Definitions - Mitsubishi Electric 1100A Series Owner Technical Manual

Page Number:
1100A SERIES UPS
1-9
OWNERS / TECHNICAL MANUAL

1.3 DEFINITIONS

UNINTERRUPTIBLE POWER SUPPLY SYSTEM (UPS) - All components within the UPS
Module Cabinet in combination with the batteries (external and/or internal) which 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 enclosure which contains Power Converter Module, Bypass
Module, Batteries, and operator controls required to provide specified AC power to a load.
POWER CONVERTER MODULE - The Converter / Charger and Inverter assemblies which,
under the direction of the Bypass Module and operator controls, provide specified AC power
to a load.
BYPASS MODULE – Assembly which contains Static Transfer Switch, the internal bypass
line, and the internal control system. With operator controls, gives directions required to the
Power Converter Module to provide specified AC power to a load.
CONVERTER / CHARGER - 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 / Charger, or the battery, to AC power required by the
critical load.
STATIC TRANSFER SWITCH - The device which connects the critical load to the bypass
line when the UPS module cannot supply conditioned 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 - Rechargeable battery strings which supply DC power to the inverter to maintain
continuous AC power to the load during AC input power failure conditions.
MITSUBISHI ELECTRIC 1100 SERIES UPS