First full load operation! The world's first kilometer level superconductor breaks the record again, with a maximum of 2160 amperes engineering | Transmission | Record

Release time:Apr 15, 2024 00:33 AM

At 12:30 today, with the operating current parameter reaching 2160.12 amperes, the world's first 35 kV kilometer level superconducting transmission demonstration project achieved full load operation for the first time, breaking the record for the maximum actual operating capacity of commercial superconducting transmission projects in China.

The 35 kV kilometer level superconducting transmission demonstration project was successfully put into operation in December 2021. It is currently the world's largest fully commercialized superconducting transmission project with the longest transmission capacity, the longest distance, and the largest number of joints. It is also the only kilometer level superconducting transmission project that uses full pipe laying. So far, it has been operating safely and stably for over 600 days. The operation of this project has set a precedent for the operation of kilometer level superconducting cables in the core areas of large cities, accelerated the localization of the entire superconducting industry chain, and greatly enhanced China's international influence in the field of superconducting transmission. Since its operation, it has supplied nearly 300 million kilowatt hours of electricity to 49000 users in the Xujiahui commercial district, Shanghai Sports Center, and other areas within the power supply area.

State Grid Shanghai Electric Power conducted a high-load test of over 1000 amperes for 9 consecutive hours on the superconducting transmission project in July last year, preliminarily verifying the ability of superconducting cables to operate under high loads. In order to further verify the design current carrying capacity and ultimate bearing capacity of the superconducting transmission project at 2200 amperes, and with all conditions met and ensuring reliable power supply to users, State Grid Shanghai Electric Power adjusted the power grid operation mode from 3 a.m. on August 17th to achieve the concentration of 1090 ampere electricity load to the superconducting transmission project.


First full load operation! The world's first kilometer level superconductor breaks the record again, with a maximum of 2160 amperes engineering | Transmission | Record

From 7 this morning until the time of publication, the superconducting transmission project has been operating at high load for over 10 hours, with a maximum current of 2160.12 amperes. Important parameters such as voltage, frequency, and cooling system power have been maintained within normal ranges, and all systems are operating well. The overall reliability of the project has been comprehensively verified.

It is understood that under full load operation, one superconducting cable is equivalent to the total operation of 4 to 6 ordinary cables of the same voltage level, which can save 70% of underground space and improve energy supply efficiency by 400%. At the same time, a 35 kV superconducting cable is approximately equivalent to the energy supply capacity of a 220 kV line and a main transformer of the same voltage level, which can significantly reduce the space required for the construction of high-voltage substations and provide a commercially valuable feasible solution for tapping into the energy supply potential of the core areas of mega cities.

In the next stage, State Grid Shanghai Electric Power will also explore more superconducting application scenarios based on actual needs, promote the application of superconducting transmission technology in the central urban area, explore more typical application scenarios, and promote related innovation and continuous improvement of core technologies.


First full load operation! The world's first kilometer level superconductor breaks the record again, with a maximum of 2160 amperes engineering | Transmission | Record
What new concepts are reflected in the concept of "strengthening the body and keeping fit"? For the first time in the history of Shanghai Lupu Bridge, structural maintenance has been quietly completed for the Lupu Bridge | Bridge | Concept
What new concepts are reflected in the concept of "strengthening the body and keeping fit"? For the first time in the history of Shanghai Lupu Bridge, structural maintenance has been quietly completed for the Lupu Bridge | Bridge | Concept

The Lupu Bridge, the sixth bridge on the Huangpu River in Shanghai and known as the "world's largest arch," has recently completed its first structural repair since its construction. Since 2015, Shanghai's urban bridges have entered a peak maintenance period, with several iconic bridges undergoing maintenance and renovation, including Zhejiang Road Bridge, Nanpu Bridge, Yangpu Bridge, Songpu Bridge, etc. Why did the Lupu Bridge, which is younger than them, start "strengthening and keeping fit" early on? The Jiefang Daily Shangguan News reporter learned that after this maintenance, the Lupu Bridge still needs to consider upgrading, reflecting the new concept of urban municipal facility operation. How long can disease removal last? June 28th is the 20th anniversary of the opening and operation of the Lupu Bridge. Why did a young bridge who had just turned 20 start maintenance work early? The design period of the main structure of Lupu Bridge is 1 year

