The voltage is unstable in summer. Let's know what

2022-07-22
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A netizen posted on the Internet that his computer was burnt out due to the sudden rise of the voltage in the community. Contacted with the news about the construction of substations around the community a few days ago, Xiaobian suddenly thought of ups

I saw a netizen post on the Internet saying that his computer was burnt out due to the sudden rise of the voltage in the community. In connection with the news about the construction of substations around the community a few days ago, the editor suddenly thought of ups. The ups here is not the express, but the UPS uninterruptible power supply. You'd better read on to the specific situation

what is UPS (uninterruptible power system/uninterruptible power supply), that is, uninterruptible power supply, is a system equipment that connects the battery (mostly lead-acid maintenance free battery) with the host and converts DC power into mains power through the host inverter and other module circuits. It is mainly used to provide stable and uninterrupted power supply for a single computer, computer network system or other power electronic equipment, such as solenoid valves, pressure transmitters, etc

role of ups

it can ensure that the computer system continues to work for a period of time after power failure, so that users can save disk urgently, so that you will not affect your work or lose data due to power failure. In computer system and network application, it mainly plays two roles: first, emergency use, to prevent sudden power failure from affecting normal work and causing damage to the computer

the second is to eliminate the surge, instantaneous high voltage, instantaneous low voltage, wire noise and frequency offset on the mains “ Power pollution ”, Improve the quality of power supply and provide high-quality power supply for computer system

usp uninterruptible power supply component

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

1) rectifier: rectifier is a rectifier device, which is simply a device that converts alternating current (AC) into direct current (DC). It has two main functions: first, it turns alternating current (AC) into direct current (DC) and supplies the load or inverter after filtering; Second, provide charging voltage to the battery. Therefore, it also acts as a charger

2) inverter: Generally speaking, inverter is a device that converts direct current (DC) into alternating current (AC). It consists of inverter bridge, control logic and filter circuit

3) storage battery: storage battery is a device used by UPS to store electric energy. It is composed of several batteries in series, and its capacity determines the time of maintaining discharge (power supply). Its main functions are as follows: 1. When the mains power is normal, it converts electrical energy into chemical energy and stores it in the battery. 2 in case of mains power failure, convert chemical energy into electrical energy and provide it to inverter or load

4) static switch: static switch, also known as static switch, is a contactless switch, which is an AC switch composed of two thyristors (SCR) in reverse parallel, and its closing and opening are controlled by logic controller. It is divided into conversion type and parallel type. The transfer switch is mainly used in the system of two-way power supply, and its function is to realize the automatic switching from one way to the other; Parallel type switch is mainly used for parallel inverter and mains power or multiple inverters

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