Now is the time after the electric rolling door equipment is put into use, it is always inconvenient because of power failure. Although it can be opened manually, it is time-consuming and laborious. In this case, the rolling door UPS came into being. Of course, the ups of rolling shutter door is different, the standby power supply and emergency power supply have their own advantages. Next, special engineering and technical personnel tell us the difference between the backup power supply and emergency power supply of rolling shutter door

1,备用电源与主电源相比，备用电源需要引导与主电源相对独立的电源。主电源消失时，备用电源必须自动或手动投入，确保电力的可靠性

1. Compared with the main power supply, the standby power supply needs to guide a relatively independent power supply. When the main power supply disappears, the standby power supply must be put into operation automatically or manually to ensure the reliability of power supply

2,应急电源是在主电源和备用电源都消失时，为保证人身和设备而设置的电源。一般要求该电源独立于外部电网，这样在外部电网掉电时应急电源仍能持续运行；

2. Emergency power supply is a power supply set to ensure personal and equipment safety when the main power supply and standby power supply disappear. It is generally required that the power supply is independent of the external power grid, so that the emergency power supply can continue to operate when the external power grid is powered down;

3，向每一台需要该电源的负荷去输送应急电源的供电系统即为应急供电系统，包括开关柜和电缆、保护。

3. The power supply system that transmits emergency power to each load that needs the power supply is the emergency power supply system, including switch cabinet, cable and protection.
            

4,应急电源的可靠性非常高，主、备用电源丢失时只需供电即可，通常可以停止运转。应急电源允许的主、备用电源丢失后几秒钟内运转，因此在应急负荷的情况下，一般可以选择快速发动柴油发电机组，负荷小的情况下，也可以选择直流逆变电源。如果要求任何时间都不能停电，那就是不停电(UPS)，正常交流供电，事件发生时由电子切换设备转换为直流逆变供电，电源切换时间在几个微妙的水平。

4. The reliability of emergency power supply is very high. When the main and standby power supply is lost, it only needs to supply power, and it can usually stop running. Emergency power supply allows the main and standby power supply to run within a few seconds after the loss, so in the case of emergency load, generally you can choose to quickly start the diesel generator set, and in the case of small load, you can also choose DC inverter power supply. If it is required that there should be no power cut at any time, it is no power cut (UPS), normal AC power supply, when the event occurs, the electronic switching equipment is converted to DC inverter power supply, and the power supply switching time is at several subtle levels.

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