What is UPS power supply?
UPS, that is, uninterruptible power supply, is the battery connected to the host, through the host inverter and other modular circuits will be converted to DC power utility system equipment.
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 and so on.
Extended information
A, role and principle
In the power system, DCS, monitoring system, automation instrumentation, scheduling communications systems, microcomputer systems and other core equipment on the quality and reliability of the power supply is very high, the need for a dedicated UPS power supply, the vast majority of these loads for the single-phase load.
Power UPS system generally consists of power UPS host, bypass regulator cabinet, output feeder cabinet and other three parts.
1, power UPS host cabinet: input and output isolation transformers, rectifiers, inverters, static bypass switch, bypass switch, backstop diodes;
2, bypass isolation regulator cabinet: bypass isolation transformer, bypass regulator, manual / bypass maintenance switches;
3, feeder cabinets: circuit distribution unit, monitoring instruments, control switches and signal indication, etc.
When the utility power is normal, the AC power is isolated, rectified and filtered to provide stable AC power through the inverter to supply power to the loads; if the AC power input is abnormal or power outage, the DC power will be supplied by the DC screen through the backstop diode, and then output to the loads after inverter. When the DC screen is under voltage or power failure, the static open and switch to AC bypass power supply.
References:
What is a UPS in a computer?
Voltage Regulated Power Supply
There are times when we are writing a paragraph, or programming a program, or drawing a picture with a paintbrush, and suddenly the screen goes black - a power outage. Alas, everything inside is gone, half a day's work for nothing. You don't even have a chance to save the disk. If the scientists in the scientific research also encountered this situation, the loss would be even greater.
Can we think of a way to keep the computer working, or to keep the machine powered on for a short time when the mains power stops, so that we have a chance to save the work we've already done on a disk for the next time we work on it? Option one, more difficult, to buy a generator, which is basically impossible to do for the average user.
UPS is an acronym for "uninterruptible power supply," and as the name implies, it is a machine that can maintain a period of power supply when the utility power supply stops, so that we have time to save the disk, and then turn off the machine. Power supply, divided into on-line and backup type and so on several kinds, it is in the machine when there is power to work, it will be the utility AC inverter, and stored in their own power supply, once the power supply stops, it will be able to provide power, so that the computer to maintain a period of time to work, keep the time may be 10 minutes, half an hour and so on.
What does ups refer to?
Ups refers to uninterruptible power supply, the full name is UninterruptedPowerSupply.
Uninterruptible power supply connects the battery to the host computer and converts the DC power to utility power through the host computer inverter and other modular circuits of the system equipment, the UPS equipment usually provides protection against overvoltage or undervoltage.
ups uninterruptible power supply application precautions
1, regularly on the UPS to remove the dust inside the machine, measure the voltage of the battery pack, replace the unqualified batteries, check the operation of the fan and testing and adjusting the system parameters of the UPS and so on.
2, UPS power place to avoid direct sunlight, and leave enough ventilation space, at the same time, prohibit the UPS output port with inductive loads.
3, strictly in accordance with the correct power-on, power-off sequence for the work, to avoid the load suddenly added or sudden load shedding, the UPS power supply voltage output fluctuations, so that the UPS power supply can not work properly.
Reference: Baidu Encyclopedia - Uninterruptible Power Supply
What is UPS? Does it do anything?
UPS in Chinese means "Uninterruptible Power Supply", is the English "UninterruptiblePowerSupply" acronym, it can guarantee that the computer system continues to work for a period of time after the power outage It can ensure that the computer system will continue to work for a certain period of time after a power failure so that the user can save the disk in an emergency, so that you will not affect the work or lose data due to power failure. It is in the computer system and network applications, mainly play two roles: one is the emergency use, to prevent sudden power outages and affect the normal work, causing damage to the computer; the second is to eliminate the utility power surges, instantaneous high voltage, instantaneous low voltage, power line noise and frequency shift and other "power supply pollution" to improve the quality of power supply for the computer system to provide high-quality power. Provide high-quality power supply for computer systems.
UPS is divided into online and offline type 2, determine which one you can debug in the control panel. Currently, the mainstream UPS manufacturers are APC, Santak, etc., all provide various levels of UPS to meet the needs of different user groups.
