regardless of normal input-voltage changes or
UNINTERRUPTIBLE POWER SUPPLY (UPS)
SYSTEM.-- Critical ship control systems have a
changes in the load.
UPS as an emergency power source. The UPS is
used to maintain operations during any interruption
WASTE HEAT BOILER (WHB).-- Each WHB is
of the normal power source.
associated with a GTGS and uses the hot exhaust
VOLT.-- A unit of electrical potential.
gases to convert feedwater to steam for various
ship's services on CG-,DD- or DDG-51 class ships.
V O L T A G E . -- An electric potential difference,
expressed in volts.
WATT.-- A unit of electric power equal to the rate of
VOLTAGE REGULATOR.-- A circuit that holds an
work represented by a current of 1 ampere under a
output voltage at a predetermined value or causes it
pressure of 1 volt.
to vary according to a predetermined plan,