UPS (Uninterruptible Power System/Uninterruptible Power Supply) is a system equipment that connects storage batteries (mostly lead-acid maintenance-free batteries) to the mainframe and converts DC power to urban power through module circuits such as host inverters. Mainly used to provide a stable and uninterrupted power supply for a single computer, computer network system or other power electronic devices such as solenoid valves, pressure transmitters, etc. When the city power input is normal, UPS will supply the city power to the load after stabilizing the voltage. At this time, UPS is an AC voltage regulator, and it also charges the batteries in the machine. When the city power interruption (accident power outage), UPS will immediately supply the DC power of the battery to the load through the method of converting the inverters to continue to supply 220V AC. Current current keeps the load working normally and protects the software and hardware of the load from being damaged. UPS devices usually provide protection against high or low voltage.
UPS is aimed at the reliability requirements of power supply in China's power grid environment, network monitoring and network systems, medical systems, etc. It overcomes the increasingly harsh environment of power supply network caused by centralized power supply of medium and large computer network systems, and develops the third generation of power frequency pure on-line intelligent UPS with brand-new digital technology. DC power supply is a device to maintain a steady current in the circuit. Such as dry batteries, storage batteries, DC generators, etc.
UPS and DC power supply are important power supply equipment for enterprises. Traditional maintenance and management includes: 1) daily inspection of appearance, regular replacement of vulnerable parts such as batteries, filter capacitors, fans, battery activation during overhaul; 2) modification or use of replacement equipment, using advanced tools to test battery performance. This kind of management mode is characterized by high investment cost, heavy workload of maintenance personnel, difficulty in grasping real-time operation status and key data of equipment, and low ability of preventing equipment accidents. The implementation of online maintenance management can avoid the shortcomings of traditional methods and obtain good benefits.
UPS, which means "uninterruptible power supply" in Chinese, is the abbreviation of "Uninterruptible Power System/Uninterruptible Power Supply" in English. It can ensure that the computer system continues to work for a period of time after the power outage, so that users can save their disks urgently, so that users do not suffer from power outages that affect their work or lose data. [1]