Key Points About Uninterruptible Power Supply
December 11, 2009 by Scott Rodgers
Filed under Business
This modern era is basically based on computer and networking. Mostly, you will find people working on computer wherever you go. If so much of work is being done on computers, it is very essential to have a device that can give little back up to your system in case of sudden power failure.
A UPS (Uninterruptible Power Supply) can provide good back up to your PC, and save its life. A UPS is a battery backed equipment that enables your system to operate for short duration even after main power has stopped. It also enables you to systematically shutdown your PC.
In case of sudden power failure UPS helps in saving all the open applications, documents and reduces the chances of losing the unsaved data. Additionally, a UPS sets the constant electricity flow into your system saving it from undesirable power surges or spikes when main power returns.
A UPS is an intermediate between the computer and main power supply. A computer is connected to UPS which is further connected to main supply. A typical UPS contains a battery charger for lead acidic battery, DC to AC converter and a surge suppressor.
UPS keeps on monitoring the electricity flow and if it discovers a power cut off, it uses its DC charge and gives power to your system by transforming it into AC. This charge can give a backup for approximately 10-15 minutes.
Various kinds of UPS are available in the market like Offline Standby, Online and Line Interactive. Offline Standby is effective, cheap and acts like a surge suppressor when main power supply is there. Backup starts during fluctuation of electricity and it does not need line conditioning.
The Online UPS, conditions the flow of electricity and there is no gap between power outages and UPS start up. However, it costs much more than other two. The Line-Interactive UPS is similar in operation to a Standby UPS but with the addition of a multi-tap variable-voltage auto transformer. This type of UPS is able to tolerate continuous under voltage and over voltage surges without consuming the limited reserve battery power.
To find out the amount of load a UPS can bear VA (Voltage*Amp) is used. It can not bear a load beyond 60% of stated VA. UPS is useful during power failures, voltage drop, voltage spike, line noise, frequency deviation, harmonic distortion etc.
Scott Rodgers is an author with great experience in electricians work all over the country. His exemplary guidance has created business opportunities for a lot many Fort Belvoir Electricians and Paradise Valley Electricians .
