Overview - Powervar 420VA Guía Del Utilizador

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POWERVAR - SECURITY ONE UNINTERRUPTIBLE POWER MANAGER
5.0 – OVERVIEW
General
The POWERVAR Security One Series of Uninterruptible Power Supplies are the most advanced, line-
interactive, true sinewave UPM products available for your application. Each model is designed to provide
total protection for your system from a complete range of power quality problems. Security One UPM
solutions will protect your installation from normal mode voltage impulses, electrical noise, sags and surges,
protracted brownouts, and complete blackouts. And because each Security One UPM contains an isolation
transformer, it completely eliminates common mode (neutral to ground) voltages that are a constant threat to
the reliable operation of microprocessor based systems. When AC power is present, Security One
constantly filters and conditions the power supply. When AC power fails, Security One uses its internal,
maintenance-free battery to supply reserve power to your computer system. Regardless of whether or not
commercial power is present, Security One is constantly on the job, ensuring a fully conditioned, safely
managed interface between your computer system and its electrical power supply. Figure 1 illustrates the
basic operation of the Security One UPM.
Available Versions
POWERVAR manufactures three versions of the Security One UPM – a standard version, a medical
version listed to UL60601-1 and cUL C22.2 No. 60601.1, and a version incorporating POWERVAR's
patented Ground Guard® technology for network installations (Ground Guard® not available in 2200 and
3000VA). In addition, all versions of Security One are manufactured in models compatible with International
electrical distribution systems. International versions are VDE listed (Medical listed to IEC60601-1 and
EN60601) and carry the CE Mark.
Sinewave Output
The output voltage of all Security One UPM models is a true, low distortion sinewave – the kind that the
utility company provides to the wall outlet and the kind that your equipment is des igned to work with. This
provides guaranteed compatibility even with the most sensitive electronic loads.
Voltage Manager™
The voltage of the AC power source can often fluctuate from its nominal rating. These deviations in line
voltage are tolerated quite well by most switch mode power supplies (the type used in your computer
system). However, some UPS products may misinterpret these transient changes in line voltage as a power
outage and erroneous battery operation may occur. This type of activity results in unnecessary strain on the
battery and may eventually shorten its life. POWERVAR's Security One UPM products feature Voltage
Manager – a circuit that constantly monitors the AC power source. If minor changes in AC voltage occur,
Voltage Manager adjusts the input voltage to the UPM circuitry so that erroneous inverter operations are
avoided. Ensuring that the UPM switches to its batteries only in the event of a true power outage, results in
longer battery life and a lower cost for both maintenance and ownership.
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