A: An Uninterruptible Power Supply is a device that sits between a power supply (e.g. a wall outlet) and a device (e.g. a computer) to prevent undesired features of the power source (outages, sags, surges, bad harmonics, etc.) from the supply from adversely affecting the performance of the device.

 

A: 1) UPS will supply power to the load when the utility is in failure (power cut or abnormal)

    2) UPS will supply stable and high quality power to the load, it improve the work efficiency also prolong the service life of the equipment.

 

A: There are off-line UPS, on-line UPS and line interactive UPS

 

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

 

Q5: What is on-line UPS
A: 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.

 

Q6: What is line interactive UPS?
A: 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.

 

Q7: What kinds of equipment should I use with the UPS? Is there any limit for it?
A: Normally, the UPS is used for PC, high technical equipment & medical appliances. Because of most UPS are designed for PC, so not all the equipment could be connected with it. Especially, conducting loads just like cooling fans, refrigerators that have the motors. These kinds of equipment will damage the UPS. Moreover, copy machine and laser printers that have huge starting current also could not be used with UPS. The huge starting current will impact the capacity of UPS.

 

Q8: How to choose the right UPS?
A: 1) Understand specifications of all UPS.
    2) Consider the requirements of power capability.
    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