If the biomass pellet machine cannot start, it may be because the motor is missing and needs to be investigated in the following aspects:

When the biomass pellet machine is powered on, it usually makes a dull buzzing sound and cannot start. Because when one phase power supply is missing, a single-phase pulsating magnetic field is generated in the stator core, which is decomposed into a rotating magnetic potential with equal amplitudes in the forward and reverse sequences.

The short-circuit of the biomass pellet machine at this time has a negative reaction to the positive and negative sequence magnetic potential of the stator, which is synchronized with the positive sequence generated after the stator is synthesized. The same is true for the forward and reverse sequence magnetic potentials, which cannot cause the motor to start, and the motor cannot start.

But the situation is even bigger during operation. The slip rate between the rotor and the positive sequence magnetic potential is small, the rotor is almost open circuit, the positive sequence apparent impedance is large, the rotor positive sequence current is small, the synthesized forward rotating sequence magnetic field after the reaction of the rotor still increases, the magnetic density and the reverse current potential increase. is large, the positive sequence value also increases.

The rotor of the biomass pellet machine shows the most serious demagnetization response effect when the reverse sequence potential is magnetically short-circuited. The reverse sequence apparent impedance is very large, the reverse sequence current of the rotor is minority, the resultant reverse sequence magnetic field width is very small, the magnetic density and back electromotive force are small. Therefore, the reverse torque generated is also small. The difference between the forward and reverse sequence magnetic field torques is the actual torque generated by the motor.  

Therefore, when the motor of the biomass pellet machine loses phase, the motor has no starting torque and can generate driving torque in the direction of rotation, thereby continuing to rotate. Because the synthetic magnetic potential wave is an elliptical rotating magnetic field, the harmonics and harmful current components are primitive. Therefore, during the installation process of the biomass pellet machine, you must find a professional electrician or biomass pellet machine manufacturer to guide the installation and wiring to prevent burning the motor and even causing personal injury. The occurrence of electric shock accidents.

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