1. Variable frequency inverters used for fan

The fan type load is widely used in steel mills, power plants, nonferrous metals, mining, chemical, textile, chemical fiber, cement, paper and other industries. Most adopt the adjustment baffle opening to adjust the air volume, waste a lot of electric energy, adopt frequency conversion speed regulation, which can save electricity and reduce mechanical wear and prolong the life of equipment.

2. Variable frequency inverters used for pump

Pump type load, it included pumps, oil pumps, chemical pumps, mud pumps, sand pumps, etc., low-pressure medium and small capacity pumps, but also high-pressure large-capacity pumps.

Many water pump companies are in the water pump, chemical and fertilizer industries, such as chemical pumps, reciprocating pumps, mud pumps in non-ferrous metals and other industries use frequency control, which produces very good results.

3. Variable frequency inverters used for compressor

Compressors are also a wide range of applications. Low-pressure compressors are commonly used in various industrial sectors. High-pressure large-capacity compressors have many applications in steel (such as oxygen generators), mines, fertilizers, and ethylene. The use of frequency control, both bring the advantages of small starting current, power saving, and optimized equipment life.

4. Variable frequency inverters used for transport vehicle

The use of frequency conversion technology in coal mines for raw coal or steel mills is very effective. It has fast start-stop, strong overload capability, and flexible reversal. It achieves smooth coal surface and correct weight (not much or less). It basically does not require manual operation, which improves the production efficiency of raw coal and saves energy.

5. Variable frequency inverters used for Air conditioning

Office buildings, shopping malls, some supermarkets and factories have central air conditioners. In the summer, the electricity consumption is very high. In hot weather, the electricity consumption of air conditioners in Beijing, Shanghai and Shenzhen accounted for more than 40% of peak electricity. Therefore, using the Variable frequency driveS, dragging the refrigeration pump, cold water pump and fan of the air conditioning system is a very good power saving technology. At present, there are many companies that specialize in air conditioning, and the main technology is frequency conversion and power saving.

6. Variable frequency inverters used for crane and dump truck

Load torques such as cranes and dump trucks are large and require stable, frequent and reverse, and reliable. The frequency converter controls the crane and the dump truck to meet these requirements.

7. Variable frequency inverters used for elevator elevated tour vehicle

Since the elevator is a manned tool, the drag system is required to be highly reliable, and frequent acceleration and deceleration and forward and reverse rotation are required. The dynamic characteristics and reliability of the elevator are improved, and the safety feeling, comfort and efficiency of the elevator ride are increased. In the past, the elevator speed regulation DC was mostly, and in recent years, it has gradually changed to AC motor frequency conversion speed regulation, regardless of Japan or Germany. Many elevator factories in China are scrambling to use the frequency control to equip the elevators. Such as the sea Mitsubishi, Guangzhou Hitachi, Qingdao Fuji, Tianjin Otis, etc. are used AC frequency control. Many of the original elevators were also converted to frequency conversion.

8. Variable frequency inverters used for production line

Glass, ceramics, pharmaceutical, beverage, food, packaging and other production lines use frequency control, and have achieved good results.

9, Variable frequency inverters used for  injection molding machine

The injection molding machine is a key equipment for plastic processing and molding, with a large number and high power consumption. In the past, most of the power-saving methods were converted to Y-type (star type) by the △ type (triangle type) to save electricity, and the effect was general. The use of variable frequency drive control does not change the original structure of the injection molding machine, and controls the pressure or flow of several processes of the oil pump (such as clamping, clamping, injection, pressure holding, demoulding, demoulding, etc.), which can save 20%~52 %, better replaced the previous proportional valve throttle speed control mode, greatly reducing energy consumption, many injection molding plants have carried out frequency conversion transformation. When remodeling the injection molding machine, pay attention to the mold clamping acceleration, otherwise the output will be reduced, pay attention to the harmonic interference between the input terminal and the output terminal.

10. Variable frequency inverters used for mechanical

The spindle of the grinding machine has a high speed and requires a high frequency of the power supply, 200 Hz, 400 Hz or even 800 Hz. In the past, the power of the spindle motor was mostly dragged by the intermediate frequency generator set. The IF unit has large volume, low efficiency, high noise and poor precision.