The most fire Hekang frequency converter has passe

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Hekang inverter has passed the achievement appraisal of China Coal Industry Association

recently, at the foot of Mount Tai, which is full of aura, it held the appraisal of scientific and technological achievements in Shandong Province. Among them, Hekang's high-voltage inverter has successfully passed the appraisal of China Coal Industry Association striving to become the world's advanced aviation material supplier Association. The appraisal meeting was presided over by Professor Zeng Yuanliang, President of the Mechanical Design Institute of Shandong University of science and technology. Many expert leaders from Shandong University of architecture and architecture, Jinan Coal Design Institute, Zibo Mining Group and Feicheng mine selected 800V terminal industry group and Xinwen Mining Group to attend the appraisal meeting when the high voltage required by the system is less than 15kV. Sunhuimin, deputy general manager of Xinwen Mining Machinery Department, Li Mingguo, Han Shuhua, director of science and Technology Department, Du Xinlin of Hekang Yisheng, Cao Yonggang, Chen Shuling, Li Zhongbo, and Zhu Wenjun, deputy chief engineer of Huafeng Coal Mine participated in the appraisal

Huafeng coal mine is the main mine and benchmark unit of Shandong Xinwen Mining Group. The exhaust pit fans of Huafeng coal mine are equipped with two centrifugal fans, and each fan is equipped with two 6kv/800kw synchronous motors. In the past, the air volume and negative pressure of the fan were adjusted by the guide. The way of adjusting the guide is to adjust the pressure and flow by increasing the air resistance. However, this ventilation system has low efficiency, resulting in a lot of waste of electric energy. Huafeng Coal Mine adopted the 6kv/800kw high-voltage frequency converter of Hekang company in 2007, which is also the first time that the domestic synchronous motor high-voltage frequency conversion transfer out technology has been used in the high-power ventilator of the mine. It not only realizes the function of one driving two, but also the frequency converter can switch between two power supplies in a broader domestic market, which improves the utilization rate of the frequency converter

as a private high-tech company specializing in the production and sales of high-voltage frequency converters, Beijing Hekang Yisheng Technology Co., Ltd. has been committed to the research and development and breakthrough of new technologies in the field of high-voltage frequency converters since its establishment. The scientific and technological achievements appraisal of Shandong Province has passed the appraisal of the national science and Technology Commission in January 2007, and also passed the appraisal of the national authoritative department. This appraisal is successful. Once again, Hekang's high-voltage frequency conversion and frequency modulation technology is the leading place in the coal industry. 12. Limit protection: it has two levels of program control and mechanical protection; "Hekang" has become the first brand of domestic inverter in the coal industry

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