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Starting Self-excited generators must be started without any external load attached.
In general, these flow disturbances are sources of sound and self-excited oscillations can occur(A15).
The self-excited magnetic field dynamo did away with the battery to power electromagnets.
In effect, this dead volume is very harmful for the air bearing's dynamic and causes self-excited vibrations.
Self-excited field motors can be series, shunt, or compound wound connected to the armature.
But the eye is not necessarily a thinking instrument, and it is simply hypnotized by Mamoulian's self-excited daring.
Unlike others, micro-nozzle air bearings do not face any self-excited vibrations even with a higher air pressure (more than 10 bar).
He formulated the concept of the self-excited dynamo about 1861, six years before Siemens and Wheatstone.
Synchronous motors are available in sub-fractional self-excited sizes to high-horsepower industrial sizes.
Pogo oscillation is a self-excited vibration in liquid propellant rocket engines caused by combustion instability.
Scanlan created the concept of flutter derivatives to aid in the representation of self-excited forces in theoretical models.
An induction generator usually draws its excitation power from an electrical grid; sometimes, however, they are self-excited by using phase-correcting capacitors.
Before Werner von Siemens, he discovered the dynamo-electric principle in 1854 and received the first patent for a self-excited dynamo.
Following the invention of the self-excited generator or Dynamo in the late 1860s and arc lamps their manufacture was taken up by Siemens Brothers.
Modern generators with field coils are self-excited, where some of the power output from the rotor is used to power the field coils.
Langton, L. L., Radio-frequency heating equipment, with particular reference to the theory and design of self-excited power oscillators.
One disadvantage specific to fluid-lubricated, hydrodynamic journal bearings in high-speed machinery is oil whirl-a self-excited vibration of the journal.
SEIG (self-excited induction generator)
If an induction motor is connected to a capacitor and the shaft turns above synchronous speed, it operates as a self-excited induction generator.
We will deal only with self-excited instabilities, but predictions of chaos also exist for the more complex case where the injected signal, or the pumping rate, are modulated.
Alternator - Synchronous, 4-poles, brush less self-excited, electronic voltage regulator (AVR)
Murthy holds four patents concerning the self-excited induction generator, Micro Hydel Applications and a novel-braking scheme.
A variation of this system is a type of alternator which uses direct current from the battery for excitation, after which the alternator is self-excited.
Schwartz is responsible for refuting the belief that cosmic rays trapped by self-excited turbolence within a supernova remnant cool irreversibly as the remnant expands.
Two non-linear behaviours are characteristic: 1) the "waterfall effect" wherein, subsequent to collapse, the flow through the tube becomes independent of the downstream pressure and 2) self-excited oscillations.
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