What's a UPS? Why UPS? Everything you need to know about UPS power is right here
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Author:pmo89cafb
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Published time: 2020-10-27
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(1) what is the UPSUPS-uninterruptible Power System (UPSUPS-uninterruptible Power System) an energy conversion device that uses battery chemical energy as a backup to provide Uninterrupted Power to consumer devices in the event of a grid failure, such as a Power outage.
(2) why to use the four functions of UPSUPS:
1 The function of no power cut, to solve the problem of power cut;
2 the function of AC voltage regulation, to solve the problem of severe fluctuation of network voltage;
3 the function of purification, to solve the problem of pollution of Power Grid and Power Source;
4 The function of Management, to solve the problem of AC power maintenance, the main functions of UPS: 1 to achieve the isolation between the power grid and electrical appliances, 2 to achieve the uninterrupted switching of two power supplies, 3 to provide high quality power supplies, 4 voltage and frequency conversion functions;
5 provide backup time after a power outage. (3) according to the principle of work, UPS is divided into: off-line (backup UPS, interactive UPS) on-line UPS according to the different power supply system, UPS is divided into: single-in-single-out UPS, three-in-single-out UPS, three-in-three-out UPS. According to the different output power, UPS IS DIVIDED INTO: Mini & Lt; 6kva mini 6-20kVA medium-sized 20-100kVA large & GT; 100kva according to the different battery position, UPS is divided into: Battery built-in UPS (Standard Type) battery external UPS (long-delay type) according to the operation mode of multiple machines, uPS IS DIVIDED INTO: Series hot backup UPS (for small and medium power machines) alternate series hot backup UPS (small and medium power UPS) direct parallel UPS (for medium and large power plants) according to the characteristics of the transformer, the UPS is divided into: high-frequency UPS (high-frequency machines) , power-frequency UPS (power-frequency machines) according to the output waveform is different, UPS is divided into: Square wave output UPS, step-wave (quasi-sine wave) UPS, sine wave output UPS. (4) UPS system structure and principle monitoring platform is also one of the most important components of UPS. The basic principle of UPS back-up operation principle when the power supply through the switch directly supply the load, the inverter does not work; in addition, the power supply through the charger to the battery. After power failure, start the INVERTER, the battery stored energy through the inverter and switch to supply the load. Power level about 0.25-2KVA operation principle of interactive UPS online interactive UPS and standby mode ratio, the mainSentence is too long, please supply a shorter sentence. Sentence is too long, please supply a shorter sentence. User Load; UPS output redundancy (70 ~ 80%) load peak factor (3:1) can not exceed inverter overload capacity load apparent power (Kva) can not exceed UPS rated power factor conversion factor three-phase load imbalance & LT; 30% . Harsh Electrical and physical environment: Power Supply Line voltage/frequency fluctuations, surge impact, peak subsidence, high frequency interference, environmental temperature and humidity instability, dust, corrosion and so on. STRUCTURE: input and output double isolation, steel chassis, high IP protection level. APPLICATION: Steel, chemical industry, electric power, automobile, paper, coal, oil, tunnel load type: heavy-duty machinery, production line equipment, DCS system, etc. . UPS working loss, ventilation, air conditioning configuration full load loss (KW) = kVACos (6 ~ 7.5%) air conditioning refrigeration capacity
differences are: INVERTER and charger integrated into one, the output through the tap jump transformer, to achieve subsection voltage stability. Power Level 0.7-20kVA on-line UPS operating principle no matter whether the grid voltage is normal or not, the AC voltage used by the load must go through the inverter circuit, that is, the inverter circuit is always in working state. Power Level 0.7-1500kVA about Delta Transform Operation Principle Delta Converter and compensation transformer to achieve voltage-stabilizing function, the main converter is a two-way converter. I can't stabilize the frequency. Power Class 10-480kVA comparison of four kinds of UPS (5) UPS power supply system a complete UPS power supply system is composed of front-end distribution (city power, generator, distribution cabinet) , UPS host, battery, back-end distribution, plus background monitoring or network monitoring software/hardware and other units. (6) UPS monitoring system composition UPS network monitoring system = intelligent UPS + network + monitoring software network monitoring software consists of the following three parts: SNMP card monitoring software security shutdown program UPS monitoring network