From the basic application principle, UPS is a kind of power protection equipment containing energy storage device, with inverter as the main component, stabilized voltage and frequency output. Mainly by the rectifier, battery, inverter and static switch and other components.
Rectifier: Rectifier is a rectifier, simply put, it is a device that converts AC to DC. It has two main functions: first, to turn AC into DC, filtered and supplied to the load, or to the inverter; second, to provide charging voltage to the battery. Therefore, it also plays the role of a charger;
Storage battery: the battery is used as a UPS storage device, which consists of a number of batteries connected in series, the capacity of the size of the decision to maintain the discharge time. Its main functions are:
1. When the utility power is normal, the electrical energy is converted into chemical energy stored inside the battery.
2. When the utility power fails, the chemical energy is converted into electrical energy to be supplied to the inverter or the load;
Inverter: In layman's terms, an inverter is a device that converts direct current into alternating current. It consists of inverter bridge, control logic and filter circuit;
Static switch: static switch, also known as static switch, it is a non-contact switch, is a kind of AC switch composed of two SCRs in reverse parallel, whose closing and breaking are controlled by the logic controller. It is divided into two types: conversion type and parallel type. Conversion type switch is mainly used for two-way power supply system, its role is to realize the automatic switching from one way to another; parallel machine type switch is mainly used for parallel inverter and utility or multiple inverters
What is ups?
UPS is an uninterruptible power supply, is to ensure that the computer system continues to work for a period of time after the power failure to enable users to emergency storage, so that users do not affect the work of the system equipment due to power failure.UPS will be connected to the battery and host computer, the host inverter and other modular circuits will be converted to DC power utility equipment, used to give the computer network system or other power electronics, etc. to provide a stable, uninterruptible power supply. The UPS is a device that converts DC power to utility power through the host inverter and other modular circuits.
UPS system equipment, when the utility input is normal, the UPS will be the utility voltage regulator supplied to the load, at this time the UPS is an AC voltage regulator, but also to the machine battery charging; when the accidental blackout, the UPS will immediately battery power, through the inverter switching conversion method to the load to continue to supply 220V alternating current, so that the load maintains the normal work and protect the load software and hardware from damage. The UPS will immediately supply 220V AC power to the load through the inverter switching method to keep the load working normally and protect the load software and hardware from damage.
UPS can meet China's power grid environment and network monitoring and network systems, medical systems and other power grid reliability requirements, to overcome the centralized power supply of medium and large-scale computer network systems caused by the increasingly severe problems of the power grid environment, and the use of new digital technology development. The third generation of industrial frequency pure online intelligent UPS, the implementation of online maintenance management can avoid the shortcomings of the traditional methods to achieve good benefits.
Expanded Information:
The time for which a UPS can provide uninterrupted power is limited. The time is limited by the amount of energy stored in the battery itself. When an outage occurs, then what needs to be done while the UPS battery is powered is to restore AC power, for example by enabling a backup AC circuit and allowing the oil to generate power. If not, then you need to urgently save the disk and wait for AC power to return to normal before proceeding.
UPS is required in important and major occasion places. Institutions like banks, stock exchanges, internet, data centers, etc. need UPS power. Once the power outage, UPS can instantly start the battery power supply to maintain the load in the normal power supply of critical information equipment, to ensure that the information system software, hardware, no accident or data loss. Like some of the backstage of the main venue, to maintain normal power supply also need to use UPS.
UPS in the Chinese market China has its own brand. Kewa has broken through the "no master-slave adaptive multi-machine parallel control" "high-power three-phase UPS" and other industry bottlenecks in technology, and continue to introduce new high-end UPS products of various power levels, breaking the monopoly of foreign brands of high-end UPS technology in China. The products are widely used in the Bird's Nest, the main venue of the Beijing Olympic Games, the main stadium of the Women's World Cup in Shanghai, and the Three Gorges Hub Project.
Baidu Encyclopedia - Uninterruptible Power Supply
What is ups
UPS is the English abbreviation for Uninterruptible Power Supply, which means uninterruptible power supply system or known as non-stop power supply system. That is to say, once the utility power drops out, the backup power supply continues to supply power to the original load almost without a breakpoint.