With the advent of the 3G era, the influence of the Internet has become more and more popular, and it has spread to people's lives, work, and entertainment. The 3G network stands for *** The Internet brings together the top technologies of all industries to meet the needs of all aspects of people. The rapid development of China's 3G has enabled Mr. Zhang to see the potential market value in this field.
Polaris Hydropower Network News: On January 21st, the contract for the complete set of electromechanical equipment for the Vietnam Dong Nai 5 Hydropower Station, which was jointly participated by the East China Survey and Design Institute of China Power Construction Group and Tianjin Alstom in the form of a joint venture, was formally signed. This project is the fourth electromechanical equipment contract for the hydropower station obtained by Huadong Institute and Tianjin Alstom in cooperation with the Vietnamese market.
Polaris Energy Conservation and Environmental Protection News: On January 7, *** publicized the "Recommended Catalogue of Energy-saving Electromechanical Equipment (Products) (Fourth Batch)" (consultation draft), including transformers, motors, industrial boilers, plastic machinery, 9 categories of 192 equipment (products) such as compressors, refrigeration, pumps, fans, and heat treatment.
Scientists at Florida State University have found that artificially triggered photosynthesis in synthetic materials can convert CO2, the main component of greenhouse gases, into clean air, while generating energy, with great potential for improving air quality and creating clean energy. This achievement was published in the most recent issue of the Journal of Materials Chemistry.
At present, there are many kinds of domestic electromechanical products, but in general, the system efficiency is relatively low, and it is in an inefficient operation for a long time. Some enterprises that produce electromechanical systems lack understanding of the economic benefits brought by electromechanical systems, or have obstacles to the technical problems of electromechanical energy-saving retrofits. The industry believes that although energy-saving electromechanical equipment has been in a state of coldness and heat for a long time, under the promotion of low-carbon, energy-saving and emission-reduction policies, the promotion and application of energy-saving electromechanical equipment will surely make substantial progress.
1. The purpose of using frequency conversion; constant voltage control or constant current control.
2, the load type of the inverter; such as the vane pump or the volume pump, pay special attention to the performance curve of the load, the performance curve determines the way of application.
3. The matching problem between the inverter and the load;
The frequency converter allows the motor drive system to achieve two wishes. One is to make the motor achieve higher efficiency operation; the other is to make the motor controllable, which also avoids manpower. But the problem before the engineer is: There are so many types of motor loads, and the performance requirements of the equipped inverters are very different. How to choose the right inverter for the motor?