UPS Uninterruptible Power Supply Quotation | UPS Supplier | UPS Wholesale [Shenzhen Nuonai Power Supply] The UPS Uninterruptible Power Supply is now widely used in: mining, aerospace, industry, communication, defense, computer business terminals, network servers, network equipment, data storage equipment UPS Uninterruptible Power Supply Emergency Lighting Systems, railways, shipping, transportation, power plants, substation, nuclear power plants Fire Safety Alarm Systems, Wireless Communication Systems, Programmed Exchange Machines, Mobile Communication Solar Energy Storage Energy Conversion Equipment Control Equipment and Their Emergency Protection Systems, Personal Computers UPS is divided into three main categories according to the working principle: backup, online, and online interactive. Among them, the most commonly used is the backup UPS, which has the most basic and important functions of UPS such as automatic voltage regulation and power failure protection. Although it generally has a conversion time of about 10ms, the inverter output AC is a square wave instead of a sine wave, it is widely used in microcomputers and peripherals due to its simple structure, low price, and high reliability. Online UPS has a more complex structure but perfect performance, can solve all power problems, and its significant feature is that it can continuously output pure sine wave AC without interruption, solving all power problems such as spikes, surges, and frequency drift. Due to the need for significant investment, it is usually used in critical equipment and network centers where strict power requirements are placed. Online interactive UPS, compared to backup UPS, has filtering functions, strong resistance to power line interference, a conversion time less than 4ms, and inverter output as an analog sine wave, so it can be equipped with network equipment such as servers and routers, or used in areas with poor power environments.