More than 25000 daily road cleaning personnel are dispatched, and the Dragon Boat Festival holiday park receives 1.55 million visitors. Forest | Facilities | Personnel
More than 25000 daily road cleaning personnel are dispatched, and the Dragon Boat Festival holiday park receives 1.55 million visitors. Forest | Facilities | Personnel

The Dragon Boat Festival holiday has been affected by rainy weather, resulting in a decrease in the number of visitors to Shanghai parks compared to the same period in previous years. The Shanghai Greening and Urban Appearance Bureau announced today that during the Dragon Boat Festival holiday, Shanghai Park received a total of 1.5536 million visitors. The holiday coincides with heavy rainfall, and the Shanghai greening and urban landscape industry adheres to the principle of "safety first, constant preparedness, prevention as the main focus, and full efforts to rescue". It actively responds to conditions such as heavy rainfall and thunderstorms and strong winds, and arranges frontline workers to arrive at work in advance within three days. More than 25000 road cleaning personnel are dispatched daily, and key areas such as bus hubs, scenic areas, subway station entrances and exits, and large commercial districts are quickly cleaned and cleaned. Garbage and fallen leaves around drainage outlets are promptly removed to ensure the travel of citizens. The Shanghai Greening and Forestry Department tied up new types of trees in advance, cleaned up dead branches and fallen leaves in ditches, and cleared forest drainage

The consumption scene of Xujiahui Nightlife Festival continues to be updated, and the more exciting the night, the more local | Consumption | Xujiahui
The consumption scene of Xujiahui Nightlife Festival continues to be updated, and the more exciting the night, the more local | Consumption | Xujiahui

"Night economy" is a barometer of urban vitality. As one of the national level night culture and tourism consumption clusters, since the opening of the 2023 Shanghai Nightlife Festival, the consumption scenes of "sports+", "local+", and "trend+" have continued to innovate in Xujiahui Nightlife Festival, bringing a new consumption experience of "more exciting the night" to the general public and tourists. As one of the first sports industry clusters in Shanghai, the "2023 Xuhui District Sports Consumption Carnival" was launched from June 9th to 11th in the Xujiahui commercial district. During this 3-day carnival, more than 30 famous sports brands, leading sports enterprises in Shanghai, and characteristic sports institutions were shortlisted for the event. In addition, Shanghai Free Fighting Amateur Open, China Coordinate Shanghai Xuhui Directional Outdoor Challenge, Xuhui District Basketball Season Finals, One Dart Throwing Victory Dart Challenge, etc

How to play with the soaring prices of European tours? "Spending less money to visit more places" can still achieve world | Europe | European tours
How to play with the soaring prices of European tours? "Spending less money to visit more places" can still achieve world | Europe | European tours

After three years of the epidemic, the country has reopened and the outside world has changed a lot. For Chinese travelers, inflation in many countries around the world and the European energy crisis have caused the cost of European travel to rise sharply. In the face of such a new situation, at the "2023 European Travel Carnival" that kicked off in the shopping street of Jing'an Temple Station of Shanghai Metro today, tourism practitioners put forward the concept of "Travelmoreforless" and strive to provide more customized travel routes for tourists who prefer characteristic routes. This European Travel Carnival is the fourth "May 5 Shopping Festival" and one of the important activities of the "Shanghai Import Hi Shopping Festival. From Switzerland, UK, Croatia, Poland, Norway, Denmark, UK, Hamburg, Flanders, Belgium, Sweden, Portugal, etc

What does the Lujiazui Forum rely on to attract global attention? Over the past 15 years, the forum has focused on economics, finance, and other related topics
What does the Lujiazui Forum rely on to attract global attention? Over the past 15 years, the forum has focused on economics, finance, and other related topics

Tomorrow, the 14th Lujiazui Forum will open in Shanghai. Since its establishment 15 years ago, this high-end dialogue and exchange platform in the financial field has become a business card for Shanghai and also a business card for China's finance to go global. An interesting coincidence is that the first Lujiazui Forum started in 2008, when people were concerned about when the global economy could improve and recover under the impact of the financial crisis. And what everyone is more concerned about in this forum is obviously how finance can help global economic recovery after the epidemic. The questions are similar, but the answers are not exactly the same. Every time global financial professionals come to the Lujiazui Forum, they are searching for answers to financial development issues in the real world. Over the past 15 years, some answers have gradually become clear, while others are still being explored. Perhaps this is why the Lujiazui Forum has caught the world's attention