The world's first ± 1100 kV converter transformer at the sending end was successfully shipped! Leading world energy innovation to a new era

On June 21st, the world's first ± 1100 kV Changji-Guquan UHV DC transmission project developed by TBEA was the first ± 1100 kV converter transformer at the sending end. Shipped at production base.

The world's first ± 1100 kV converter transformer at the sending end was successfully shipped! Leading world energy innovation to a new era

All ready to go

The world's first ± 1100 kV converter transformer at the sending end was successfully shipped! Leading world energy innovation to a new era

Changji-Guquan UHV DC transmission project, the first transmitting end ± 1100 kV converter transformer

It is reported that this ± 1100 kV converter transformer was successfully trial-produced at the TBEA ± 1100 kV UHV production base on May 26, and passed all the tests at once. All performance indicators are better than the technical agreement requirements. This marks a new era in the development of UHV transmission technology in the world. This project will lead the world's energy innovation to a new era.

It is understood that the Changji-Guquan ± 1100 kV UHV DC transmission project is currently the world's highest voltage level, the largest transmission capacity, the longest transmission distance, and the most advanced UHV transmission project. HVDC transmission has the advantages of strong line transmission capacity, low loss, no need for synchronous operation of the AC systems on both sides, and small losses to the grid when a fault occurs, and is particularly suitable for long-distance point-to-point high-power transmission. As the starting point of the UHV project, the core equipment of Changji Converter Station is the converter transformer. The safe operation of the product is the key and important guarantee for the project to obtain power generation benefits.

The world's first ± 1100 kV converter transformer at the sending end was successfully shipped! Leading world energy innovation to a new era

Ready to go and do the final detailed inspection

The world's first ± 1100 kV converter transformer at the sending end was successfully shipped! Leading world energy innovation to a new era

All ready to go

The world's first ± 1100 kV converter transformer at the sending end was successfully shipped! Leading world energy innovation to a new era

Builders of ± 1100 kV converter transformers, you have worked hard

TBEA invested in high-quality, high-standard construction of the world's largest and most advanced national UHV engineering technology research center and ± 1100 kV transformer R & D and manufacturing base during the project planning period. In May 2016, by virtue of its first-class technological innovation capabilities and first-class key engineering achievements, all 14 high-end converter transformers of Changji-Guquan ± 1100 kV UHV DC project of State Grid Corporation of China won the bid. In October 2017, the production of the project products was fully launched.

The world's first ± 1100 kV converter transformer at the sending end was successfully shipped! Leading world energy innovation to a new era

State Grid Corporation Supervisory Representative Li Daguang congratulated TBEA ± 1100 kV converter transformer for one-time trial production success and smooth shipment

State Grid Corporation's manufacturing representative Li Daguang expressed sincere congratulations on the successful trial and successful delivery of the TBEA ± 1100 kV converter transformer. He said that although this product is the first time in China, there are many unknown problems, but TBEA is carefully designed, carefully organized, and carefully managed, and the entire production process can be controlled. Each performance parameter of the first product satisfies the technical agreement requirements very well, exceeding national standards. On behalf of the leaders of State Grid Corporation of China, he thanked TBEA and all staff in the field for their support and dedication, and also wished each subsequent product a pass.

The world's first ± 1100 kV converter transformer at the sending end was successfully shipped! Leading world energy innovation to a new era

TBEA Secretary and Chairman Zhang Xin speaks at the delivery ceremony

Zhang Xin, secretary of the TBEA Party Committee and chairman of the board, said that the project is the second UHV transmission project in the country to implement "Xinjiang power transmission" and a new milestone in the history of world energy. It is of great significance for promoting the development of Xinjiang's energy base, ensuring the reliable supply of electricity in East China, stimulating economic growth, and achieving green development. At the same time, it is also of great exemplary significance for promoting intercontinental interconnection and building a global energy internet.

He said: "TBEA undertakes major national key engineering product production tasks, shoulders the national task of revitalizing national industry, energy revolution and innovation. It has a great responsibility and a glorious mission. The world ’s first high-end product is once in our Xinjiang local enterprise. The successful experiment demonstrated our ability in Xinjiang, established our image in Xinjiang, made new contributions to the realization of the overall goal of social stability and long-term security in Xinjiang, congratulated the 40th anniversary of reform and opening up, congratulated the party ’s 97th birthday, and realized the great rejuvenation of the motherland. The dream of the great China is a building block. "

The world's first ± 1100 kV converter transformer at the sending end was successfully shipped! Leading world energy innovation to a new era

The chief engineer in charge of the project Wang Jian made a product introduction

Wang Jian, the chief engineer in charge of the project, said: "The products shipped this time are the world ’s first set of products, with high voltage levels and large single capacity, high technical and production difficulties, tight production time, and heavy tasks. The processing quality requirements are strict. TBEA regards the project as a life project, and has established the work goals of “successful experiment, successful commissioning, and long-term safe operation”, and strictly implements “strictly strict, detailed, and careful Youshen and Strive for Excellence 'State Grid UHV spirit, carried out scientific top-level planning before product production, mobilized the company's superior resources in the country, set up a technical research team and a special supervision team to control the entire process of production, from personnel, equipment, Process and other comprehensive guarantees. The products shipped this time are 33 meters long, 12 meters wide, and 18.5 meters high. The single unit capacity is up to 607500 kVA, which is 20% higher than the current record of the world's highest transmission capacity. In the factory test, Various indicators, such as temperature rise and partial discharge, are superior to technical agreements and national standards, and have been fully recognized by customers. At present, 13 other products have been fully entered into all production links, and will be shipped offline to the project site to ensure the realization of the project by the end of the year Put into operation. "

The world's first ± 1100 kV converter transformer at the sending end was successfully shipped! Leading world energy innovation to a new era

Successfully shipped and hit the highway

182mm Mono Solar Panel

From the upgrade of the existing 158.75 and 166 production lines, the process span of 182 solar panels is smaller, and the existing equipment and processes are more mature. Therefore, the difficulty and cost of new or upgraded production lines are lower, and the product yield rate is currently normal. PV industry experts suggest that the advantage of 182mm is that the industrial ecology is more mature, and it is the optimal size silicon wafer that meets the current development level of upstream and downstream, and is the first choice at this stage.


Sunket 182mm Solar Panel use 182mm 10BB/11BB Solar Cell, increases the wafer size, optimizes the layout profoundly and decreases the invalid power generation area.


1.Half Cell Technology

The half-cut cell design can decrease the power loss by the shadow effectively. The optimized circuit design not only realizes the maximum power output but also assures the reliability of solar panels.


2.MBB Technology

Sunket 182mm Solar Panel adopts multi-busbar technology. More busbars of the cell decrease the current transverse propagation path by 50%, effectively reduce the internal loss, and improve power of solar panels.


182mm Solar Panel,Mono Solar Panel,182mm Mono Solar Panel,Solar PV Module,Solar Panel

Wuxi Sunket New Energy Technology Co.,Ltd , https://www.sunketsolar.com