What are Self Excited DC Generators?Self-excited DC generatorA modern DC generator with an exciting coil is a self-excited generator, which starts with the initial current in the exciting coil. When the generator is turned off, a small magnetic force is generated in the rotor iron, which induces an electromotive force in the armature and therefore generates a current in the field windings. Initially, the weak magnetic field produces a small current in the coil, but in order to maintain self-exci