What is UPS?
UPS full name Uninterruptible Power Supply, uninterruptible power supply, is designed for precision equipment, backup power system. Readers familiar with the computer room, medical and other industries, this backup system is certainly not unfamiliar, and for ordinary people, it is certainly still confused.
UPS is composed of energy storage system, inverter system and rectifier system, so UPS mainly has two functions:
When the mains is pulled, it automatically switches to the internal energy storage power supply in an instant to temporarily power the equipment.
When the electricity consumption peaks or encounters lightning strikes, the mains power is unstable, the mains rectifier voltage is stabilized to eliminate the power surge.
Especially during the epidemic period of working from home, leaving the commercial office area with a stable electricity environment, I don't know if you have encountered the situation of switching fluorescent lights, the display is flashing, although the electrical appliances are not so easy to break, but the work progress can not be lost, if your electricity environment is not stable, you may wish to come to see if you need to purchase a UPS.
Is there any difference between a UPS and an outdoor power supply?
UPS from the function is like an outdoor power supply while charging, of course, while charging while using the battery life has an impact, so the implementation is the moment of power failure, switch to the internal energy storage system.
Most of the civilian UPS is to stabilize the voltage and blackout, wipe the unsaved work butt clean, the capacity is generally small, and use cheap and simple lead-acid batteries.
To put it bluntly, the use scenarios of the two are different, one is to deal with the sudden situation of power outages and voltage instability, and the other is energy reserves.
What types of UPS are there?
In addition to voltage regulation and temporary power supply, some UPS support remote control, automatic shutdown and other functions, which are built for NAS and enterprise users, and the price is also rising.
It is conceivable that UPS in the bank, hospital, transportation and other industries, or quite popular, these systems can be imagined as a result of the fall, of course, the UPS system they use and our daily contact is not the same, the following is still to introduce to you the type of UPS that ordinary people can buy, backup and online.
Backup UPS
The first is the entry-level type, the backup type as its name, the backup-based, daily use will not always run, but in the event of a power outage involved in power supply, the advantage is that the volume and noise are relatively small, the overall power consumption is lower, the price is cheaper.
However, the disadvantage is that the inverter system will not run all the time, the power outage switching will have a delay of several milliseconds, and the waveform of the inverter output is an analog sine wave, which is that the electrical appliance uses the power supply of this waveform for a long time, which will aggravate the running heat and age faster, but considering the power failure will be converted to internal battery power, the impact can be ignored.
Online UPS
The next introduction is the second online type, but also very well understood, regardless of the power outage, UPS will always be involved in power supply, the inverter system will always work, for the mains rectifier voltage stabilization, output pure sine wave, more friendly to electrical appliances, in the power outage instantaneous switch back to the reserve power supply, there will be no delay.
The advantages are obvious, the backup UPS rectification is an optional function, but the online UPS is standard, and there will be no delay in power outage switching plus pure sine wave, which is more friendly to precision appliances. The first disadvantage is that the inverter system that has been running will increase the power consumption, and in order to dissipate heat, the noise of the fan operation will always be present.
The price will also be higher than the backup UPS, and the online UPS price is generally above 1,000 yuan, which is suitable for Pro users.
Additional features
The additional features of UPS are also mentioned here slightly.
Start control, remote control
Some UPS can connect to computers and NAS through serial ports, and automatically save and shut down when power is down, so that data loss can be avoided to the greatest extent.
USB port
In essence, UPS is also a charging treasure, so it comes with a USB interface, and it is also very convenient to charge the mobile phone when the power is outage.
NAS compatible
This operation is more professional, if you are to save the life of the NAS, then the UPS that supports NAS control can be considered, and the NAS is automatically closed after the power is saved to avoid the loss of cache files.
What are the specific products
The above has a relatively comprehensive understanding of the introduction, specific types and additional functions of UPS products, so the following introduces several products to visualize the UPS.
UPS from Huawei, which is a Huawei enterprise-level UPS, since it involves enterprises, it is naturally an online UPS, the official declaration of power failure protection, 0 seconds seamless switching. At the same time, it also supports remote control and a variety of operation modes. In terms of power, the official offers three specifications to choose from, matching different user groups.
This is the UPS power supply from Green Giant Energy, which is an online UPS power supply, and there are currently two types of backup and online type to choose from. Green Giant ENERGY UPS power supply is wrapped in a metal shell, the built-in battery can be with a desktop computer for 30-40 minutes, and in addition to the computer can also provide power support for routers, monitoring and other equipment.
Due to the reasons of time and length, here are two brands of UPS power supplies, the main application scenario of UPS standby power supply is to make the equipment continue to work for a period of time in the event of a sudden power failure, so that users have enough time to complete the important work at hand or save important data in time.
Which UPS is right for you?
Rated power is the top priority, generally speaking, if the load is about 1000W, multiply by 1.5, you can get the right purchased power, 1500W, after all, the equipment operating power is not constant, it is important to reserve a part of the safety space.
In general, the desktop does not run large games, plus the screen router is about 400W. A 600W UPS is sufficient. If it is a NAS, it depends on the situation, refrigerator washing machine? Then you may need to buy this rackmount UPS power supply...
UPS basically use lead batteries, so the energy density is not very high, the volume is generally large, the battery capacity according to the use of the use, the capacity of small maintenance will be cheaper, the battery is a consumable, we also know that this battery is widely used in all kinds of electric mosquitoes, small fans, leakage occurs from time to time, regular replacement to ensure safety.
Charging head net summary
Then after reading it, everyone should have a score in mind and buy it on demand. Although the outdoor power supply can not replace the UPS, but the UPS can be plugged into the outdoor power supply after the power is cut off, so that the equipment can continue to work continuously, which is necessary for some life-saving medical equipment.
Now many software support auto-save, you can adjust the interval between automatic saves to shorten, but also to avoid data loss caused by unexpected power failures. And now some NAS, mobile hard disk built-in reserve power, after the power outage can still work for a short time, if your working environment power supply is not very reliable, may wish to search for this kind of office equipment with anti-power failure function.