An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically the utility main, fails.

Power disturbances and blackouts can be costly.  Preserving Information, the availability of equipment critical to the business, maintaining fully occupied staff, reduction of cost over-runs, performing reliably and getting results on time are all key elements in any successful operation.   A UPS will provide clean, stable power to critical application equipment throughout utility power disturbances and power failure.

There are three typical types of UPS: OFF-LINE, ON-LINE, and LINE INTERACTIVE.

An Online UPS takes incoming power, converts it to DC, conditions it, and converts it back to AC. This means the UPS is Online since there is no delay to switch to battery. Use an online UPS for your critical applications, high availability servers, etc. The output of these online UPS systems are TRUE sine wave, and is usually better than power from the electric company.

An Online UPS takes incoming power, converts it to DC, conditions it, and converts it back to AC. This means the UPS is Online since there is no delay to switch to battery. Use an online UPS for your critical applications, high availability servers, etc. The output of these online UPS systems are TRUE sine wave, and is usually better than power from the electric company.

1. Understand specifications of all UPS.
2. Consider the requirements of power quality.
3. Understand the current capacity of UPS and consider the future expansion.
4. Choose reputed brands and manufacturers.
5. Choose UPS based on your requirements.

1. UPS reliability and stability.
2. The excellent engineers and the ability of products creation.
3. High efficiency and low noise.
4. Suppliers' reputation and financial situation.
5. International safety approvals such as TUV,UL,CSA, and so on.
6. Plant certifications such as ISO9001, ISO9002, and so on.

In fact, power failure is one of power problem. The other power problems such as high voltage, low voltage, and spike are the main problems. The purposes of UPS is to provide customers the overall power protection such as voltage regulation, surge protection, spike, and sags protection. It also provides extended back up time without any limitation.

RJ11 connector is used to protect the phone line. Hence, you can connect your phone; fax machine, modem and ADSL with it for better protection.

Except the blackout, there are Sags, Spikes, Surges, Noise & Transients will make the PC or other high technical equipment damage or shorten the lifetime.