UPS

The UPS or uninterruptible power supply is a form of battery backup used to protect against power failure or blackouts and in the case of some units line noise/harmonics, transitory over voltages, and under voltages or brownouts.  The UPS operates by charging a battery during standby operation and using the battery to power its output, through an inverter, when power is interrupted. When selecting a UPS you must determine the amount of power the device you wish to protect will draw, typically rated in volt amps or VA.  Another consideration is battery capacity, how long will the battery last.  The two main types of UPS are on-line, which continuously powers the output through the inverter, and standby, which switches from line to battery when power is lost, each have their advantages.  The online type is considered preferable since there is no switching delay or transient when power is lost. Additionally the online type continuously regenerates the AC waveform removing many types of power disturbances. The standby type is less expensive and more efficient.

Conclusion

The cost of power disturbances may differ, each causing their own symptoms from a minor malfunction to a system failure or even physical damage.  Protecting integral devices from these anomalies becomes critical.  Providing optimal operating conditions will safeguard data loss, equipment failure, and the longevity of your entire systems integrity.  Now that the integration of many intricate pieces of equipment is common to most systems in our homes and businesses today, providing the best possible operating conditions to protect your investment is wise.