Difference between a voltage stabilizer and a UPS

tech001

what is the difference between a voltage stabiliser and a UPS? are the 2 the same or do i need a seperate voltage stabiliser for the purpose of voltage stabiliztion?

cameo

As the name implies,a stabilizer stabilises the power supply.
It always delivers a constant output voltage even whenthe input of it varies over the time.But if there is no input voltage the stabiliser will not provide any output.Used mostly at places where suddedn power failures doesnt effect much.

But the ups(uninterrupted power supply) will be able to supply the voltage even when the input power is cut off. The back up time (o/p when there is no i/p) varies according to different applications and make.Hence can be used for the purposes,where sudden power failures matters.say in th case of PC's.

if you have an ups,u might not need a separate stabiliser.

crazyboy

Quote:

Originally Posted by tech001

what is the difference between a voltage stabiliser and a UPS? are the 2 the same or do i need a seperate voltage stabiliser for the purpose of voltage stabiliztion?

A voltage stabilizer is an electronic device able to deliver relatively constant output voltage when input voltage and load current changes over time.

The output voltage is usually regulated using a transistor. In a parallel stabilizer the transistor is connected parallel to the stabilizer load, consuming the excess of power. This type of stabilizer is seldom used. In the more popular sequential stabilizer the transistor is connected sequentially with the stabilizer load, restricting the output current.
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An uninterruptible power supply (UPS), also known as an uninterruptible power source or a battery backup is a device which maintains a continuous supply of electric power to connected equipment by supplying power from a separate source when utility power is not available.

I hope this info will help...

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Crazy

ash

Not all UPS devices have a voltage regulator function. There exists UPSs that are inexpensive but do not protect the computer from voltage spikes or stuff like that. But the more expensive ones do have it. Make sure you check before you purchase one

Voltage regulator devices (sometimes called AVRs) are usually cheap anyway. Its a great investment for protection!

Yousuf Rafi

Very nicely explained

AZFL1995

Hi, guys!
I need your help. My monitors are flickering and waving. I think this is from unstable voltage. Stabilizers are very expensive. Regular UPSes I have do not help. Will regulators or more expensive UPS help me to solve the problem?

Thank you.
AZFL 1995

reachrkata

Hi AZFL,

In my opinion it is very rare that monitor flickers are normally caused by voltage variations because the variations would need to be very large for this. Usually all AC devices are rated for a good range (typically 180-240V). So there are some possibilities I see -

1) There is some problem in the monitor not related to the supply - get it checked.

2) If indeed it is a voltage problem you suspect - it could be a problem because of varying mains supply (which you can easily find because any other bulb in your home would also flicker)
Otherwise it could specifically be a problem of your UPS output which you can also check with an AC mutimeter or another bulb.

The easiest way i would say is to take your monitor to your friends house and try connecting to his PC to check if its a specific problem in your house.

Hope this helps !!!

Karthik