cause (1) enormous voltage drops along the transmission lines, (b) large energy losses along the lines, and (3) the need for conductors with impractically-large cross-sectional areas (meaning they will be far too heavy to hang from transmission towers!).
Accordingly, the voltage generated at a power station must be 'stepped up', using Transformers, to very high voltages (in the UK, up to 400 kV; in countries where very large distances are involved, even higher than this). Energy at these voltages are then transmitted to 'load centres' (usually at the outskirts of towns or cities), where they are 'stepped down' to lower values for distribution purposes.
What else can I help you with?
Maximum generating voltage in world?
maximum generated voltage is 21KV
What are the reasons for generating energy as alternating current?
ENERGY CAN BE GENERATED ONLY AS A ALTERNATIG CURRENT.THERE IS NO WAYS OF GENERATING ENERGY AS A DC DIRECTY.IN CASE OF DC GENERATION ,AC IS GENERATED FIRST AND THEN RECTIFIED INTO DC. TO UNDERSTAND THIS CLEARLY YOU NEED TO KNOW THE WORKING OF GENERATORS. THE REASONS FOR GENERATING ENERGY AS AC IS ENERGY CANNOT BE GENERATED AS DC.
What is a biopotential?
A biopotential is a biologically or biochemically-generated potential or voltage.
Why you are generating ac not dc?
question is wrong....ac is generated in alternator <<>> The most likely reason is that there is no field voltage being generated. This is controlled by the voltage regulator. Check to see if you are getting a DC field voltage. On the voltage regulator there are terminals to different pieces of equipment on the machine. Look for the terminals that are designated F1 and F2. These should have a DC voltage on them. Also look for a potentiometer that controls the field voltage. Turn it one way and the voltage will go down and turned the other way the voltage will go up. Make sure that this potentiometer is in the correct position to allow voltage to the field coils.
How many phases are in ac electric?
A.C. is generated, transmitted, and distributed as three phase.
Why electricity not directly transmitted to residential or industrial use directly from power plant?
The main reason is that the voltage that the generator produces is not compatible with the residential and commercial voltages. The voltage generated could be in the range of 3.3, 6.6 and 11 kV. The consumer needs voltages in the range of 120/240, 120/208, 277/480 and 347/600. The second reason is that where the power is generated is usually miles from any urban areas where it is needed. From the generated voltage is it stepped up, with the use of transformers, to a much higher voltage in the range of 50 to 250 kV. The higher the transmitted voltage, the less voltage drop along the transmission lines. Once the voltage gets to the area that it will be used it is dropped back down, again with transformers, to the utility company's working voltage. This is the voltage that you use in residential, commercial and industrial applications.
What does a transformer do to a voltage in a power line?
A transformer is used to step up (increase) or step down (decrease) an alternating voltage with very little loss of energy.
Maximum generating voltage in world?
maximum generated voltage is 21KV
What are the reasons for generating energy as alternating current?
ENERGY CAN BE GENERATED ONLY AS A ALTERNATIG CURRENT.THERE IS NO WAYS OF GENERATING ENERGY AS A DC DIRECTY.IN CASE OF DC GENERATION ,AC IS GENERATED FIRST AND THEN RECTIFIED INTO DC. TO UNDERSTAND THIS CLEARLY YOU NEED TO KNOW THE WORKING OF GENERATORS. THE REASONS FOR GENERATING ENERGY AS AC IS ENERGY CANNOT BE GENERATED AS DC.
What is maximum dc voltage transmitted in India?
600kv
How do you deliver nuclear power?
Once it has been generated by a nuclear power plant, nuclear power is transmitted through high voltage power lines, just like any other form of electric power.
How does electricity get from a power plant to your home?
Electricity generated at a power plant is transmitted through high-voltage power lines to substations. At the substations, the voltage is reduced for distribution to homes through local power lines. The electricity enters your home through the meter and electrical panel.
What is a biopotential?
A biopotential is a biologically or biochemically-generated potential or voltage.
How is energy transferred to homes and industry?
Energy is typically transferred to homes and industries through the electrical grid. Electricity is generated at power plants using various sources like coal, natural gas, nuclear, or renewable energy. Once generated, the electricity is transmitted through high-voltage power lines to substations, where the voltage is lowered for distribution to homes and businesses through power lines and transformers.
Why you are generating ac not dc?
question is wrong....ac is generated in alternator <<>> The most likely reason is that there is no field voltage being generated. This is controlled by the voltage regulator. Check to see if you are getting a DC field voltage. On the voltage regulator there are terminals to different pieces of equipment on the machine. Look for the terminals that are designated F1 and F2. These should have a DC voltage on them. Also look for a potentiometer that controls the field voltage. Turn it one way and the voltage will go down and turned the other way the voltage will go up. Make sure that this potentiometer is in the correct position to allow voltage to the field coils.
How 600V is generated?
600V can be generated using a transformer to step up the voltage from a lower voltage source such as 120V or 240V. By increasing the number of windings in the transformer's coils, the voltage can be scaled up to 600V. This allows for the safe distribution of higher voltage power for industrial or commercial applications.
How many phases are in ac electric?
A.C. is generated, transmitted, and distributed as three phase.
