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FAQ

What is UPS?

Why should I need UPS?

Why should I need UPS?

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. 

Why should I need UPS?

Why should I need UPS?

Why should I need UPS?

 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 

How many types of UPS?

Why should I need UPS?

What is called Offline UPS?

There are three typical types of UPS:

  1. Offline
  2. Line Interactive
  3. Online 

What is called Offline UPS?

What is called Line Interactive UPS?

What is called Offline UPS?

 Off-line UPS will supply power only when power failure. 

What is called Line Interactive UPS?

What is called Line Interactive UPS?

What is called Line Interactive UPS?

Under normal situation, Line Interactive UPS will supply power from bypass through transformer. At this moment, transformer becomes charger. When power failure, transformer will transfer battery power to AC output. 

What is called Online UPS?

What is called Line Interactive UPS?

What is called Line Interactive UPS?

Under normal situation, On-line UPS will supply power after rectification and will transfer to bypass only when UPS is out of order, overload, or overheat. Normally, the On-line UPS provides the pure Sinewave output which is same as the mains provide by power plants.

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How to choose the right UPS?

What are important items you should evaluate when buying an UPS?

What are important items you should evaluate when buying an UPS?

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 the reputed brands and manufacturers.
5. Choose UPS based on your requirements 

What are important items you should evaluate when buying an UPS?

What are important items you should evaluate when buying an UPS?

What are important items you should evaluate when buying an UPS?

UPS reliability and stability.
2. The excellent engineers and the ability of products creation.
3. High efficiency and low noise.
4. Suppliers’ reputation and financial situation.
5. International safety approvals such as TUV,UL,CSA, and so on.
6. Plant certifications such as ISO9001, ISO9002, and so on. 

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

What are important items you should evaluate when buying an UPS?

What could I use for the RJ11 connector on the rear panel of UPS?

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. 

What could I use for the RJ11 connector on the rear panel of UPS?

What could I use for the RJ11 connector on the rear panel of UPS?

What could I use for the RJ11 connector on the rear panel of UPS?

RJ11 connector is used to protect the phone line. Hence, you can connect your phone; fax machine, modem and ADSL with it for better protection 

How many kinds of Power problems?

What could I use for the RJ11 connector on the rear panel of UPS?

What are the problems usually happen to the power supply ?

Except the blackout, there are Sags, Spikes, Surges, Noise & Transients will make the PC or other high technical equipment damage or shorten the lifetime. 

What are the problems usually happen to the power supply ?

What could I use for the RJ11 connector on the rear panel of UPS?

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. 

The functions of UPS?

How long can equipment on a UPS keep running after blackouts?

What is the benefits of a UPS?

An UPS can perform:

  1. 
Power down protection
  2. 
Under-voltage and over-voltage protection

  3. Waveform distortion correction

  4. Frequency stabilization
  5. Voltage regulation
  6. Surge protection
  7. Power supply monitoring  

What is the benefits of a UPS?

How long can equipment on a UPS keep running after blackouts?

What is the benefits of a UPS?

UPS has internal batteries to guarantee that continuous power is provided to the equipment even if the power supply stops providing power. 
Advantages: 
1. Computer jobs don't stop in case of the power failure.
2. Users do not inconvenienced when computer is out of power. 
3. Equipment does not incur the stress of another (hard) power cycle. 
4. Data isn't lost because a machine shut down without doing a "sync" or equivalent to flush cached or real time data. 

How long can equipment on a UPS keep running after blackouts?

How long can equipment on a UPS keep running after blackouts?

How long can equipment on a UPS keep running after blackouts?

 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. 

How are the "sizes" of UPS's determined?

How are the "sizes" of UPS's determined?

How long can equipment on a UPS keep running after blackouts?

Typically, a UPS has a VA rating. The VA rating is the maximum number of Volts * Amps it can deliver. The VA rating is not the same as the power drain (in Watts) of the equipment. Computers are notoriously non-resistive. A typical PF (power factor: Watts/VA) for workstations may be as low as 0.6, which means that if you record a drain of 100 Watts, you need a UPS with a VA rating of 167. Some literature suggests that 0.7 may be a good conversion factor, but this will depend heavily on the machine. 

The main specs of UPS

How are the "sizes" of UPS's determined?

The main specs of UPS

The main specs for hardware are:
Operation model: offline, line interactive, online
Input voltage range
Input frequency range
Input power factor
Load power factor
Over load capacity
Transfer time
The stability of output voltage
The distortion of output voltage
Crest ratio
Ability of taking 100% unbalanced load 
Cold start function
Bypass function
Compatible with generators
Battery management level
UPS efficiency 

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