1, in terms of reliability and stability, IF machine is stronger than high-frequency machine; 2, in terms of environmental adaptability, high-frequency machine is stronger than IF machine; 3, in terms of the load on the zero-ground voltage requirements, IF machine is stronger than high-frequency machine. 4, structurally, IF machine UPS and high-frequency machine UPS differences are mainly manifested in the isolation transformer. The frequency machine on the use of isolation transformers, to a large extent, to enhance the reliability of the UPS. So in terms of comprehensive performance, IF and HF machines have their own advantages and disadvantages.
? If like large CT, MRI nuclear **** vibration imaging equipment is required to put the reliability and stability requirements in the first place, the essence of the source of high-power frequency machine UPS should be the first choice; if it is a computer, printer and other CT and MRI nuclear **** vibration of the workstations or general office applications, you can consider using a lower-cost ordinary high-frequency machine UPS; if it is the ultrasound, biochemical instrument, hematocrit, surgical equipment, and so on, you can use a high-frequency machine UPS, and so on. Color ultrasound, biochemistry, hemocytometer, operating room equipment, etc. can use our improved version of the high-frequency machine, the essence of the source of science and technology medical supporting series of high-frequency machine in the original basis of the increase in the AC filter, can effectively eliminate ultrasonic artifacts, to avoid the two-dimensional echo image produced on the wave-shaped radiation interference.