F.A.Q

Q1. What is UPS?
A: The full name of UPS is “Uninterruptible Power Supply”. It will immediately supply computers mains to
maintain the normal operation when power failure or abnormity.

Q2. Why should I need UPS?
A: Un-stable power quality will effect the operation of computers. UPS will not only immediately supply power to computers while power failure, but also protect against wide utility voltage. It will also offer users pure power and store your important data whether you are there or not. Therefore, UPS becomes more and more important equipment for computer & 3C users.

Q3. How many types of UPS?
A: There are three typical types of UPS: OFF-LINE, ON-LINE, and LINE INTERACTIVE.

Q4. How to choose the right UPS?
1. Understand specifications of all UPS.
2. Consider the requirements of power quality.
3. Understand the current capacity of UPS and consider the future expanding.
4. Choose UPS based on your requirements.

Q5. Do I need UPS when I live where seldom power failure happens?

A: In fact, power failure is one of power problem. The other power problems such as high voltage,
low voltage, and spike are the main problems. The purposes of UPS is to provide customers the
overall power protection such as voltage regulation, surge protection, spike, and sags protection.
It also provides extended back up time without any limitation.

Q6. How many kinds of Power problems?
A: Except the blackout, there are Sags, Spikes, Surges, Noise & Transients will make the PC or other high technical equipment damage or shorten the lifetime.

Q7. What are the problems usually happen to the power supply ?
Blackout, power slump, power surge, continuous under voltage, continuous over voltage, frequency fluctuation, interference of computers, switching transient, harmonic distortion, etc.

Q8. How to maintain a UPS ?
There are three simple methods:

  1. Never overload your UPS.
  2. Never connect any home electronic devices such as cooling fan to your UPS. This may cause malfunction of your UPS.
  3. Discharge the battery in a consistent interval. The best way to do it is once a month or once two months. The simplest discharge way is to turn on the UPS without connecting the mains.

Q9. What is the benefits of a UPS?
A UPS has internal batteries to guarantee that continuous power is provided to the equipment even if the power supply stops providing power.

Advantages:

  • Computer jobs don't stop in case of the power failure.
  • Users do not inconvenienced when computer is out of power.
  • Equipment does not incur the stress of another (hard) power cycle.
  • Data isn't lost because a machine shut down without doing a "sync" or equivalent to flush cached or real time data.

Q10. How long can equipment on a UPS keep running after the power goes off?
It depends on how big a UPS do you have and what kind of equipment it protects? For most typical computer workstations, one might have a UPS that was rated to keep the machine alive through a 15 minute power loss. If you need a machine to survive hours without power, you should probably look at a more robust power backup solution. Even if a UPS has a very small load, it must still operate it's DC (battery) to AC converter, which costs power.

Q11. The capabilities of different topologies to utility line problems:

The problems of utility lines Backup UPS Line Interactive UPS Online UPS
Power Surges No Solution Limited Solution Complete Solution
High voltage spikes No Solution Limited Solution Complete Solution
Waveform slump Limited Solution Limited Solution Complete Solution
Electronic interference Limited Solution Limited Solution Complete Solution
Frequency fluctuation No Solution No Solution Track and lock phase within certain range
Continuous high voltage or low voltage
Limited solution Limited Solution Complete Solution
High voltage transient No Solution Limited Solution Complete Solution
Power down Complete Solution Complete Solution Complete Solution
 

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