What are the misunderstandings that brush-free generators are easy to walk?
Views: 0 Author: Site Editor Publish Time: 2018-04-13 Origin: Site
After the diesel generator is running, when the generator price speed reaches the rated speed, the AC excitation machine stator excitation circuit is closed, and when the pressure regulator potentiometer is adjusted to the zui large value, the generator has no output voltage or output voltage. low.
1) The generator core remains or is too weak. The new unit is turned on or turned for long-distance transportation or the generator is placed too long. The generator core has disappeared or the loss of magnetine is weak, causing the residual magnetic voltage of the generator to disappear or less than the normal residual magnetic voltage value.
2) Excitation loop wiring error. When maintaining the generator, it is inverted to reverse the polarity of the excitation winding. After power-on, the magnetic field generated by the excitation winding set is canceled in contrast to the remaining magnetic direction.
3) The exciting circuit is not available. The electrical contact poor electrical contact or the electrical components of the electrical components are loose, the lead is broken, resulting in a circuit interrupt, and the generator excitation winding is no excitation current.
4) The circuit interruption of the direct flow side of the rectifier is rotated. Since the circuit is interrupted by the current side of the rotary rectifier, the alternating current excitation machine is rectified by the rotary rectifier, the excitation current supplied to the excitation winding cannot be sent to the excitation winding, resulting in an AC synchronous generator that cannot generate electricity.
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