Ukrainian High-Pressure Affects New Products

Background: On October 23, entrusted by the National Energy Administration, China Machinery Industry Federation organized an appraisal meeting to identify the UHV step-up transformer developed by Shandong Electric Power Equipment Co., Ltd. Representatives from the National Energy Administration, the China Machinery Industry Federation, the two major power grid companies and the five major power generation groups gathered at the scene, paying special attention to UHV technology innovation.

The identification of UHV step-up transformers was scheduled on October 23 at Beijing Capital Hotel. It was raining that morning. Hu Shuqing walked into the conference room against the autumn rain and was shocked. The venue was large and the seats were quite numerous. Looking at the famous brand at the table, she found that the National Energy Administration, the China Machinery Industry Federation, the two major power grid companies, and the five major power generation groups all attended the appraisal meeting.

Hu Shuqing is the organizer of the appraisal party, the deputy director of the major equipment office of China Machine Vision, and has participated in numerous appraisal meetings. This time, she thinks, people seem to have more. Obviously, the presence of so many representatives from different fields is enough to prove that all parties pay high attention to the U.S.

A group full of expectations for UHV

At 9 o'clock, the appraisal officially began. Many representatives spoke in succession to let people understand that this is a group of people who are full of hope for the U.S.

The first evaluation of the development of UHV equipment was from the government department representative, Li Ye, Director of the Energy Conservation and Technology Equipment Division of the National Energy Administration.

He sat in the center of the podium and looked up and swept forward. In front of the right, representatives of the research and development units of China Electric Power Technology Equipment Co., Ltd. and its subsidiary Shandong Electric Power Equipment Co., Ltd., representatives of power grid companies, and representatives of power generation groups looked at him; in front of the left, professors of the State Grid Electric Power Research Institute Fu Xinian, China Zhang Tao, chief engineer of Huadian Group, and Shu Lianyi, professor-level senior engineer of the Changjiang Water Resources Commission, looked at him. Those who have been engaged in electric power business for many years are waiting for Li Ye to make an evaluation for the development of UHV and UHV equipment.

“There are not many appraisals organized by the National Energy Administration,” said Li Ye. “Not many times are aimed at major equipment.” Obviously, the UHV step-up transformer that was identified was considered to be A major equipment.

Li Ye said: “In the major scientific and technological progress projects I have experienced, UHV projects have done a better job. UHV projects have driven technological innovations in the equipment, especially the establishment of UHV technical systems. This result is very important. ."

Li Ye did not directly comment on UHV step-up transformers, but the link between this equipment and the UHV project was clearly expressed.

Therefore, the member of the State Grid Corporation of China, deputy general manager Shu Yinhao, said at the meeting: “Using UHV engineering to drive the technological development of the equipment manufacturing industry to achieve the progress of 500 kV power transmission and transformation equipment, we have achieved these two missions. ."

This is the truth. Several roll ups were erected around the venue. The 500 kV, 750 kV and 1000 kV step-up transformers developed by China Electric Equipment Corporation were introduced above. These products, the same technology, continue to increase the voltage level.

Cai Weici, Executive Vice President of China Machine Co., has introduced the topic of UHV in-depth: “Today we are here to participate in the appraisal meeting for UHV booster transformers. I also participated in the Pinggao Group’s switchgear product appraisal meeting a few days ago. This made me We felt that the UHV project had played a role in the development of high-end equipment. We supported innovation and we also felt that companies are pursuing innovation."

A group of people who care about the product itself

The protagonist of the appraisal meeting is the UHV step-up transformer, a device that can directly integrate the power generated by the power plant into the UHV power grid. In terms of how to view this product, equipment development companies and experts are obviously different from those of government, industry agencies, and power grid companies.

The full name of the product is DFP—400000/1000 UHV step-up transformer. The technicians of Shandong Electric Power Equipment Co., Ltd. explained that those numbers mean 400,000 kVA and 1000 kV. Each time they see the name, they think of them. With less than half a year, it created a record of the shortest R&D time.

When Wei Qinghai, general manager of China Electric Power Equipment Co., Ltd. spoke about this equipment, he considered it "an important milestone in the development of UHV equipment for the company." After more than one year of establishment, China Light & Electrical Equipment Co., Ltd. achieved a major breakthrough in UHV AC transformers following the UHV switch and converter valve.

For the 15 transformer industry experts present, it represents a new structural design. “The iron core adopts a single-phase four-column structure, and the high- and low-voltage coils adopt a parallel structure with two main columns, and a single variable-frequency box structure with high-pressure winding end pressure regulation...” 15 experts discussed the word-by-word method in the discussion of nearly one hour. Such as "coils" or "high and low voltage coils", whether to join "total box" and so on.

Expert of the appraisal committee and Professor Gao Xiaogong of the China Electric Power Research Institute said: “We must express its features and highlight its distinctive features.”

The final conclusion of the discussion is that the product structure is reasonable, the insulation is reliable, the partial discharge is small, the loss, temperature rise and noise are low. The main performance indicators have reached the international advanced level and can be put into production.

Applause, the product passed the appraisal. The development unit is pleased that representatives of the five major power generation groups are equally happy. “We are very concerned because we have to send a lot of electricity on a large scale with the construction of energy bases. The successful development of ultra-high voltage step-up transformers will certainly increase the power transmission capacity.”

Apart from being happy, there are also cautious people. For two elderly people who devoted their lives to electricity, they could not help but remind everyone to pay attention to something.

Zhu Yinghao, academician of the Chinese Academy of Engineering, said: “The localization of UHV equipment is already very high, but we must make further efforts in terms of raw materials. For example, the quality of localized UHV casings still has room for improvement. Therefore, manufacturing companies should continue to pay attention to raw materials. problem."

Lu Yanzheng, the deputy minister of the Ministry of Machinery Industry, said: "In our country, there are some very powerful institutions that research common technologies. Enterprises can make full use of them to provide technical support instead of relying solely on their own strength."

These suggestions are all due to what they saw and heard on the product appraisal site. They are worth considering. In short, it is now a good time for UHV equipment manufacturers to show their talents. The great prospects of UHV projects are waiting for everyone to be smart.