The electricity is used to generate electricity through the power plant and enter the substation to increase the voltage , So that the electric energy can be sent farther, the line is transmitted to the distant place through the transmission tower.
Then the voltage is reduced through the substation for use in factories and large shopping malls, and then the voltage is reduced even lower through the transformer for home use.
How fast is the electricity?
Power transmission is the “sixth mode of transportation” after road, railway, waterway, air and pipeline transportation.
The electric field is transmitted at the speed of light of 300,000 kilometers per second, and power generation, transmission, distribution, and use of electricity are completed at the same time. In order to reliably supply power, optimize resources, and reduce electricity costs, we connect transmission lines into a large power grid for people to use.
The propagation speed of the electric field can circle the earth almost 8 times per second.
Why do we need to transform?
People can store water in a tank, but electricity cannot be stored. It must be manufactured in an instant and transported through wires.
In order to allow the current to travel farther, it is necessary to increase the voltage of the electricity. After the current flows out of the booster substation, it enters the high-voltage line.
The high-voltage lines are far away from the ground and are erected on huge iron towers to send electricity from the power station to various places.
What are the energy sources that can be generated?
The energy that can be generated is mainly divided into traditional energy and renewable energy.
My country is currently mainly relying on traditional energy sources for power generation. Traditional energy sources include coal, oil, natural gas, etc.; renewable energy sources include nuclear energy, hydropower, geothermal energy, solar energy, and wind energy.
What is “power transmission from west to east”?
The western region of my country is rich in water resources and lacks development; the eastern region has a developed economy and lacks energy. Through the energy development strategy of “power transmission from the west to the east”, the development of hydropower and thermal power in the west and transmission to the eastern regions where power is scarce has not only provided a new historical opportunity for western provinces and regions to transform their advantages in power resources into economic advantages, but also alleviated them. The current situation of power shortage in the east has promoted the optimal allocation of a wide range of resources to achieve the best use of limited resources.
Why do we need to patrol?
Line workers patrol the power tower to check whether the equipment is intact. If any damage is found, report to the higher-level department for emergency repairs so as not to delay the normal transmission of power. Because some lines have to cross mountains and rivers, or between lofty mountains, the line inspection work is very difficult.
After the UHV line inspector boarded the high-voltage line, the distance between the cable under his feet and the ground was 12 meters and the highest was 800 meters. Psychological quality and physical ability must be absolutely excellent.
What to do if the transmission line encounters ice and snow disasters?
Snowstorms will cause ice to form on the power lines, and some towers collapse to the ground because they cannot bear the gravity of the ice and snow. Now the newly developed DC ice melting device is installed on the icing line, and the ice and snow can be melted little by little.
Is there radiation from high-voltage lines?
Many people wonder whether the electromagnetic environment around power transmission and transformation facilities is safe. In fact, the power frequency of power transmission and transformation facilities in our country is 50 Hz. Only the power with a frequency of more than 3000 Hz will spread and form radiation in the form of electromagnetic waves. Therefore, there is no need to worry about the impact of substations or high-voltage power lines on health and safety.
What does 1 kWh of electricity do?
One kilowatt-hour of electricity that can run the most: The coolest 1 kilowatt-hour of electricity for an electric bicycle to run about 80 kilometers: ordinary electric fans run for about 15 hours, the cleanest 1 kilowatt-hour of electricity: 9 watts of energy-saving lamps are on for more than 100 hours, the most entertaining 1 kilowatt-hour of electricity: Watching TV for about 10 hours, the most thirst-quenching 1 kWh: boiling about 8 liters of water, the most heat-reducing 1 kWh: producing about 15 bottles of beer, the most warmth 1 kWh: weaving about 10 meters.
If each person saves 1 kWh per day What is the effect of electricity?
With a population of 1.33 billion in my country, it can save 1.33 billion kilowatt-hours of electricity a year. Assuming that 1 kilowatt-hour of electricity is 0.61 yuan, then 13.3*365 = 485.45 billion kilowatt-hours; 4854.5*0.61 ≈ 296.12 billion yuan. Taking Guangzhou’s annual electricity consumption of 63.751 billion kWh, 4854.5÷637.51 ≈ 7.6 years, the electricity saved in one year is enough for Guangzhou to use 7.6 years.
It takes 0.3 kilograms of standard coal to generate 1 kilowatt-hour of electricity, which will produce 0.8 kilograms of carbon dioxide. According to the above algorithm: 4854.5*0.8 = 388.36 billion kilograms = 38836 million tons, which can reduce carbon dioxide emissions by 38836 million tons.