Issues to Note When Equipping UPS with Regulated Power Supplies
(1). A regulated power supply must provide reliable protection against overvoltage input from the mains. Except for the parameter regulator, which can provide a 220V regulated power supply to the load for a long time under extreme working conditions when the input voltage of the mains is as high as 300V, the upper limit of the mains power allowed by other AC regulated power supplies is within 260V. Moreover, the parametric voltage regulator has a sine wave purification effect: when a severely distorted 50Hz sine wave or even a square wave is input at its input, it will output a sine wave power supply with less waveform distortion at its output. Therefore, it has bidirectional anti-interference ability, which can not only suppress the impact of interference from the municipal power grid on the load, but also suppress the pollution of the power grid caused by the interference generated by the load. But its frequency adaptation range is narrow and only suitable for use in power supply systems with relatively stable grid frequencies.
(2). Due to the momentary high voltage lasting for about 1-2 seconds during the start-up of electronic tube type and magnetic saturation type AC voltage regulators, it is easy to induce faults in the UPS power system. Therefore, these two voltage regulators should not be connected to the power supply system of UPS uninterruptible power supply.
(3). A regulated power supply should have the advantages of a wide voltage regulation range and strong anti-interference ability. UPS is an uninterruptible power supply. Mainly to solve the problem of frequent power outages. For areas where the mains voltage is often low and power outages are not frequent, simply connect a regulated power supply. Adding only UPS without a regulated power supply cannot solve the problem of low voltage. Connecting the two in series will not pose any harm to UPS.
