Self-excitation type DC generator There is a principle by the coil. The magnetic field is stimulated by means of DC voltage. from induction of the residual magnetic field inside the generator itself When the armature rotates, a slight induced emf is generated. and will generate electricity As a result, this little current flows through the magnetic field coil, creating a magnetic field. by this magnetic field will help reinforce the magnetic field which is residual at the magnetic pole Therefore, the magnetic field becomes more intense, resulting in induction followed by increased induced emf. more and more
The self-excitation DC generator can also be divided According to the nature of the magnetic coil connection can be 3 types, which will be called The name of each type of self-excitation DC generator is correlated with the way the magnetic field coil is connected to the R winding.
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