1. Backup UPS power supply
The backup UPS power supply has the advantages of simple structure and the cheapest price, and is used in some non-important loads, such as home computers. However, when the mains is powered off, the relay switches the inverter to the load, and the switching time is long, generally requiring a few milliseconds of interruption, and the delay time is short, so the slightly important PC computer equipment should not use a backup UPS power supply.
2. Online interactive UPS power supply
Online interactive UPS has the advantages of simple structure, convenient implementation, easy parallel connection, easy maintenance and repair, high efficiency, low operating cost, high reliability of the whole machine, and its performance meets certain load requirements, especially suitable for some computers in the network. The equipment adopts a distributed power supply system. The disadvantage of this kind of power supply is that the voltage regulation performance is not high, especially the dynamic response speed is low, and the anti-interference ability is not strong, and the circuit will produce harmonic interference and modulation interference. However, for the current technology, the online interactive UPS power supply is relatively less used, and it has gradually faded out of people's vision.
3. Online UPS power supply
The online type is the mainstream product of UPS power supply. It has the advantages of good performance, high voltage stability and frequency stability, strong function, hot backup connection and parallel redundant connection function, etc., no switching time!!! The power ranges from 1KVA to several Ten KVA range, mainly used in monitoring, computer room, medical and other equipment, excellent adaptability to the ambient temperature, is generally loved by the public.
The above is the structure and operation principle of UPS power supply.
The most important thing is to determine the actual power of the UPS power supply equipment, what the loads are, and the length of time that the UPS power supply needs to delay the equipment after the mains power failure, so as to quickly and efficiently configure the most suitable for your use here. UPS uninterruptible power supply.
