Nanjing Electric Million Volt and Dry Bushing Pass National Appraisal
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Five new products, such as 1100kV oil-paper-capacitor transformer bushing independently developed by Nanjing Electric (Group) Co., Ltd. and Nanjing Electric High-voltage Casing Co., Ltd., have recently passed national-level technical appraisal, and the comprehensive technical performance of products has reached the international advanced level of similar products. .
Recently, China Machinery Industry Federation organized a new product technology appraisal meeting in Nanjing, 1100kV oil-paper capacitive transformer bushing independently developed by Nanjing Electric, ±400kV vacuum glued fiber capacitor type dry DC wall bushing, 550kV vacuum glue Five new products of immersed fiber dry capacitor transformer bushing, GIS bushing and oil-SF 6 bushing were nationally certified. The former Vice Minister of the Ministry of Machinery Industry Lu Yanwei and other leaders attended the appraisal meeting, and Bai Deliang, the chairman of the Baiyun Electric Group and Nanjing Electric, gave a welcome speech.
Lu Yanxi said that Nanjing Electric has been relentlessly conducting product research and development and technological innovation for many years, and it is very difficult to achieve today's results. The localization of casing is the last highland in China's electrical industry. It is hoped that Nanjing Electric will make greater contributions to the localization of casing in the future.
More than 40 leaders and experts from State Grid Corporation, China Southern Power Grid Corporation, Xi'an High Voltage Apparatus Research Institute, China Electric Power Research Institute, State Grid Electric Power Research Institute, and Hubei Electric Power Academy participated in the appraisal meeting.
The 23 experts from the Chinese Academy of Engineering academician Li Lizhen as the chairman of the committee formed an appraisal committee. The appraisal committee heard five product development summary reports, reviewed the identification materials, and conducted on-site sampling.
Experts appraisal by the appraisal committee: 1100kV oil-paper capacitive transformer bushings have reasonable structural design, good process performance, excellent electrical performance, small partial discharge, low dielectric loss and strong seismic resistance; ±400kV vacuum-adhesive fiber-capacitor dry DC The product design of the wall bushing is reasonable, the pressure of SF 6 gas is small, and the current carrying capacity is strong; the overall structure design of the 550kV vacuum plastic fiber dry capacitor series is reasonable, the material has wide temperature range, high mechanical strength and strong earthquake resistance. . The comprehensive technical performance of these products has reached the international advanced level of similar products. The dry casing capacitor core is manufactured by vacuum impregnating fiber technology, which is the first in the world. It is agreed to pass the appraisal and it is recommended to run the net.
Nanjing Electric is the birthplace of China's first high-voltage capacitor casing. It has been in the development and production of high-voltage capacitor casing for nearly 60 years. In 2007, he independently developed a million-volt casing and passed the national appraisal. In 2015, Nanjing Electric undertook the central budget project initiated by the National Development and Reform Commission—the Nanjing High-voltage, UHV AC and DC casing industrialization project was completed and put into operation. The planned production capacity is an annual output of 17,000 sets of AC and DC casings. .