Line sine wave output of the UPS has the following characteristics:

Line sine wave output of the UPS has the following characteristics:
(1) Due to on-line UPS, whether in the mains is normal, or power outages in the city by the machine during the inverter to the battery-powered, it loads are powered by the pure sine wave online ups inverter. Because of this, virtually eliminating the effect of any voltage fluctuations and interference from the mains to the load of work, truly non-intrusive regulator power to the load. This is obviously not any kind of interference AC power supply can be solved. When the voltage range of 180 ~ 250V city, its output voltage range up to 220V ± 3%, stable operating frequency range of the sine wave at 50Hz ± 1%.
(2) the waveform distortion coefficient line UPS output sine wave of the minimum, generally less than 3%.
(3) mains interruption can realize on-line UPS uninterruptible power supply to the load. As long as the machine battery can provide power to the UPS inverter, whether electricity is interrupted, on-line UPS is powered by the inverter to the load. Therefore, the power supply from the mains to the mains interrupt the process, on-line UPS internal action did not produce any conversion, the conversion time is zero power to the load.
(4) On-line UPS with backup UPS, compared with excellent output voltage transient characteristics. Generally l00% or 100% load load load load shedding, its output voltage range of about 1%, the change of duration is generally from 1 to 3 cycles.
(5) On-line UPS generally used above 20kHz PWM technology, the smaller the noise, about 50dB.
(6) on-line UPS control circuit, using the input transformer, the output transformer and a photocoupler device like "ferroelectric" driving part and "weak" control line portion isolated from the electrical point of view, and thus the reliability of the circuit is greatly improved. This UPS failure rate is generally low.