Loads (such as computers) on the UPS conventional electrical performance indicators are what the range of its use.
Computers, like other general office equipment, is a rectified capacitive load, such load power factor is generally between 0.6 and 0.7, and the corresponding peak factor is only 2.5 to 2.8 times. And other general motor load power factor is only between 0.3 to 0.8. Therefore, the general UPS as long as the design has a power factor of 0.7 or 0.8, while the peak factor of 3 or more can meet the needs of the general load. High-order computer UPS another demand for a low zero-ground voltage, with super lightning protection measures, short-circuit protection and electrical isolation requirements.
UPS adaptability to the grid indicators should include: ① input power factor; ② input voltage range; ③ input harmonic factor; ④ conductive electromagnetic field interference size and other indicators.
