Tag Archives: UPS power supply

FS UPS–Save Your Power

Imagine that you are working overnight for a project planning on your computer, and all of a sudden, you see a blank screen due to power cut. And what’s worse, all of your documents, important data and information are lost, and all of your efforts are in vain. It does sound like a devastating tragedy, right? However, with FS UPS power supply, you won’t worry about the issue of lost information. You can still move on with your work even if there is a power blackout. Why it’s so magic? Let’s check it out.

Power System On-Line Single-Phase 1kVA 800W Double-Conversion UPS

Three Operational Modes of UPS System

An uninterruptible power supply, also known as uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source or mains power fails. A modern UPS system has three general categories: on-line, line-interactive and standby/offline.

A standby/offline UPS charges its battery and then waits for the mains power to drop off. When that happens, the Standby UPS mechanically switches to the battery backup. This switch over takes about 20-100 milliseconds, which is generally well within the tolerance threshold of most electronics.

A line-interactive UPS has a similar design to a standby UPS, but includes a special transformer. This special transformer makes line-interactive UPS better at handling brownouts and power sags without consuming the limited reserve battery power.

An online UPS completely isolates the devices attached to it from the wall power. Instead of jumping into action at the first sign of power cut or voltage regulation issues like the standby and line-interactive UPS, the online UPS continuously filters the wall power through the battery system.

When A UPS is Needed

UPS power supply can not only solve the problem of power outages, but also the following power quality problems.

1.Power surge—The effective value of the output voltage is 110% higher than the rated value and such condition lasts for one or more cycles.

2.High voltage spike—A voltage with a peak value of 6000V and duration from 1/10000 second to 1/2 cycles (10ms).

3.Switching transient—An impulse voltage whose peak voltage reaches up to 20000V, but duration sustains within millionth of a second to one in ten thousand second.

4. Power sags—It refers to a low voltage state whose mains voltage is between 80% and 85% of the rated value, and lasts for one to several cycles.

5. Electrical line noise—It refers to Radio Frequency Interference (RFI), Electromagnetic Interference (EFI) and other kinds of high frequency interference.

6. Frequency variation—The change of mains voltage frequency exceeds more than 3Hz.

7. Brownout—The effective value of the mains voltage is continuously below the rated value for a long time.

8. Power fail—The interruption of the power supply and lasts for at least two cycles to several hours.

What Kind of UPS Can FS Offer

FS mainly deals with online UPS, including one-phrase and three-phrase type. FS online UPS always provides power from the battery, so the load always gets clean power regardless of any power problems. Therefore, FS online UPS is recommended for sensitive and critical electronic devices. The online UPSs offered by FS act as advanced power managers, ensuring the availability of an uninterrupted power supply to protect hardware (such as computers, data centers, telecommunication equipment or other electrical equipment) and mission critical applications. As is shown in the picture below, FS online UPS can be divided into eight parts and each of them has its unique function.

FS online UPS


High-quality UPS plays an important role in safeguarding against many potential energy issues. If you are investigating the best system for your own requirements, speak to one of our technical specialists who will be able to provide free advice on the most appropriate solution. Feel free to contact us via tech@fs.com.