Search results
Results from the WOW.Com Content Network
Diesel rotary uninterruptible power supply devices (DRUPS) combine the functionality of a battery-powered or flywheel-powered UPS and a diesel generator. When mains electricity supply is within specification, an electrical generator with a mass functions as motor to store kinetic energy in an electro-mechanical flywheel .
These generators are equipped with automatic voltage regulators that adjust the excitation field keeping the voltage at the generator's terminals within the target range. [ 7 ] The task of additional reactive power compensation (also known as voltage compensation ) is assigned to compensating devices : [ 7 ]
In addition to the engine and generator, engine–generators generally include a fuel supply, a constant engine speed regulator (governor) in diesel and a generator voltage regulator, cooling and exhaust systems, and lubrication system. Units larger than about 1 kW rating often have a battery and electric starter motor; very large units may ...
IR's IR3847 SupIRBuck ® High Current Point-of-Load Integrated Voltage Regulator Receives Two Awards from Electronic Products China EL SEGUNDO, Calif.--(BUSINESS WIRE)-- International Rectifier ...
IR's IR3823 3A SupIRBuck ® Integrated Voltage Regulator Delivers 97.5% Efficiency in an Ultra-Compact 3.5x3.5mm Package EL SEGUNDO, Calif.--(BUSINESS WIRE) ... IR® (NYS: IRF) , a world leader in ...
A governor, or speed limiter or controller, is a device used to measure and regulate the speed of a machine, such as an engine.. A classic example is the centrifugal governor, also known as the Watt or fly-ball governor on a reciprocating steam engine, which uses the effect of inertial force on rotating weights driven by the machine output shaft to regulate its speed by altering the input flow ...
When the mains power fails, an eddy-current regulation maintains the power on the load as long as the flywheel's energy is not exhausted. DUPS are sometimes combined or integrated with a diesel generator that is turned on after a brief delay, forming a diesel rotary uninterruptible power supply (DRUPS).
The generator is brought up to approximate synchronous speed by supplying more energy to its shaft - for example, opening the valves on a steam turbine, opening the gates on a hydraulic turbine, or increasing the fuel rack setting on a diesel engine. The field of the generator is energized and the voltage at the terminals of the generator is ...