Author ：Iflowpower – Portable Power Station Supplier
How to choose online UPS and rear pre-collaborative UPS power supply. At present, the UPS power supply on the market is important to two categories: online UPS power supply and rear-standing UPS power supply. Due to the differences between performance, price, the use of use, today we will talk about the difference between online UPS power supply and rear-standing UPS power supply and how to choose.
Online UPS online UPS means that the electric grid voltage is not normal, the AC voltage used by the load is inverted circuit, and the inverter has been in a working state. Therefore, when power is powered off, the UPS can immediately convert its stored electrical energy to AC power supply to AC power supply, thereby achieving switching target of output voltage zero interruption. When the online UPS is supplied normally in the grid, the voltage of the grid input is removed from the high-frequency interference in the power grid through the noise filter to obtain a pure alternating AC, enter the rectifier to rectify and filter, and convert the AC power to smooth DC, then divide For two channels, all the way to charge the charger to charge the battery, and the inverter is supplied, while the inverter converts DC electrically converted to 220V, 50Hz AC power supply.
When the backup UPS is normal, the electric equipment is supplied from the commercial power by simple and regulating filter output, and the battery is charged. When power outage, the inverter operates, converting the DC power supply of the battery into a stable alternating current output. Since the usual market is normal, the inverter does not work, but only when the electric power failure battery is discharged, this UPS power supply is called a rear-collaborative UPS.
The important rear-pre-collaborative UPS is applicable to the market air fluctuations, and the requirements for power supply quality requirements. The rear-standing UPS power switch time is generally less than 10 milliseconds, so it is not suitable for places that cannot be interrupted in critical power supply. However, actually switching time is short, and the general computer or electricity device itself should maintain 10 milliseconds when power is powered off, and the electrical equipment generally does not have problems due to this switching time.
The difference between the online UPS power supply and the rear-collaborative UPS is that the online UPS power output is by inverters, isolated and shaped, and the reasse formula UPS is in the main pen direct output, the main electricity Inverter output when power off, the output waveform is generally square wave. Online UPS is different from a rear-back-back-back-to-supply time, generally for a few hours, more than a dozen hours, his important function is to let the power outages recovered with usually no power outages. Due to its specialty, the price is also divided.
Online UPS power supply is important for computer, transportation, banking, securities, medical and other important industries. Backup UPS generally only continues to power for a few minutes to dozens of minutes, it is important to have time to back up data, and end the hand as soon as possible, and the price is also low. For computer use, such as personal home users, can be equipped with small power backup UPS.
Compared to the rear-standing UPS power supply, the online UPS power supply is better than the rear-standing UPS power supply because it can regulate, steady frequency, inhibition of surge, spike, electroless noise, compensation voltage, and Long-term low pressure, etc., and when the power supply is converted to the battery, its conversion time is zero. How to choose the backup UPS and rear pre-collected UPS power supply, the price is low, the price has a great advantage, but it has a switching time and certain clutter when the power is converted, and is basically used in small power, and the power supply reaction Not very sensitive, therefore is more suitable for the office and family.
Online UPS can do "0 switching time" in the case of itself, and the voltage output is smoothly kept, so it is more suitable for use in the machine room and data center, and the online UPS is also supported by self-test, information Display and software remote monitoring, this high-power UPS is all online, and it is also customized based on the use of cabinets, racks and other styles. Select online or rear-standing UPS power supplies, should be set depending on the requirements of the microcomputer equipment. If the economic conditions are good, online UPS power is selected; if the economic conditions are poor, it does not affect the normal operation of the microcomputer, and the rear-standing UPS power supply is also available.
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