The simple construction of UPS, the use of UPS

Installation Precautions 1The area where the UPS is placed should be well ventilated, away from dangerous goods such as water, flammable gases, corrosives, etc., and the installation environment should meet the requirements of product specifications. 2.

It should not be placed on the side, and the air inlet hole on the front panel, the air outlet of the rear cover plate, and the air outlet on the side of the box should be unobstructed. 3.If the machine is disassembled and used at low temperature, there may be water droplet condensation, and it must be installed and used only after the machine is completely dry inside and outside, otherwise there is a risk of electric shock.

4.Place the UPS near the mains input socket, in any emergency, immediately unplug the mains input plug, disconnect the battery input, and all power outlets should be connected to the protective ground wire.

Store electrical energy, release electrical energy, and stabilize voltage.

UPS means "uninterruptible power supply" in Chinese, which is the abbreviation of "uninterruptible power supply" in English, which can ensure that the computer system continues to work for a period of time after a power outage so that users can save the disk urgently, so that you will not affect your work or lose data due to power failure. It mainly plays two roles in computer systems and network applications: one is emergency use, to prevent sudden power failure and affect normal work, causing damage to the computer; The second is to eliminate "power pollution" such as power surges, instantaneous high voltage, instantaneous low voltage, wire noise and frequency excursion on the mains, improve power quality, and provide high-quality power supply for computer systems.

In terms of basic application principle, UPS is a power protection device containing energy storage device, with inverter as the main component, and stable voltage and frequency output. It is mainly composed of rectifier, battery, inverter and static switch.

1) Rectifier: A rectifier is a rectifier device, which is simply a device that converts alternating current (AC) to direct current (DC). It has two main functions:

First, the alternating current (AC) is converted into direct current (DC), which is filtered and supplied to the load or to the inverter. Second, the battery is charged at a voltage that is charged. Therefore, it also functions as a charger;

2) Battery: The battery is a device used by UPS to store electrical energy, which is composed of several batteries in series, and its capacity determines the time it maintains discharge (power supply). Its main features are:

When the mains power is normal, the electrical energy is converted into chemical energy and stored inside the battery. When the mains power fails, the chemical energy is converted into electrical energy and supplied to the inverter or load;

3) Inverter: In layman's terms, an inverter is a device that converts direct current (DC) into alternating current (AC). It consists of an inverter bridge, control logic, and filter circuits;

4) Static switch: Static switch, also known as static switch, is a non-contact switch, which is a kind of AC switch composed of two thyristors (SCR) in reverse parallel, and its closing and disconnection are controlled by a logic controller. There are two types: conversion type and parallel type.

The transfer switch is mainly used in the system of two power supply channels, and its function is to realize the automatic switching from one to the other; Parallel switches are mainly used to connect parallel inverters with mains power or multiple inverters.

In principle, UPS is a kind of power electronic equipment that integrates digital and analog circuits, automatic control inverters and maintenance-free energy storage devices;

Functionally speaking, UPS can effectively purify the mains when there is an abnormality in the mains; It can also provide power to computers and other equipment for a certain period of time when the mains power is suddenly interrupted, so that you can have enough time to deal with it;

In terms of use, with the advent of the information society, UPS is widely used in all aspects from information collection, transmission, processing, storage to application, and its importance is increasing with the increasing importance of information application.

1. First describe the customer's on-site situation and needs, draw the current power supply map, and list the relevant problems that need to be solved. 2. Provide the corresponding relevant configuration suitable for the customer's site situation according to the needs and on-site conditions, and give corresponding explanations for the reasons for the configuration. According to the load characteristics, power size, and the importance of the load, the host capacity is selected, whether the power frequency machine or the high-frequency machine is used, whether the single machine or the parallel machine is redundant, whether the input is a single power supply or a dual power supply, whether lightning protection is required, etc. According to the calculation formula based on the backup time and load size, you will choose the basis for the battery capacity and quantity.

3. Implementation of the project. 1. Construction plan: what preparations, corresponding materials, tools, and personnel are needed.

List the construction schedule and design the corresponding construction schematic diagram. 2. Construction objectives. According to the contract requirements and industry regulations, the ultimate goal of solving the customer's power supply problem is achieved.

3. Project implementation. Emergency measures for problems encountered in construction, how to ensure that the construction does not cause losses to the customer's site and affect the construction progress. 4. Acceptance and follow-up service.

You mean, it's to buy a machine. aspect, or design.

Since the UPS is the control gate of the mains to the load, its design itself is very complex, it is a relatively delicate thing, and it is more prone to failure. In addition, a considerable number of individual users do not pay attention to the use, which makes UPS even more problematic. Therefore, in order to reduce the probability of UPS failure, it must be used and maintained correctly, so as to maximize the use time of UPS.

1. Before starting, it is necessary to confirm that the polarity of the input mains wiring is correct, and the UPS system has very strict requirements for the positive and negative poles of the power supply.

2. Pay full attention to the total load capacity should not be greater than the rated power of UPS. If the total load capacity is too large, the battery in the UPS will be overloaded, and the battery will be damaged or even damaged in the UPS for a long time.

3. After the mains power is interrupted, after the UPS is powered by the battery and automatically shuts down, do not use the UPS battery for power supply, excessive discharge will only reduce the battery life of the UPS rapidly.

4. When the mains power is abnormal and the UPS is converted to battery power, the computer system in the load should be turned off immediately, and do not think that the battery has been used long enough, or even continue to play games or work during the power supply period.

5. Unless the UPS itself has been indicated, do not connect an external long-lasting battery, which will cause the UPS to fail due to increased power.

6. Please do not put magnetic objects such as magnets on the UPS, otherwise it will easily lead to the loss of data in the memory of the UPS machine, so that the machine can not complete its due function.

7. UPS is more suitable for capacitive loads, but not for inductive loads (such as air conditioners, hair dryers, electric rotation), half-wave loads and impact loads (such as printers), and UPS with square wave output cannot be charged with inductive loads.

8. UPS should not be operated in a full load or light load state all the time, and 50%-80% of the rated capacity is generally selected. When purchasing, please refer to the previous announcement to purchase.

9. Do not turn off and on the UPS power frequently. Generally, it is necessary to turn off the UPS power for 6 seconds before turning it on again, otherwise the UPS power may be in"Failed to start"That is, the UPS power supply is in a state where there is neither mains output nor inverter output.

The use of UPS uninterruptible power supply is as follows:

Send mains power to UPS so that it is in bypass work.

Turn on the loads one by one. First turn on the load with a larger inrush current, and then turn on the load with a smaller inrush current, and the UPS panel is turned on to make it in the inverter working state.

Properly connect the voltage polarity of the battery.

Do not connect the cable between the battery and the main unit first, and wait for the UPS mains input to generate a charging voltage before connecting.

Turn off the loads one by one, and then turn off the UPS panel. If you need UPS output, turn off the UPS completely.