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UPS Uninterruptible Power Supply Industry Definition
- Apr 24, 2018 -

UPS (UninterruptiblePowerSystem/UninterruptiblePowerSupply), which is an uninterruptible power supply, is a system device that connects a battery (mainly maintenance-free lead-acid battery) to a host computer and converts DC power to commercial power through a module circuit such as a host inverter. It is mainly used to provide a stable, uninterrupted power supply to a single computer, computer network system or other power electronic equipment such as solenoid valves, pressure transmitters, etc. When the mains input is normal, the UPS will supply the utility voltage to the load after use. At this time, the UPS is an AC mains voltage regulator. At the same time, it will also charge the internal battery; when the utility power is interrupted (accidental power failure) At the time, the UPS will immediately supply the 220V AC to the load by switching the DC power of the battery to the load through the inverter zero switching method, so that the load can maintain normal operation and protect the load software and hardware from being damaged. UPS devices usually provide protection against over-voltage or under-voltage.

 UPS uninterruptible power supply industry classification

According to the principle of work, UPS is divided into backup, online and online interactive three categories.

Among them, we are most commonly used standby UPS, which has the most basic and most important functions of automatic voltage regulation, power failure protection and other UPS, although there are generally about 10ms conversion time, but because of the simple structure and cheap, reliable Due to its high level of performance, it is widely used in microcomputers, peripherals, and POS machines.

Backup UPS power is divided into standby sine wave output UPS power supply and backup square wave output UPS power supply.

Backup sine wave output UPS power supply: stand-alone output can be achieved 0.25KW ~ 2KW, when the city power changes between 170V ~ 264V, to provide users with the voltage power processing by the regulator; when the city power exceeds the range of 170V ~ 264V Only by the UPS to provide high-quality sine wave power supply.

Backup square wave output UPS power supply: Different from the backup sine wave output UPS power supply, it only provides users with 50Hz square wave power supply.

The on-line UPS structure is relatively complex, but its performance is perfect, and it can solve all power problems, such as the four-way PS series. Its distinctive feature is that it can continuously output pure sine wave AC power with zero interruption, and can solve all problems such as spikes, surges and frequency drifts. Power problems; due to the large investment required, they are often used in critical environments such as critical equipment and network centers.

Online interactive UPS, compared with standby, online interactive filter function, anti-city power is very strong, conversion time is less than 4ms, inverter output is analog sine wave, so can be equipped with servers, routers and other network equipment, or Used in harsh areas of the electrical environment.