What are the Functions of the Inverter?

As Frequency Converter Manufacturers, share with you.

Frequency conversion energy saving

The energy saving of the frequency converter is mainly manifested in the application of fans and water pumps. After the fan and pump load adopts frequency conversion speed regulation, the power saving rate is 20% to 60%. This is because the actual power consumption of the fan and pump load is basically proportional to the third power of the speed. When the average flow rate required by the user is small, the fan and pump adopt frequency conversion speed regulation to reduce the speed, and the energy-saving effect is very obvious. However, traditional fans and pumps use baffles and valves for flow adjustment, the motor speed is basically the same, and the power consumption does not change much. According to statistics, the electricity consumption of fans and pump motors accounted for 31% of the national electricity consumption and 50% of the industrial electricity consumption. It is very important to use variable frequency speed regulation device on this kind of load. At present, the most successful applications include constant pressure water supply, various types of fans, central air conditioners and frequency conversion speed regulation of hydraulic pumps.

Variable Frequency Drive

Application in automation system

Since the inverter has a built-in 32-bit or 16-bit microprocessor, it has a variety of arithmetic and logic operations and intelligent control functions. The output frequency accuracy is 0.1% to 0.01%, and it is equipped with complete detection and protection links. Therefore, in the automation Widely used in the system. For example: winding, stretching, metering, and guide wire in chemical fiber industry; flat glass annealing furnace, glass furnace stirring, edge drawing machine, bottle making machine in glass industry; electric arc furnace automatic feeding, batching system and intelligent control of elevators Wait. The application of frequency converters to improve the technological level and product quality is applied to the control of CNC machine tools, automobile production lines, papermaking and elevators.

Application in improving process level and product quality

The frequency converter can also be widely used in various mechanical equipment control fields such as conveying, lifting, extrusion and machine tools. It can improve the process level and product quality, reduce the impact and noise of the equipment, and extend the service life of the equipment. After adopting frequency conversion speed control, the mechanical system is simplified, operation and control are more convenient, and some can even change the original process specifications, thereby improving the function of the entire equipment. For example, in the setting machines used in textiles and many industries, the temperature inside the machine is adjusted by changing the amount of hot air fed. The circulating fan is usually used to convey the hot air. Since the speed of the fan is constant, the amount of the hot air can only be adjusted by the damper. Failure or improper adjustment of the damper will cause the setting machine to lose control, which will affect the quality of the finished product. The circulating fan starts at high speed, and the wear between the transmission belt and the bearing is very severe, which makes the transmission belt a kind of consumable. After adopting frequency conversion speed regulation, the temperature adjustment can be realized by the frequency converter automatically adjusting the speed of the fan, which solves the product quality problem. In addition, the frequency converter can easily start the fan at low frequency and low speed and reduce the wear between the transmission belt and the bearing. It can also extend the service life of the equipment and save 40% of energy.

Realize the soft start of the motor

The hard start of the motor will not only cause serious impact on the power grid, but also require too high power grid capacity. The large current and vibration generated during the start will greatly damage the baffle and valves, and will be extremely unfavorable to the service life of equipment and pipelines. After using the inverter, the soft start function of the inverter will make the starting current change from zero, and the maximum value does not exceed the rated current, which reduces the impact on the power grid and the requirements for power supply capacity, and extends the service life of equipment and valves. It also saves equipment maintenance costs.

Our company also has Variable Frequency Drive on sale, welcome to contact us.