Excuse me, but what is UPS

UPS (uninterruptible power system), that is, uninterruptible power supply, is a kind of uninterruptible power supply with energy storage device and constant voltage and constant frequency with inverter as the main component. It is mainly used to provide uninterrupted power to a single computer, computer network system or other power electronic equipment**. When the mains input is normal, UPS will stabilize the mains voltage to the load, and the UPS at this time is an AC mains regulator, and it also charges the battery in the machine; When the mains power is interrupted (accidental power outage), UPS immediately converts the power of the battery in the machine to the load through the method of inverter conversion**220V alternating current, so that the load can maintain normal operation and protect the load software and hardware from damage.

UPS is an uninterruptible power supply, which refers to a temporary power supply for a period of time in the event of a power failure, and can be used to save files.

Uninterruptible power supply.

In case of accidental power outages that cause data loss.

UPS stands for Uninterrupted Power System

The Chinese translation is: uninterruptible power supply.

It's a very useful thing!

UPS is a backup power supply, and generally the computer room will be equipped with a UPS. For example, if the business running in the server suddenly loses power in the process of writing data, then the system may fail, for example, the MySQL data will suddenly fail to power in the process of writing data, and the database may have an error, and then the business system will not be able to be opened.

The main feature of UPS is that it can support 0 second conversion, which theoretically means that the conversion between mains power and UPS power supply can be completed within 0 seconds, so as to ensure that the UPS power supply equipment will not be improperly shut down due to sudden power failure.

Small UPS is generally composed of a nose and a battery pack. Some need large UPS, which generally have a cage style.

UPS stands for uninterruptible power supply, which is an uninterruptible power supply containing energy storage devices. It is mainly used to provide uninterrupted power supply for some equipment with high requirements for power stability. Standby power.

UPS is a kind of uninterruptible power supply containing energy storage device (commonly battery) and constant voltage and constant frequency with inverter as the main component, which can solve the phenomenon of power failure, low voltage, high voltage, surge, noise and other phenomena of existing power, so that the computer system can run more safely and reliably.

Now it has been widely used in computer, transportation, banking, communications, medical, industrial control and other industries, and is rapidly entering the family. The UPS power supply system consists of five parts: main, bypass, battery and other power input circuits, rectifier (REC) for AC DC conversion, inverter (INV) for DC AC conversion, inverter and bypass output switching circuit, and energy storage battery.

The main technical indicators of UPS are as follows:

1) Capacity, refers to the output power of UPS, and its unit is usually expressed in VA.

2) The input voltage range refers to the maximum and minimum values of the input voltage of the power grid when the UPS is not powered by batteries.

3) Load stability, when the load changes in the specified range, the output voltage of the UPS changes the range.

4) Efficiency UPS, the ratio of output power to input power.

5) Harmonic distortion of output voltage, which refers to the proportion of high-frequency components in the output voltage of UPS.

6) Audible sound made during the working hours of audio noise UPS.

7) Switching time, in the process of converting the load from the grid power supply branch to the battery power supply branch or vice versa, due to the effect of the transfer switch, there will be no power on the load for a period of time, and this time is the switching time.

Refers to an uninterruptible power supply.

It is a device that provides backup AC power for electrical load equipment uninterrupted in the event of power grid abnormalities (such as power outage, undervoltage, interference, or surge current) to maintain the normal operation of electrical appliances.

Typically, uninterruptible power supplies are used to maintain the uninterrupted operation of critical commercial equipment or precision instruments such as computers (especially servers) or switches, preventing computer data loss, communication network disruption, or loss of control of instruments.

In North America, the large UPS used in data centers is mainly three-phase 480V, which is different from the mains three-phase 208V. The European data center uses the same three-phase 400V as the mains.

A power supply that can continue to work after a power failure.

(Uninterruptible Power Supply) is an uninterruptible power supply system.

In the event of a power outage, it can replace the mains power in an emergency, and the power is supplied to the equipment, just like the emergency lighting equipment. However, the design of the UPS system is more precise, which can make the conversion time between the mains and the battery or converter shorter, and make up for the shortcomings of the generator or other emergency power supply interruption time is too long. Because the function of UPS is higher than that of other emergency power supply equipment, it is generally used to protect important equipment, such as computer equipment, monitoring instruments, fire-fighting equipment, and medical equipment.

etc., to meet the strict requirements of computers and various precision instruments for power quality. At present, UPS has been recognized by various high-tech industries and computer circles as the necessary equipment that can truly solve the power supply problem.