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How efficient is a UPS?

A UPS is most efficient when it is 100% loaded, this is not an ideal condition in reality as it doesn't allow any overhead for increases in load.  Depending on the type of UPS the full-load efficiency is normally between 85-95%.

 

How is UPS efficiency determined?

The efficiency is determined by two factors:-

  1. The amount of power lost during the conversion stage (if any) of the UPS
  2. The amount of power required to operated the UPS circuits and battery chargers

In a Standby UPS, the incoming power to flows straight through to the connected equipment, the only power required by the unit itself is to operate the electronics of the unit and keep the battery charged.  This makes them very efficient but provides less protection than Online UPS.

In an Online or Double Coversion UPS, the device converts the incoming AC power to DC, and then back to AC to provide a clean sinewave out.  Because there is energy lost in every conversion this 'double conversion' system has lower efficiency when compared to a stanby UPS, but this is the price you pay for better protection.

 

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Contact Us

Email: sales@apcrbc.com.au

 

Phone: 1300 799 161

Onsite Service

Need someone to replace the batteries or install new equipment, we can help with service providers in every capital city

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Short Battery Life?

We can perform a calibration on your UPS battery charger to extend the life of your UPS batteries

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Looking for other APC Products?

As an APC Select Partner we have access to the full range of APC products at very competitive prices.

 

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