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What is brushless excitation system?
3 phase synchronous generator or motor require DC current in the rotor. Conventional way of supplying DC requires use of commutators, which requires timely maintenance. To overcome this Brush less Excitation systems is used. Brushless Escitation system consists of one pilot excitor - DC generator with rotating PM as the field and the armature as the stator. The armature of the pilot excitor is connected to the stator of main excitor which is a 3-phase synchronous generator (please do not get confused, this is not our alternator but the exciter for the alternator). The rotor of the main exciter is connected to a diode bridge to get DC. This is connected to the rotor of our alternator.
Why use surge protecting resistor to generator rotor winding?
To limit the fault current used surge protective resistance in generator rotor winding to protect the rotor winding heavy damage.
How does ac electric motor convert in to an alternator?
a motor is a generator and a generator is a motor, if you are applying a voltage to turn the rotor its a motor and if you are turning the rotor and taking the voltage off the terminals its a generator or alternator.
What are the disadvantages of a brushless generator?
A brushless generator, in contrast, typically uses a solid-state rectifier assembly in place of the brushes and rings. This assembly contains no moving parts. This is important, as it makes the system more reliable and less prone to mechanical breakdown, jamming or seizing as a result of obstructions in the casing. Instead, a continuing charge is built up by transferring a portion of the generator's AC charge back into the exciter.
What are the parts of a direct current generator?
there are many parts of a dc generator armature, field coil, yoke, body, rotor and commutator.
What are the components of a generator?
The rotor, the stator and the voltage regulator are three main components of a generator. If you are talking about a motor generator set then of course the other main component would be the engine to drive the generator.
What are the main components of a generator?
The rotor, the stator and the voltage regulator are three main components of a generator. If you are talking about a motor generator set then of course the other main component would be the engine to drive the generator.
What is brushless excitation system?
3 phase synchronous generator or motor require DC current in the rotor. Conventional way of supplying DC requires use of commutators, which requires timely maintenance. To overcome this Brush less Excitation systems is used. Brushless Escitation system consists of one pilot excitor - DC generator with rotating PM as the field and the armature as the stator. The armature of the pilot excitor is connected to the stator of main excitor which is a 3-phase synchronous generator (please do not get confused, this is not our alternator but the exciter for the alternator). The rotor of the main exciter is connected to a diode bridge to get DC. This is connected to the rotor of our alternator.
What are the construction details of a brushless alternator?
A brushless alternator assembly will have the following major components. These include the case, stator, diodes, bearings, shaft, regulator and coils.
What has the author Alson R Kemp written?
Alson R. Kemp has written: 'Use of multiple loop model for brushless doubly fed machine rotor design' -- subject(s): Brushless Electric motors, Computer simulation, Design and construction, Electric motors, Brushless
How can convret dc generator to an alternertor?
By connecting a commutator to the rotor of the generator.
Why use surge protecting resistor to generator rotor winding?
To limit the fault current used surge protective resistance in generator rotor winding to protect the rotor winding heavy damage.
How does ac electric motor convert in to an alternator?
a motor is a generator and a generator is a motor, if you are applying a voltage to turn the rotor its a motor and if you are turning the rotor and taking the voltage off the terminals its a generator or alternator.
What is the excitation of the generator?
The rotor must have a magnetic field in order to generator voltage in stator winding. The exciter circuit generates this DC filed in the rotor.
What are the disadvantages of a brushless generator?
A brushless generator, in contrast, typically uses a solid-state rectifier assembly in place of the brushes and rings. This assembly contains no moving parts. This is important, as it makes the system more reliable and less prone to mechanical breakdown, jamming or seizing as a result of obstructions in the casing. Instead, a continuing charge is built up by transferring a portion of the generator's AC charge back into the exciter.
What is rotor?
rotor is the moving/rotating part of a motor/generator while stator is the stationary part.
What are the parts of an electric windmill?
blades,rotor generator,gearbox ,couplingmotor
