Variable Frequency Compressors

There is a shortage of energy supply in the world, how can you minimize the energy consumed for product operation, reduce your production cost and maximize the service life of your equipment? S-T series variable-frequency screw air compressor is your best choice.
If your air consumption for different shifts within 24 hours is different, and must take into account the load required for unusual intermittent peak value, you should select the compressor type on the basis of your max. air consumption. If actual air consumption is less than max. air discharge volume, the frequency inverter will reduce the output frequency and thus decrease the compressor speed and air discharge volume while maintaining a steady air supply pressure. To the contrary, the frequency inverter will increase the output frequency within the operation range and thus increase the compressor speed and air discharge volume while the air supply pressure remains unchanged. Obviously, in this case, use of variable-frequency screw air compressor will produce very good energy-saving effect.

Advantages of S-T Series Variable-frequency Air Compressor

♦ The variable-frequency air compressor can start up more even steadily than so-called soft starting (as shown in the diagram), and starting current can be improved greatly. This kind of air compressor completely avoids current peak and allows you spend less money on electrical power system.

♦ By using intrinsic super-soft starting features of frequency inverter.variable-frequency air compressor avoids current peak value, and can provide more steady and smooth starting. With pressure accuracy of the compressor being as high as 0.01 MPa, it has better energy-saving effect and more reliable performance.

♦ Reducing load by applying the speed ratio of the compressor unit, this compressor has 100% energy-saving efficiency, and can mechanical loss and production cost, and increase the body reliability. It can decrease the operation speed at partial load and thus extend the service life of the unit and effectively reduce operating noise.

♦ LED panel can indicate operating pressure, discharge temperature and preset pressure. The indicated values can be set by internal parameters, and the preset pressure can be adjusted on the panel according to the system demands.

Direct energy saving 15%-35%

♦ Running of S-T series screw air compressor at low loads will not cause energy loss;

♦ Energy loss caused due to conversion between load and unload can be avoided;

♦ Accurate pressure control of S-T series screw air compressor allows more steady pressure and lower unloading pressure and thus reduces energy consumption.;

Indirect energy saving

♦ “Steady Pressure” provided by ST series screw air compressor can bring better energy-saving effects each year;

♦ 1. As compared with other low-load air compressors, ST series screw air compressor will save energy by 5%-10%;

♦ 2. There is always a little leakage loss in compressed air system, but this loss can be minimized, for example leakage at 6 bar is less by 13%-15% than that at 7 bar;

♦ 3. Many compressed air application industries consume less air when operating at low pressure, which is similar to the effects brought about by reduced leakage.

Clear and advanced man-machine interface, with Chinese and English display

♦ Easy to operate;

♦ Large text LCD gives a clear display;

♦ Operation status and automatic fault alarm monitoring signals can be read out easily;

♦ Automatic data memory, with easy search, alternative operation function and communication function.