Definitions - Toshiba G9400 Series Installation And Operation Manual

3.1 Definitions

UNINTERRUPTIBLE POWER SUPPLY SYSTEM (UPS) - All components within the UPS Cabinet, ancillary cabinets,
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 CABINET – The metal enclosure which is the main part of UPS and composed of the bypass module, the 3～5
power modules, and the Cable Entry Section.
LINK CABINET – The metal enclosure in which buses between separately shipped power modules are connected.
POWER MODULE - The metal enclosure which contains the Converter / Inverter, Charger, and internal control
systems required to provide specified AC power to a load.
CONVERTER / INVERTER - The UPS components which contain the equipment and controls necessary to convert
input AC power to output AC power required by the critical load.
CHARGER - The UPS components which contain the equipment and controls necessary to regulate DC power
required for battery charging and for supplying power to the Inverter.
BYPASS MODULE - The metal enclosure which contains the Bypass line, the static transfer switch, UPS operator
controls, and internal control systems.
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 operating in double conversion mode.
STATIC TRANSFER SWITCH - The device which connects the critical load to the bypass line when the Inverter
cannot or should not supply continuous power to the load.
AC INPUT POWER - Power provided by the electrical utility company, or auxiliary generator, which is connected to
the UPS Converter & Bypass for supplying the critical load.
ENERGY STORAGE SYSTEM - The rechargeable energy storage device (Lithium Ion/VRLA/Wet Cell batteries)
which supplies DC power to the inverter to maintain continuous AC power to the load during AC input power failure
conditions.
8 G9400 480V 1200-2000kVA Installation and Operation Manual 203078-001