How good is the state power industry? For example, the Qinghai-Tibet AC and DC link project is one of the key projects of the Western Development and an energy artery connecting Qinghai and Tibet. The project is the highest altitude DC power transmission project in the world and has the longest length of crossing the permafrost.
Engineering, construction workers build electricity directly "in the sky".,
It is difficult to build a super power grid that covers the whole country, and the risk factor is unimaginable. However, State Power has done it. This super power grid has covered more than 400 million households with a population of nearly 1.4 billion in China.
The above is the height that national appliances can reach in more than ten years. In the 1990s, it was far from reaching the height that attracted foreign attention. If we move the time forward another twenty years, it will be a different scene.
It can be said that behind the glorious achievements in the future are the hard work and hard work of countless electricians for decades.
Time goes back to the 1950s, when China was still very poor.
But precisely because of poverty, the country should invest in infrastructure construction, and the first one to bear the brunt is electricity.
But building electricity requires two things, technology and products, and China has neither.
What should I do? The only option is to import.
At that time, everything from China Electronics, including equipment, products, design concepts, and industry standards, were all imported.
"When you buy my electrical equipment, you have to buy the lawn and faucets too!"
This is a saying that foreigners often said back then. What’s even more frustrating is that many times even if you want to import other people’s things, they won’t sell them to you, especially the best things. They won’t sell them at all, no matter what you pay.
Can't afford the money.
In 1959, the world's first 500-kilovolt DC project was officially put into operation. It was not until five years ago that the country began to build 500-kilovolt transmission lines. At that time, seven countries in the world had already taken the lead in the electricity industry.
The era of 500 kilovolts.,
At that time, the 500-kilovolt circuit breaker was a French product. In the original design, the French company did not take into account the length of the air duct of the circuit breaker, nor did it consider environmental factors such as air humidity and day-night temperature difference in southern China, as well as the compression in the air duct.
Air can easily produce water accumulation. If the moisture in the pipe cannot be drained out in time, it will block the pipe and affect the normal operation of the circuit breaker.
In addition, in addition to defects in the design, there are also problems with the product quality itself. Many Chinese may think that since we are importing foreign products, the quality must be guaranteed. In fact, this is not the case. The quality of foreign products also varies, and some
It's even a shoddy product because your country doesn't even have the same product.
Because of this experience, the employees of Dianping couldn't bear it and decided to take a path of independent research and development, completely abandoning the idea of relying on foreign technology.
It took ten years, that is, 1995, to successfully independently develop a domestic 500-kilovolt switch. Now the localization rate of domestic converter station equipment exceeds 60%.
Just after the country conquered 500 kilovolts, China Southern Electric proposed to study 100 kilovolts DC transmission technology.
This is being questioned at home and abroad, because even the current electrical technology powerhouses such as Germany, the United States, and island countries have difficulty solving the world-class problem of 100,000 volts.
But at this exhibition, the country displayed a 750-kilovolt DC transmission system model. Although it was a model, every part was lifelike.
The people attending the exhibition are all experts from various countries. No matter how realistic the model is, it is still a model, but the various data parameters cannot be adulterated. Experts can see the technical content contained in it at a glance.
There is no doubt that the country has mastered or is close to mastering the 750 kilovolt DC transmission technology, but this is far from the end. In the future, the country will move towards 100 kilovolts and 1,000 kilovolts, with a total length of tens of thousands of kilometers.
Corridors are spread all over the country, reaching up to the Qinghai-Tibet Plateau and running through undersea tunnels. From the evergreen tropics to the frigid frigid zones, towers can be seen standing everywhere, continuously delivering electricity to every corner of the motherland and serving the country.
Development provides inexhaustible motivation.
In 2013, the country's UHV AC standard voltage was recommended as the international standard voltage. The International Electrotechnical Commission and the American Institute of Electrical and Electronics Engineers successively established nine UHV working groups led by my country. The International Electrotechnical Commission was established. UHV AC Transmission System Technical Committee.
China has also become the sixth permanent member of the International Electrotechnical Commission after the United States, Germany, Britain, France and Japan, and its voice and influence in the formulation of international standards are increasing day by day.
By 2017, in the field of electricity in the world, State Electric is the undoubted leader in the world. It sets global electricity standards and has a global monopoly on many technologies. Even the U.S. power system has to use Chinese to learn from China Electric.
, the Philippines, Brazil, Portugal, Australia, Italy and other countries are responsible for the power construction of the State Electric Power Corporation.
It can be said that twenty years later, only China's electrical appliances in the world have the technology and experience to build ultra-large-scale electricity under all complex conditions. Therefore, only China in the world is the most active in saying that it wants to build intercontinental interconnection and global energy interconnection. Of course,
, the United States is strongly opposed to it, but it is incapable of doing it, so it is helpless and embarrassed.
At that time, State Electric was the first in the world to propose the concept of smart electricity because it was so awesome, which refers to the integration of advanced sensing and measurement technology, communication technology, and information technology based on physical electricity.
Technology, computer technology and control technology are highly integrated with physical electricity to form a new type of electricity.
Smart electricity aims to fully meet users' needs for electricity and optimize resource allocation, ensure the safety, reliability and economy of power supply, meet environmental constraints, ensure power quality, etc., and achieve reliable, economical, clean and interactive services for users.
Electricity supply and value-added services.
Because this smart phone was first proposed by the country, all standards are completely formulated by the country, and then brought to the world to form a unified standard, and other countries can only abide by it honestly.
Liu Lang once "feared" the Ministry of Electric Power because many companies, especially private companies, had to completely hand over their core technologies to the other party for "review and identification" when cooperating with them. As a result, the companies suffered heavy losses. This is
Outright "industry hegemony" behavior.
But Liu Lang's harsh rebuke does not mean that he does not respect the other party. The contribution made by the State Electric Power Company to the country cannot be replaced by anyone. It has earned great honor for the country in the world. It can be said that compared with those large foreign companies,
, the National Electrical Appliances Company is not inferior in any way, and even exceeds it.
Being able to achieve this step is not because of the state support behind the State Electric Co., Ltd. It is the result of decades of hard work by tens of thousands of employees. Correspondingly, there is also the State Railway Administration. This group of people also built it with countless days and nights of struggle.
They have built a powerful railway network, connecting tens of thousands of villages, towns and counties across the country, forming a unique railway network in the world. They are all admirable people and deserve to be recorded in history.11