Toshiba 1800 SERIES User Manual

1800 Series User Manual
11
PRODUCT DESCRIPTION
Theory of Operation
An uninterruptible power supply, or system, is a device that is installed between
commercial power and load equipment. The UPS provides steady AC power
to the load during commercial power uctuations and interruptions.
During normal operation the UPS uses commercial AC power. It also takes in
all of the high voltage spikes and transients caused by switching and faults,
and all of the common mode and normal mode noise which is associated with
commercial AC power. The UPS converts this input to at DC power. From
this DC power, the UPS generates its own extremely high quality AC output.
The result of this process is maximum power conditioning.
If the AC power supplied to the UPS drops below a specied voltage level, the
unit’s batteries automatically begin supplying the power instead of receiving it.
This insures that the load connected to the UPS continues to receive power
without interruption. When commercial AC input power becomes available
again, operation returns to normal. The unit’s batteries begin to recharge so
they will be ready for the next power interruption.
Application and Use
Toshiba’s 1800 Series of on-line Uninterruptible Power Systems (UPS) provides
continuous computer-grade AC power in a compact, high performance,
energy efcient unit. The UPS assures safe and reliable operation of critical
ofce equipment, minicomputers, and local area networks. All units feature
an audible alarm which sounds if the battery voltage drops below standard
during use. This is an additional aid to help in retaining the valuable ofce
data banks. All units allow for computer interfacing for remote control and
monitoring, and an external battery pack option for extended backup operation.
(See Specications)
Power Backup
During an electrical power failure the batteries of the UPS unit supply DC
power to the inverter that supports the load equipment automatically, without
interruption. For example, when used to support a computer, a UPS backup
assures additional time to complete your activity and save data after a power
failure occurs.

Toshiba 1800 SERIES Specifications

General

Brand	Toshiba
Model	1800 SERIES
Category	UPS
Language	English