MITSUBISHI ELECTRIC 2033D SERIES UPS systems - Manual (Page 10)

MITSUBISHI ELECTRIC 2033D SERIES UPS
MITSUBISHI
ELECTRIC 2033D SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
1-4
1.2 Definitions
UNINTERRUPTIBLE POWER SUPPLY SYSTEM (UPS) - All components within the UPS
Module Cabinet and associated batteries that function as a system to provide continuous,
conditioned AC power to a load. This is sometimes referred to as the "System".
UPS MODULE CABINET - The metal enclosure which contains the Converter, the Inverter,
the Chopper, the Static Transfer Switch, the Internal Bypass line, the operator controls,
and the internal control system required to provide specified AC power to a load.
UPS MODULE - The Converter and Inverter assemblies which, under the direction of the
internal control system and operator controls, provide specified AC power to a load.
CONVERTER/BOOSTER - The UPS components which contain the equipment and
controls necessary to convert input AC power to regulated DC power required for battery
charging and for supplying power to the Inverter.
INVERTER - The UPS components which contain the equipment and controls necessary
to convert DC power from the Converter, or the battery, to AC power required by the
critical load.
CHOPPER - The UPS components which contain the equipment and controls necessary
to charge the battery and supply power to the Inverter from battery.
STATIC TRANSFER SWITCH - The device which connects the critical load to the bypass
line when the UPS module cannot supply continuous power.
BYPASS LINE - The line which conducts electricity directly from the input power source to the
critical load during Maintenance or whenever the UPS is not completely operational.
INPUT POWER - Power provided by the electrical utility company, or auxiliary generator,
which is connected to the UPS for supplying the critical load.
BATTERY - The rechargeable battery strings which supply DC power to the inverter to
maintain continuous AC power to the load during AC input power failure conditions