The primary distinction between the two is the voltage level at which electricity moves in each stage.
You may draw a simplified diagram of such a system to support your answer, describe each component. What is the term name used to refer to such system. Also, suggest who would be the best custodian of such a system and explain why?
Generation stage Transmission stage Distribution stage Figure Transmission line connected to one another The diagram above shows a typical transmission line that is interconnected with one another. This is commonly known as the grid, or in UK, more specifically known as the national grid.
There are 3 stages that separate this transmission and distribution system. The generation stage, the transmission stage and the distribution stage.
Generation stage The generation of electricity is either done by a power station or from renewable energy farms. The voltage is generated at 25kV and then goes through a step up transformer to increase the voltage of the power generated. Transmission stage The transmission lines are typically at a high voltage, ranging from kV, kV, kV, kV and kV.
They are commonly a three phase alternating current. As power generating stations are usually located far from the consumers, electricity has to travel a great distance. To reduce the energy lost during a lost distance transmission, electricity is transmitted at a high voltage.
Distribution stage The distribution stage consists of a substation step down transformer to bring down the voltage level to a more accessible level for end consumers.
The consumers are identified as the Sub- transmission customers at 26kV and 69kV, industrial customers are identified as Primary customers 13kV and 4kV and finally, residential customers are secondary customers V and V. While it is possibly easier to view the concept based on this simplified diagram, a real power distribution and transmission line is usually much more complex.
Structure of Power supply and network The diagram above shows a more complex real life power transmission and distribution system.
From the diagram, it can be seen that the generation stage consist of several sources; Thermal power station, nuclear power station and hydro power station. This then goes to the extra-high voltage substation, which works as a step-up transformer.
From the transmission line, electricity is then transferred to the primary substation, where is further segregates for distribution usage for railroads, smaller substations and to very large factories. More substations that act as transformer exist to step down the voltage to the necessary consumer, as different consumers require different power rating.
The grid however, cannot store electricity. Therefore, a good understanding of electricity supply and demand is needed, and must be controlled with a complex and accurate control system. In order to prevent blackouts from happening, the grid is connected regionally, nationally and sometimes even continental connection exists.
This is to provide multiple alternatives for the power to flow if any fault or breakdown occurs.
|Electricity generation, transmission and distribution | Vishul Suresh - regardbouddhiste.com||Electric Generation The electricity generation sequence involves taking charge from the Earth, doing work on it to give it energy expressed in terms of voltagetransporting the energy via a distribution system, using the energy, and dumping the spent charge back to the Earth. The Earth acts as a charge reservoir and reference potential for the energy transfer process.|
|Electricity generation, transmission and distribution | Vishul Suresh - regardbouddhiste.com||Each stage must be understood generally to any electrical engineer and here we will give a general overview of these stages as follows:|
|PJM Learning Center - Transmission & Distribution||Each stage must be understood generally to any electrical engineer and here we will give a general overview of these stages as follows: Electricity generation is the process of generating electric energy from other forms of energy.|
Due to this, it is only natural that power transmission is controlled by the government agencies. Government agencies will have the necessary influence to ensure that every region receives electricity as the demand requires, without any profit made to be factored in. However, the generation and distribution stages can be controlled by private companies.
The government can provide incentives to companies that are keen to operate a renewable energy plant. This move will further reduce the operational cost of the government. Having the distribution area to be controlled by local companies will also allow easier maintenance. In an event of a breakdown, the distribution company can immediately attend to it as they would be closer to location and easily available.
A transformer function in electricity distribution and transmission is to transform the voltage either higher, or lower. This is done by applying the principle of magnetic induction between coils to convert voltage before transmission or distribution.
Electrical transformers usually contain a ferromagnetic core with two or more coils called windings. A current change in the primary winding creates a magnetic field in the core. The core then multiplies this field and couples the most of the flux through the secondary windings of the transformer.
This will induce the emf of the secondary coil. Diagram of a simple transformer Generation stage Electrical power is generated at a low voltage level at the generation station for cost effectiveness. Voltage is then increased to reduce the electric current of the power.Electricity stages in Electricity distribution is the final stage in the delivery (before retail) of electricity to end users.
A distribution system's network carries electricity from the transmission system and delivers it . Electric Generation. The electricity generation sequence involves taking charge from the Earth, doing work on it to give it energy (expressed in terms of voltage), transporting the energy via a distribution system, using the energy, and dumping the spent charge back to the Earth.
This page focuses on electricity distribution—the final stage in electricity delivery. Distribution is the most familiar portion of electricity supply—we see the power lines that run along streets and reach our homes, we pay electricity bills to distribution companies, and we deal with those companies when bad weather knocks out our power.
After electricity is generated at a power plant and transmitted on high-voltage power lines, it is then distributed to our homes and businesses on local power distribution lines. This page focuses on electricity distribution —the final stage in electricity delivery.
Electric Generation. The electricity generation sequence involves taking charge from the Earth, doing work on it to give it energy (expressed in terms of voltage), transporting the energy via a distribution system, using the energy, and dumping the spent charge back to the Earth. Electricity is delivered to consumers through a complex network.
(step down) voltages to adjust to the different stages of the journey from the power plant on long-distance transmission lines to distribution lines that carry electricity to homes and businesses.