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UPS eco mode titleUninterrupted Power supply (UPS) systems can be the perfect safety blanket for business when it comes to protecting their IT infrastructure but they also be used to save money. From protecting against surges and loss to managing the efficiency of a system, ECO Mode UPS could be the perfect solution for your business.  

Product specialist for Single Phase UPS, at Emerson, Miguel Rascon runs us through the benefits of ECO Mode in UP and the benefits for business.

 

What is ECO mode and how does it work?emerson up eco mode image 1

So let’s start by keeping it simple, UPS systems are electrical devices that provide a steady stream of power for devices, usually PCs and servers, when the input power source, typically the utility mains, fails.

ECO Mode is a special operation mode in several UPS’s. The main advantage is that it allows the UPS to achieve a higher efficiencies in energy conversion.

 

Regarding operation, in on-line UPS (a type of UPS’s which have a twofold conversion stages), they have a very stable and regulated output voltage, but due to this two power conversion steps, the efficiency in energy conversion input-output is around to 88%-92%. With the use of this ECO mode (assuming a reasonable input voltage) the energy then flows from the input to the output through a bypass line which allows to achieve a very high efficiency (96-98% in this range).

 

Backup and Loss Prevention

In case of problems at input like perturbances or brownouts (a dropout of electricity supply), the UPS automatically changes from this ECO mode (powering the load through the bypass line) to the double conversion stages. This will decrease the efficiency, but ensures the load is always with a stable and regulated voltage.

 

This adaptive UPS means your servers, PCs and IT infrastructure is both protected and efficient.

  

What are the benefits for businesses?UPS for business title

OK so now you know the specifications of ECO mode, but what are the actual benefits for a business?

First out of the hat, and most obvious is the ECO side. ECO mode UPS has far higher efficiency on energy and power consumption.

ECO mode also produces far less thermal dissipation (less heat due to this higher efficiency achieved), thus also saving on the cooling/thermal management system

ECO mode UPS can lead to savings on energy power consumption, when calculated during product life, helping to reduce the operation costs.

 

How about drawbacks? Well, the list isn’t too long but does have a few disadvantages, ECO Mode does require more complexity on UPS design and then a result in the ECO mode produces wider regulation on output voltage.

 

 

Line-interactive- vs on-line UPS; the differences and what do businesses need to know?

Line interactive UPS:

This technology uses a single transformer between input and output to provide voltage regulation, giving:

-High efficiency (only 1 power conversion stage)

-Cheaper costs

-“Worse” output voltage regulation (example +-10%) at output

-Small transfer time when changing from line mode to battery mode

 

On-line UPS technology:

– 2 power conversion stages, thus lower efficiency (unless ECO mode is implemented)

– Stable and regulated output voltage (regulation at output is around 2-3%)

– Higher outright costs (more complex electronics)

– Zero transfer time when changing from line mode to battery mode

 

To surmise, on-line can be considered as a top technology, but depending on the applications and type of perturbances at input, line interactive technology is also suited for many cases. It is just a matter of selecting the right UPS technology for each application.

 

 

For more information and a range of UPS products click here for Ebuyer.com 

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1 COMMENT

  1. Laptops rule as in effect they have their own UPS!

    I have however seen “iron” computer rooms where they had three-phase motor-generators. Between the motor and the generator there was a large steel flywheel which stored enough energy to power the computers for fifteen minutes. That gave enough time to get the diesel standby generators online. Preventive maintenance of a flywheel-UPS is just a case of fitting new bearings every year.

    At some places the entire computer room is powered by an UPS. The DC power for this comes from a Battery Hall which has hundreds of glass accumulators sitting on wooden shelves. Usually the legs of the shelves will be fitted with ceramic insulators as wood is no longer considered to be an insulator. A Battery Hall can store a huge amount of energy and this gives enough time to power-up the diesels. Often the outages will just be mains-dips or brief outages lasting just a few seconds. These are caused by switching and re-routing power lines when sections have to be isolated for maintenance.

    Decades ago one could use a Ferro-Resonant Power Unit to power a home PC. These were often mounted on a wooden plinth that was faced with Asbestos. Efficiency was poor but the “waste heat” was most welcome for about ten months of the year. Such transformers will only cope with brief mains dips but they are better than nothing.

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