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Coils are rotated past these magnets which causes the electrons in the coil to align in a particular way. This causes current to move in that direction. The power is actually generated as the coil wires pass through the lines of flux from the magnet.
If you would like to see these lines of flux you can! Put a piece of paper over a magnet and sprinkle some iron filings on the paper. Tap the paper a few times and the flux lines will start to appear. A wire passing through these lines generates a small current flow. The faster you can make this action repeat, the more flow. Many wires are coiled together to make this action occur so often that usable power is made.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoPMG mainly used for generating voltage for excitation system in case of brush less excitation system.In PMG residual flux is enough to get magnetizing itself.there is no need external excitation for voltage development in PMG
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How does the starting of synchronous motor using dc generator as a load work-?
Starting of the synchronous motor using the DC generator creates a magnetic field.
How does a generator exciter work?
Exciter controls the magnetic field in the generator system and controls the output voltage and/or current.
How does an electric generator work?
Converts mechanical energy into electricity. Movement of magnetic field across a conductor will cause electron flow. The windings of a generator are rotated within a magnetic field.
Can you use a dc generator as a dc motor?
Yes you can turn a motor into a generator, if it is a permanent magnet motor.
What are the factors causing a permanent magnet generator not to generate emf?
A magnetic field will not generate an EMF if there is no motion, so the primary factor causing a permanent magnet generator to not generate EMF is if it is not turning.
Can a permanent magnet solenoid be modified to work like a permanent magnet linear generator?
yes - need to run electricity through it to make it a linear magnetic generator.
How does the starting of synchronous motor using dc generator as a load work-?
Starting of the synchronous motor using the DC generator creates a magnetic field.
What condition will sinusoidal voltage be generated in a coil of wire that rotates in a magnetic field?
a generator or alternator,if the magnetic is permanent the current produced from the coil will be alternating current ac.
How does a generator exciter work?
Exciter controls the magnetic field in the generator system and controls the output voltage and/or current.
Described some uses for permanent magnets?
Permanent magnets can be used in a compass to find north, or they can be used to the magnetic field you need in a motor or generator. Spinning a wire at a right angle through a magnetic field creates electricity in the wire.
What are the factors that determine the size and direction of the emf generated by the permanent magnet generator.?
number of conductors speed magnitude of the magnetic flux
How does an electric generator work?
Converts mechanical energy into electricity. Movement of magnetic field across a conductor will cause electron flow. The windings of a generator are rotated within a magnetic field.
What are Factors that causes a permanent magnet generator not to generate emf?
Either the break in the circuit or loss magnetic strength of the magnet - can result into no generation
How do you build your own wind powered generator?
Pinwhel connected to a coil of wire that rotates within the magnetic field of a (or 2) permanent magnets.
Can you use a dc generator as a dc motor?
Yes you can turn a motor into a generator, if it is a permanent magnet motor.
Which device work by rotating a wire coil within a magnetic field to produce electric current?
generator
What planet has a permanent magnetic field?
Most importantly to us, the earth has a permanent magnetic field.
