UPS equipped with voltage stabilized power supply to pay attention to the problem
(1). The regulated power supply must provide reliable protection against utility overvoltage input. In addition to parametric voltage regulator in the limit of working conditions, can be in the utility input voltage up to 300V when the long-term load to provide 220V regulated power supply, several other AC regulated power supply allows the upper limit of the utility are within 260V. And parameter type voltage regulator has the role of sinusoidal wave purification: when the input side of its input waveform serious distortion of 50Hz sine wave, or even square wave, it will send out the output side of the waveform distortion of the sinusoidal wave power. Therefore, it has two-way anti-interference capability, not only can suppress the interference from the utility grid on the load, but also can suppress the interference generated by the load on the grid pollution. However, it has a narrow frequency adaptation range and is only suitable for use in power supply systems with a stable grid frequency.
(2). As the electron tube type and magnetic saturation type AC voltage regulator in the instant of power on will appear the duration of up to 1 ~ 2 seconds or so of instantaneous high voltage, easy to induce the UPS power supply system failure, therefore, these two types of regulators should not be connected to the UPS uninterruptible power supply system.
(3). The voltage regulator should have the advantages of a wide range of voltage regulation and strong anti-interference capability.UPS is an uninterruptible power supply. Mainly to solve the problem of frequent power outages. For the utility voltage is often low, not often blackout areas, as long as the addition of a regulated power supply can be. Do not add a regulated power supply, only UPS, can not solve the problem of low voltage. The two in series, there will be no harm to the UPS.
