China's CNC excitation and speed regulation technology, which was successfully developed in 2006 and obtained national patents, has been widely used in many cement enterprises such as Guangxi Huarun, Hebei Taihang, Henan Tongli, Shandong Donghua, Tianjin Zhenxing, etc. The power of this technology is 400KW. The 800KW, 1000KW, 1400KW, 1600KW, 2800KW grade motors have successfully achieved speed regulation and energy saving, and the speed control equipment has stable performance and obvious energy saving effect. The technology has been successfully applied in the high-temperature fan of 2800KW kiln tail of the new dry-process cement production line with a daily output of 5,000 tons, which indicates that China's high-voltage and high-power motors above 2000KW have made new breakthroughs in speed-saving and energy-saving technology.
It is reported that the excitation string regulation technology is independently developed by Beijing Ziyuwan Technology Co., Ltd. and has high-efficiency energy-saving technology of intellectual property. According to relevant experts, the numerical control excitation speed regulation energy-saving technology is more suitable for energy-saving transformation of high-voltage and high-power wound-type motors above 6KV, especially in the transformation of high-power wound-type motors in the cement industry. Compared with the traditional motor energy-saving technology, the CNC excitation speed regulation technology does not generate high-order harmonics for the power grid, and has the characteristics of high efficiency, energy saving, stable and reliable performance, and convenient operation and maintenance. From the perspective of practical application, it has obvious advantages in energy-saving investment, energy-saving efficiency, requirements for operating environment, equipment maintenance and maintenance costs. The energy-saving application of CNC excitation speed regulation technology on high-power wound-type motors has been recognized by China Energy Conservation Association, Cement Industry Association, cement design units and users. In January 2008, China Energy Conservation Association Energy Conservation Service Industry Committee awarded Beijing Ziyuwan Science and Technology Co., Ltd. is the "China's energy-saving service industry's most growth-oriented enterprise" and "China's energy-saving service industry contract and trustworthy enterprise", and awarded the company's China Resources Cement Fan speed control energy-saving project as "China's energy-saving service industry excellent demonstration project."
Experts in an interview said that most of China's energy is consumed by electricity, and 35%-40% of the country's total electricity consumption is consumed by electric motors. The expert further pointed out that in high-energy-consuming industries such as cement, petroleum, chemical, electric power and metallurgy, high-power high-voltage electrical equipment accounts for a large proportion. Therefore, energy-saving work for high-power high-voltage electrical equipment will become energy-saving in these industries. The center of gravity of the row. The successful application of CNC excitation speed control technology on high-power motors has opened up a new way in the field of motor energy conservation.
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