Load characteristics of diesel generator set, this practice is the load characteristics of synchronous generator because it is directly at the load.Has been expounded in synchronous generator work sense: rotor winding dc current going into the tamper with the rectifier supply, in the building in the air gap between the stator and a magnetic field, as the rotor magnetic field or the main magnetic field.Then connect the armature winding of the stator or call a load, also because of the load current flows through the building have a magnetic field in air gap, called a stator and armature magnetic field.This two magnetic field in air gap naturally together form a composite magnetic field.The size of the synchronous generator output voltage and current is by its resolution.
Caused the main reason for the synthesis of magnetic field change is the armature magnetic field due to the different nature of load change.This as the armature reaction: when the armature winding of generator;Reason is a who on inductance coil, only a pure resistive load, winding voltage and current in phase, the armature magnetic field and the rotor magnetic field superposition, what to synthesize magnetic field without replacement.Only bring generator load operation, the stator flux to be in a saturated form to absorb some of the armature magnetic field, and make the synthesis of magnetic field is slightly reduced.The more the greater the load current is reduced.
If the armature winding is only pure inductive load, the armature current potential to lag phase Angle of 90 degrees.Created by the current of the armature magnetic field on the rotor magnetic field cancellation in formation, so that the synthetic field weakening and distortion.The output of the generator voltage and reduced.
Assuming that only the pure capacitive load to the armature winding, then due to the nature of the capacitance, makes the armature winding current phase Angle of 90 degrees in advance than its potential.The current form of the armature magnetic field or strengthen the rotor magnetic field, which makes synthetic magnetic field is strengthened, the generator output voltage for high.
Do more than appreciation: three straight not qualitative load makes synchronous generator create born different armature reaction, then make its output voltage make replacement.Navigate these rules, or configure a better load for the diesel generator set, the unit to play all power, supply the superior power.
If the armature winding is only pure inductive load, the armature current potential to lag phase Angle of 90 degrees.Created by the current of the armature magnetic field on the rotor magnetic field cancellation in formation, so that the synthetic field weakening and distortion.The output of the generator voltage and reduced.
Assuming that only the pure capacitive load to the armature winding, then due to the nature of the capacitance, makes the armature winding current phase Angle of 90 degrees in advance than its potential.The current form of the armature magnetic field or strengthen the rotor magnetic field, which makes synthetic magnetic field is strengthened, the generator output voltage for high.
Do more than appreciation: three straight not qualitative load makes synchronous generator create born different armature reaction, then make its output voltage make replacement.Navigate these rules, or configure a better load for the diesel generator set, the unit to play all power, supply the superior power.
没有评论:
发表评论